I've always loved the 318. It's basically a slightly smaller displacement 340 and any mods you can make to the former you can do to the latter. It's real rowdy with the right mods. Most importantly though, it can be stroked to 390 cubic inches! That's 72 extra cubes and totally worth the price it costs, even with no mods you'll get a bunch of extra torque and power. To put that in perspective, boring and stroking a 305 SBC will get you get a max of 334 cubes and boring and stroking a 302 Ford and you get a max of 347. The 318 wins any comparison every time.
@@bigboreracing356 the 273 is a surprisingly strong engine, same stroke as the 318,340, but small bore, the factory 4 barrel heads for the 273 are better for compression, but small valves with same heads, intake camshaft and carburetor, headers, the 318 will have more power simply because it is larger in cubic inches, other than the bore the blocks are identical, the 273 benefited from the solid lifter cam and closed chamber heads and Free flowing exhaust, the 318 was a smog engine to replace the 273 like the 400 replaced the 383 , and the same rules apply ,add exactly the same heads cam exhaust intake carburetor and the larger displacement produces more power
The stroker is way too expensive for the 318. The 408 stroker it for the 360 is over $1,000 less. Piston selection is rather sparse so using the open chamber J heads gives you very low compression. J heads are fine but they aren't world beaters. Honestly I don't see the appeal
St Jude is a 100% win for your charitable donations , i donated for 20 plus years before i went broke , my parents donated for 50 YEARS !!! ST JUDE IS AWESOME
Really cool to hear ICON stepped up and over delivered. I only buy ICON pistons, good customer service, and it's feels good to see they do stuff like this. 👍
I thought the original idea was to use optimized stock parts. The pistons seem like quite a deviation from that. If you can afford those there's little reason to run a 2bbl. Still a cool project, still following, just seems like this is basically what the Junkyard Jet guys got disowned for.
All I can suggest as a sheet metal worker David is, have you tried Rexcut angle grinder wheels? They are great as they remove material they also polish and don't take it off too quick, they are a staple in the sheetmetal industry 😅
That's always DV thank you. And when it comes time to buy. I will by whom you recommended. God has gifted you. You put me in the winner's circle August 7th 1999. Speedway sportsman Old Dominion speedway. By car number was 50. What a coincidence keep sharing your wisdom thank you
The Mopar guys can get a little intense at times. Gotta be like my first wifes boss used to say; "keep a tight arsehole. No. No. Firm but relaxed." Then a few just get bent over Tony. For those I suggest to read above.
There are always different approaches to finding not just Power but as I like to put it "Good Power" something that is useable accessable and reliable long term. For example tale a Ford 351 Windsor stock not so good in some ways then better in others such as good port sizes compared to way too big Clevelands and way too small in smaller Windsors exempting the Boss 302 which was something of a bastard child But take different length conrods from a Chrysler mix with pistons from a Chev to balance the Rod length changes and end up with a superior Rod length to stroke ratio that allows better power different dwell time over TDC that spreads the power peak further and the end result is what I like to call a Square engine namely 800 Horsepower and 800 Ft Lb of Torque and reliable to boot
I side grind with a large cartridge roll to keep the scratches parallel then out to mag, rough the big ends and rough bush, then polish then shotpeen (mill spec not wheelabrator) then finishbushings, hang and align and finish I like the SPS bolts from Direct Connection I went to KB and was in on designing the step dome pistons for the Mopars with then chief engineer John Erb. r and d from TMS Propane performance with dynowork at Speed-O-Motive These pistons or custom similar are a necessity for any open chamber MOPAR Today unless a matching number build resto I would not use these vintage iron heads
Looks possible is right 400 hp plus has already been made time and time again using these stock parts in class cars where they run factory parts and that's with a two barrel carburetor, Joe Sherman showed this in his magazine back in the 70s so this is nothing new or hard to achieve with the right tricks we do this now with a 302 a 318 would be a breeze so it's very possible because it's already been done like I said
Ok , well thanks for letting us all know now we don't have to watch it we'll just take your rich description of a magazine article from fifty years ago and bolt that up to go for a ride .😊😁😂
@Jim your very welcome this is information I thought would be helpful and as for a magazine I do this myself with a stock 302 that goes 9s in the quarter mile so yeah I go for a nice ride so thank you for your sarcasm and maybe you could learn something from the guys who give 50 year old information by the way doesn't david have 50 or more years experience 😀
Please can you do a video on the new things that you mention regarding balancing cranks and then apply that to the BMC A series mini and Sprite/Midget cranks things like drilling the journals for balance are not in your book.
