This is definitely what we need for a "big block" option on minibikes. I agree the 420/440 at around 80lbs are just way too heavy especially after you throw a 40 series or 780 TC on there
Love what y'all are doing, but we are All still waiting on a 274cc "Road to Powaa" build..... Till then keep up the good work, and Blessings to the whole Wrecking Crew.
Awesome, unboxing video. I talked to you earlier about this engine on a log splitter. I went ahead and ordered one. Once I get it in and install. I'll let you know how it turns out. Thanks again.
Just a follow-up. The engine is doing great. I ended up using an .008 shim to wrap around the circumference of the shaft minus the width of the key. Also, I made a step key. The coupler I have has a 1" bore. I've split a little over two ricks of wood. The only two complaints I have are that the spark plug is hard to get to, you have to use the tool that it came with, and also, it would be a plus to have a dip stick on both sides of the crankshaft. Most Predator engines have two dip sticks. A plus on a log splitter. But other than that, it's a power house. Running a 16GPM pump and a 4 1/2" cylinder with no issues.
I saw the " .984" output shaft size and figured you'd turn a tube down to .016,cut a few sleeves lengths from it,and then cut the keyway channel.That way you'll have some adapter sleeves for different clutches handy. It will be interesting to watch you work with these.Thanks RBG !
while it can be done with real precision, its risky to turn such a small sleeve. It would be near tin foil thin and very flimsy. Would almost be better to make a sleeve from .008 brass shim stock if that exists.
There is a wide range of shim stock available in sizes and materials. I've shimmed metrics shafts to accept standard inch pulleys in the past. My suggestion is that if doing so, use steal shim stock along with anti-seize. Also, you will more than likely have to machine a hybrid key. I would recommend a sheet of. 007" and .008" shim stock.
cool engine and I am loving the dyno runs in the other segment, no garage time for me this weekend here in Nova Scotia Canada we are having wind chills down to -45 to -50 this weekend, not going to try and heat the garage this weekend even though its well insulated, at 64 yrs old I'll watch you guys on you tube.God Bless
And according to Duromax these have the same base mounting pattern as the standard smallblock motors. I would like to see one of these with a 3/4" crankshaft because you can always shim up to 1". These would be a really good large displacement motor for bikes like the MB200-2/Hurricane with a fairly restrictive frame/motor mount layout. This looks like it might just squeeze in and bolt up to the factory mount location without fouling on the jackshaft for the secondary sheave.
built kind of like a briggs animal/model 15 where the case is little bit taller so it can handle the big 62mm stroke, but still retains small setup. THIS engine will probably not be a friendly engine bolt on performance parts. you will more than likely have to know how to machine and modify stuff if you want to upgrade it.
Wouldn't be hard to machine a spacer for the crank to adapt up to 1 in. Looks like it could be really good to build if there was aftermarket support. If not and your willing to spend time and money you can get custom parts. Cams can be welded up then custom ground. Find a local cam company that can regrind it. You can also order custom rods and pistons. Or take measurements and see if anything else is usable from other engines.
Dynocam can make the camshafts for these beast and ARC can make the design and manufacturing of the billet rods, flywheels and covers. This engine has definitely a lot of potential.
You should do a road to hp with a Honda gx200 and compare it to the predator I'm thinking of swapping 1 on my go kart as can't get predators where I'm at
Man I wanna see some ridin I miss the builds where they mod the motor and