What valve sizes are you using as the later cop car 318 heads used 1.88" intake valves and 1.60" exhaust valves. Is the a place to go that shows all your part numbers and casting numbers, specifications. I know and old school trick we used to was port match a iron 340 4bbl intake manifold to a 318 grant it you all are insisting on an iron 318 2bbl intake and highly modified Carter 2bbl and I understand the concept of the build. Keep at it I can't wait to see the dyno number!
Seeing you unboxing those pistons was fun. It also reminds me of how this project has evolved from what I think Tony had in mind. The beautiful part is this is more realistic to how a lot of projects go.
I’m really enjoying this Mission Impossible series. But I am finding it incredibly difficult to watch it in any logical sequence. This doesn’t seem to respond to any search to determine progression. The numbering seems inconsistent. I really wanted to watch the next promised segment smoothing the bore entry from underneath to promote better flow but can not track it down.
David, I have always heard engine builders decades back, (I am old) talk about the benefit of reciprocating mass helping torque, is there a trade off by lightening these components?
Hello Mr. Vizard! Is the coefficient of discharge at 14:30 staying on that level from .400 lift onwards, because the speed of discharge has reached the speed of sound from that point onwards? Maybe the supersonic nozzle effect could prevent the coefficient of discharge from climbing again? Best wishes and thank you for your detailed videos!
David, do you suppose that Charlie would use these heads to create porting templates, like Mopar Performance/Direct Connection used to sell, to give us amateurs an opportunity to port our own 318 heads? I'd certainly buy them!
Would be nice to know what made that port efficiency go so high. If you could duplicate that across the whole lift range would make for a killer set of heads! LOL
Interesting & informative. I've always had a soft spot for the diminutive 318 and my question is thus. What is the compression height of those pistons? Are they available for the 273 as well? As always enjoyed the video, keep up the good work.
Just start with the 318blocka and put the crank rods etc and you will be ahead of the game, you would ruin a 273block if you try to bore it to the same size as the 318
@@dinadaughtry8993 The compression height is of great interest to me as I'm toying with the idea of a 0.040" over, stock stroke 318 giving me a nice 325 when done. Heads will be the 'J' castings. Most replacement pistons are of the low compression ratio variety so given the larger combustion chamber of the 'J' heads, I'm thinking these pistons will be a good fit. As for the 273, I can get pistons in two different ratios from EGGE Machine but I'm wondering if this manufacturer offers an option as well.
I'm not sure but if the crank is well balanced by itself & with the flywheel & front pulley plus all the reciprocating parts are in balance as well which is David's thing should be no problems at all!
I think it was re balanced after the excess material was removed which is what I meant to say before being rebalanced again with the flywheel & pulley in situ 👍
I'm wondering if it is worth it to do all this to a street driven engine in a 1970 Dodge W200. I can see matching the rod and piston balance and balancing the crank to that. Just not sure all that material removal is going to help in my situation. I am going to gently port the heads and use a TR5 Edelbrock tunnel ram with a pair of AVS2 carbs on top.
I think it would be counterproductive. A heavier rotating assembly, like a heavier flywheel, carries more stored energy, which may keep you from stalling the engine at low rpm with a heavy load.
@@servediocylinderheads good deal. I’m still in the planning stages of a future project street build. However it’s a totally different critter. Toyota modern 4 banger with aluminum 4 valve head and a goal of 300 hp on Costco gas🤣
I'm interested in any information available on the pistions P/N , Ring size availability and over sizes available any information that You can share will be greatly appreciated, Thank You 🇺🇲🇵🇷
What makes rods fail? Is it the intake stroke, and is it less with boost? Side load when the crank pin isn't in line with the rod center line. Or is it simply inertia?
Hi David I'm wondering weather a valve seat job which hasn't been done yet may improve the intake figures ? And are you going to reverse the pistons like Uncle Tony does using Bill Jenkins technique ?
David i have a 72 360 i want to build. Do you think light 273 rods would live with the mods you have outlined? Heavilily ported/milled j heads 2.02 valve
I just subscribed, and trying to find out how to enter to win. But it's not going anywhere if I win it. Just hope a poor broke guy like me stands a chance!
It’s starting to become evident that at the time that the engine gets its check up on a Dyno, that the larger carburetor may need to be sitting aside already modified and ready to go.
David, there is a Russian guy rebuilding engines who cuts oil grooves, even drills holes in piston skirts as well as rod, main bearings, camshafts, copper plates piston skirts, cylinders. It seems to me he prefers engines on the tight side, so keeping in mind this it would be interesting to hear your opinion if it's nonsense or not. His work can be seen here: www.youtube.com/@SmeshnoPoznovatelno/videos
If your going to drill holes in anything stressed they should be smoothed off with no sharp edges which would lead to cracking , if manufacturers of pistons spending millions of dollars on R&D thought this was a good idea it'd already be on the parts 🤔
I would like to point out an issue with your software, you have the throat diameter as 1.55” and throat area as 1.89”. This is incorrect because you haven’t factored in the area taken up by the valve stem itself which is 0.11” so your usable throat area is actually 1.78” Just this simple mathematical error throws out every result.
Also this flow test was done on a 4.11” bore when it should of been done on a 3.96” bore. Because of this the flow numbers will be inflated because of less bore shrouding using a 4.11” bore adapter.
It's over the entire project. It's a build series. Increasing efficiency and gaining 100hp. Freeing up HP. In the Rods, crank, port, polish, deck heads. All the time consuming tricks. Where as now I'd go buy CNC aluminum heads instead of porting cast iton. I thought it was to be all stock parts. However a piston company stepped up.
Ya sounds like piston flipping i don't know but if a factory left 100 hp on the tablet because they put the pistons in wrong you should probably avoid that manufacturer
Truly my favorite engine build in youtube world. Getting the most out of what we've got is an art form. Thanks David!
Yes! Like the old days when the aftermarket was small and you couldn't buy good flowing heads, you had to make what you have work for you.
So looking forward to seeing this engine on the dyno, hopefully all the hard work will surpass even David's expectations 👍
It can compete in pro stock
Your videos are waaaaaaay too good to be so short. Us engine nerds like to geek out on your videos as long as we can! Keep em coming Mr. Visard
There's not enough time in this world sadly
Exactly
Thank you for taking the time to show us how you achieve power, you have really helped me and I do appreciate it Mr. David
Charlie videos are also excellent. Keep up the great work DV.
Thanks Bias!
I've always loved the 318. It's basically a slightly smaller displacement 340 and any mods you can make to the former you can do to the latter. It's real rowdy with the right mods. Most importantly though, it can be stroked to 390 cubic inches! That's 72 extra cubes and totally worth the price it costs, even with no mods you'll get a bunch of extra torque and power. To put that in perspective, boring and stroking a 305 SBC will get you get a max of 334 cubes and boring and stroking a 302 Ford and you get a max of 347. The 318 wins any comparison every time.
@@bigboreracing356 I don't think that would be true with same spec on both engines.
@@bigboreracing356 the 273 is a surprisingly strong engine, same stroke as the 318,340, but small bore, the factory 4 barrel heads for the 273 are better for compression, but small valves with same heads, intake camshaft and carburetor, headers, the 318 will have more power simply because it is larger in cubic inches, other than the bore the blocks are identical, the 273 benefited from the solid lifter cam and closed chamber heads and Free flowing exhaust, the 318 was a smog engine to replace the 273 like the 400 replaced the 383 , and the same rules apply ,add exactly the same heads cam exhaust intake carburetor and the larger displacement produces more power
318 is a good size. Big enough, but not *too* big. Can spin “up there,” which is a good thing.
@@bigboreracing356 so ‘big bore racing’
Advocates for the smaller bore engine😂😂😂
The stroker is way too expensive for the 318. The 408 stroker it for the 360 is over $1,000 less. Piston selection is rather sparse so using the open chamber J heads gives you very low compression. J heads are fine but they aren't world beaters. Honestly I don't see the appeal
St Jude is a 100% win for your charitable donations , i donated for 20 plus years before i went broke , my parents donated for 50 YEARS !!! ST JUDE IS AWESOME
I enjoyed this video. I also enjoy working on classic Mopar cars and engines.
Thanks!
Looking forward to the results, love the little 318s
Thank you David for sharing a life time of real results with folks who truly appreciate you and your work. God bless.
Been watching Charlies vids, thanks Tony and Andy for all the new things I've learned. And of course thanks to DV.
Coming together
Well done DV and Charlie
I can't wait to see this engine on the dyno
Really cool to hear ICON stepped up and over delivered. I only buy ICON pistons, good customer service, and it's feels good to see they do stuff like this. 👍
I wish this was available when i was younger and i had a 318! Great job!
Another interesting video
Thanks Mr Vizard
I thought the original idea was to use optimized stock parts. The pistons seem like quite a deviation from that. If you can afford those there's little reason to run a 2bbl.
Still a cool project, still following, just seems like this is basically what the Junkyard Jet guys got disowned for.
Guess you haven't been paying attention........In the first video of this series he says he will be using new pistons....keep up....
New, but stock was how Tony sounded. Optimized stock parts. That definitely applies to the rods.
Hypereutectic pistons ARE a pretty cost effective upgrade, just outside the original parameters.
A flap disc with 60 to 80 grit would clean the rods up as well as the grinder wheel and doesn't put as much heat into the metal
I have so enjoyed ur videos DV, thank u for sharing ur knowledge. Its greatly appreciated
Personally thank you.
I’m working on my 2nd gen LT1 and enjoy using your info on removing weight before I take it to machine shop.
Charles knocked it out of the park.
All I can suggest as a sheet metal worker David is, have you tried Rexcut angle grinder wheels? They are great as they remove material they also polish and don't take it off too quick, they are a staple in the sheetmetal industry 😅
That's always DV thank you. And when it comes time to buy. I will by whom you recommended. God has gifted you. You put me in the winner's circle August 7th 1999. Speedway sportsman Old Dominion speedway. By car number was 50. What a coincidence keep sharing your wisdom thank you
Thanks David
SCIENCE! I am new to this, but enjoying it. Thank you.
Thank you D.V. , Hemet Ca.
Thank you DV, v/r wh
Looks like a few people should go change their tampon before they hop on the comments
The Mopar guys can get a little intense at times.
Gotta be like my first wifes boss used to say; "keep a tight arsehole. No. No. Firm but relaxed."
Then a few just get bent over Tony. For those I suggest to read above.
thank you dave
Nice, thank you sir
I polished and lightened my 1.9 vw tdi rods and crank like this.
They said don’t do it.
Oh my gosh it’s incredible improvement!!!
Cheers mate , love ya work. Very interesting.
Keep the videos coming
Thanks for the kind words!
There are always different approaches to finding not just Power but as I like to put it "Good Power" something that is useable accessable and reliable long term.
For example tale a Ford 351 Windsor stock not so good in some ways then better in others such as good port sizes compared to way too big Clevelands and way too small in smaller Windsors exempting the Boss 302 which was something of a bastard child
But take different length conrods from a Chrysler mix with pistons from a Chev to balance the Rod length changes and end up with a superior Rod length to stroke ratio that allows better power different dwell time over TDC that spreads the power peak further and the end result is what I like to call a Square engine namely 800 Horsepower and 800 Ft Lb of Torque and reliable to boot
I side grind with a large cartridge roll to keep the scratches parallel then out to mag, rough the big ends and rough bush, then polish then shotpeen (mill spec not wheelabrator) then finishbushings, hang and align and finish
I like the SPS bolts from Direct Connection I went to KB and was in on designing the step dome pistons for the Mopars with then chief engineer John Erb.
r and d from TMS Propane performance with dynowork at Speed-O-Motive
These pistons or custom similar are a necessity for any open chamber MOPAR
Today unless a matching number build resto I would not use these vintage iron heads
David, I wish you'd get back on this project. It appears to be dying on the vine. I'm growing weary of all the Mustang content.
Looks possible is right 400 hp plus has already been made time and time again using these stock parts in class cars where they run factory parts and that's with a two barrel carburetor, Joe Sherman showed this in his magazine back in the 70s so this is nothing new or hard to achieve with the right tricks we do this now with a 302 a 318 would be a breeze so it's very possible because it's already been done like I said
Ok , well thanks for letting us all know now we don't have to watch it we'll just take your rich description of a magazine article from fifty years ago and bolt that up to go for a ride .😊😁😂
Terry, never saw that but it's good to know it's doable!
DO YOU RECALL WHAT SIZE CARBURETOR. CFM ??
@Jim your very welcome this is information I thought would be helpful and as for a magazine I do this myself with a stock 302 that goes 9s in the quarter mile so yeah I go for a nice ride so thank you for your sarcasm and maybe you could learn something from the guys who give 50 year old information by the way doesn't david have 50 or more years experience 😀
@Terry Grover Terry thats damn impressive,would love to know your combo. Damn impressive brother.
Charlie Servido put in king's work on them heads. I'm curios of the cam profile now, since the exhaust is so efficient.
Hope your feeling well David!
Please can you do a video on the new things that you mention regarding balancing cranks and then apply that to the BMC A series mini and Sprite/Midget cranks things like drilling the journals for balance are not in your book.
Don't even think about it do it !
Nice work David!
How is UTG even connected to the build. I thought he was personally going to do a "low buck build" , this is not THAT!
UTG smokes unfiltered cigarettes
MP- your point??
YES IT IS. THE TARGET WAS TO BE UBDER $2000
What valve sizes are you using as the later cop car 318 heads used 1.88" intake valves and 1.60" exhaust valves. Is the a place to go that shows all your part numbers and casting numbers, specifications. I know and old school trick we used to was port match a iron 340 4bbl intake manifold to a 318 grant it you all are insisting on an iron 318 2bbl intake and highly modified Carter 2bbl and I understand the concept of the build. Keep at it I can't wait to see the dyno number!
So when is all of this going to be put together and tested?
Seeing you unboxing those pistons was fun. It also reminds me of how this project has evolved from what I think Tony had in mind. The beautiful part is this is more realistic to how a lot of projects go.
I’m really enjoying this Mission Impossible series. But I am finding it incredibly difficult to watch it in any logical sequence. This doesn’t seem to respond to any search to determine progression. The numbering seems inconsistent.
I really wanted to watch the next promised segment smoothing the bore entry from underneath to promote better flow but can not track it down.
Great vidja 🤙🏼
Hell yeah I’m watching it again AAWWWOOO 👊🏻
As an apprentice in the 1980s, I worked for a machine shop that would have me polish rods like this but we would use a belt sander
I have a fear of all that loose abrasive and metal fine scratching the highly finished bearing surfaces.
Let's face it - If some rich guy has got a 1932 Duesenberg, he is more likely to stick it in a Museum than race it!
Nice job David
David, I have always heard engine builders decades back, (I am old) talk about the benefit of reciprocating mass helping torque, is there a trade off by lightening these components?
I need this motor bad
Hello Mr. Vizard!
Is the coefficient of discharge at 14:30 staying on that level from .400 lift onwards, because the speed of discharge has reached the speed of sound from that point onwards?
Maybe the supersonic nozzle effect could prevent the coefficient of discharge from climbing again?
Best wishes and thank you for your detailed videos!
Charlie says he us shooting for 250 cfm with the 1.78 valves on the open chber heads he is working on.
David, do you suppose that Charlie would use these heads to create porting templates, like Mopar Performance/Direct Connection used to sell, to give us amateurs an opportunity to port our own 318 heads? I'd certainly buy them!
What about the heat created while you are grinding on those rods, will that not have a negative effect on the rods?
What would be the Maximum power level of the 318 rods under normal circumstances ?
I really want to see some AMC dog leg port heads....
Would be nice to know what made that port efficiency go so high. If you could duplicate that across the whole lift range would make for a killer set of heads! LOL
🇦🇬
5 Golden Porting Rules…..continuation? 🤷🏾♂️
🙇🏾♂️
Do the crank and rods needs to be balanced for a street combo , with All this weight that as been removed ??
100%
5 Golden Porting Rules…..continuation?🤷🏾♂️
I was hoping for modified stock pistons...but it probably wouldn't hope to make 300hp with them
What would be the point in buying factory pistons with all their short comings and probably at a higher price too?
@Brian Tayes the pistons are free, and represent the "impossible " part of "mission possible"... they are free
Interesting & informative. I've always had a soft spot for the diminutive 318 and my question is thus. What is the compression height of those pistons? Are they available for the 273 as well? As always enjoyed the video, keep up the good work.
Just start with the 318blocka and put the crank rods etc and you will be ahead of the game, you would ruin a 273block if you try to bore it to the same size as the 318
@@dinadaughtry8993 The compression height is of great interest to me as I'm toying with the idea of a 0.040" over, stock stroke 318 giving me a nice 325 when done. Heads will be the 'J' castings. Most replacement pistons are of the low compression ratio variety so given the larger combustion chamber of the 'J' heads, I'm thinking these pistons will be a good fit. As for the 273, I can get pistons in two different ratios from EGGE Machine but I'm wondering if this manufacturer offers an option as well.
How do you balance the crank after lighting the rods and new lightweight pistons?
I wonder, weather the crankshaft does not need to be balanced with dummy weights, with all that weight reduction on rods an pistons.
I'm not sure but if the crank is well balanced by itself & with the flywheel & front pulley plus all the reciprocating parts are in balance as well which is David's thing should be no problems at all!
One of his vids shows that he is taking a lot of weight off the crank then having it rebalanced.
When you grind off weight by hand, there is no way that it would just "be balanced".
I think it was re balanced after the excess material was removed which is what I meant to say before being rebalanced again with the flywheel & pulley in situ 👍
I'm wondering if it is worth it to do all this to a street driven engine in a 1970 Dodge W200. I can see matching the rod and piston balance and balancing the crank to that. Just not sure all that material removal is going to help in my situation. I am going to gently port the heads and use a TR5 Edelbrock tunnel ram with a pair of AVS2 carbs on top.
I think it would be counterproductive. A heavier rotating assembly, like a heavier flywheel, carries more stored energy, which may keep you from stalling the engine at low rpm with a heavy load.
Wonder what will happen if you apply this to a 340,
probably 500+ hp !
Nah. If the goal is 1 HP/ci, the 318 will make about 320, and a 340, by benefit of better heads, would probably be 350-360 HP.
Does the valve angle difference between the chevy vs mopar make any real difference in terms of flow ?
Mr. Vizard did you happen to go by the nickname of T.O.O.?
You should probably include links in the description for everyone involved
Charles Servedio cylinder head porting and flowbench. Thanks
@@servediocylinderheads good deal. I’m still in the planning stages of a future project street build. However it’s a totally different critter. Toyota modern 4 banger with aluminum 4 valve head and a goal of 300 hp on Costco gas🤣
I'm interested in any information available on the pistions P/N , Ring size availability and over sizes available any information that You can share will be greatly appreciated, Thank You 🇺🇲🇵🇷
Te los consigo ...
What makes rods fail? Is it the intake stroke, and is it less with boost? Side load when the crank pin isn't in line with the rod center line. Or is it simply inertia?
Just ported the head of my lawnmower. Silly, I know, but I couldn't stand having casting ridges
I did plenty, moving on to mud boat cylinder heads for a friend soon.
Hi David I'm wondering weather a valve seat job which hasn't been done yet may improve the intake figures ? And are you going to reverse the pistons like Uncle Tony does using Bill Jenkins technique ?
David i have a 72 360 i want to build. Do you think light 273 rods would live with the mods you have outlined? Heavilily ported/milled j heads 2.02 valve
Excited to see this engine run. Will it make the desired power or will it exceed it? I think I will exceed the numbers!
How is the 318 going to be raffled off, how do I enter to win?
I will buy it
I just subscribed, and trying to find out how to enter to win. But it's not going anywhere if I win it. Just hope a poor broke guy like me stands a chance!
part #'s so we can build an engine like this please
It’s starting to become evident that at the time that the engine gets its check up on a Dyno, that the larger carburetor may need to be sitting aside already modified and ready to go.
👍
I hope I win.
Most low buck builders do not receive high dollar parts for free.
WE KNOW THAT BUT WE ARE TALLYING UP THE COST AS IF WE WERE PAYING FOR PARTS. $2000 SHOULD BE IT IFF YOU BUY ALL THE PARTS WE USED,
Shows me pistons without talking about the rings, ,,, ???
Actually I have one made of billet aluminium that doesn't have the ring lands machined yet. But now I've mentioned rings I'm out
😁
David, there is a Russian guy rebuilding engines who cuts oil grooves, even drills holes in piston skirts as well as rod, main bearings, camshafts, copper plates piston skirts, cylinders. It seems to me he prefers engines on the tight side, so keeping in mind this it would be interesting to hear your opinion if it's nonsense or not. His work can be seen here:
www.youtube.com/@SmeshnoPoznovatelno/videos
If your going to drill holes in anything stressed they should be smoothed off with no sharp edges which would lead to cracking , if manufacturers of pistons spending millions of dollars on R&D thought this was a good idea it'd already be on the parts 🤔
🥝✔️😎
And the skirt weighs less
I would like to point out an issue with your software, you have the throat diameter as 1.55” and throat area as 1.89”. This is incorrect because you haven’t factored in the area taken up by the valve stem itself which is 0.11” so your usable throat area is actually 1.78”
Just this simple mathematical error throws out every result.
Also this flow test was done on a 4.11” bore when it should of been done on a 3.96” bore.
Because of this the flow numbers will be inflated because of less bore shrouding using a 4.11” bore adapter.
@@seanb250 That is the only size bore adapter I have that will fit this heads so that is what will be used. Thanks
@@seanb250 I should include that a used 318 head gasket is used on the 4.11 " bore.
@@servediocylinderheads doesn’t change the fact that the numbers will be inflated somewhat.
Best of luck with the rest of the build 👍
100 hp from what shaving the balancing pads. Bs
100 hp from lightened rods is total BS. So is your deduction from what was in the video. Suggest you go back and watch it again!!!!!!
It's over the entire project. It's a build series.
Increasing efficiency and gaining 100hp. Freeing up HP. In the Rods, crank, port, polish, deck heads. All the time consuming tricks. Where as now I'd go buy CNC aluminum heads instead of porting cast iton.
I thought it was to be all stock parts. However a piston company stepped up.
Ya sounds like piston flipping i don't know but if a factory left 100 hp on the tablet because they put the pistons in wrong you should probably avoid that manufacturer
James - 100 hp piston flip??????? Not sure where you are coming from here!
You make off the cuff comment without any thought or insight into what ??
@@DavidVizard UTG stated 100hp gain by flipping pistons
@MP-pz9oe Tony never said that.
@@MP-pz9oe UT did not say it was a 100hp gain with the flip.
Amazing job 👍 this build is great 🤯 can’t wait to see what you get out of it 🥹
Thanks!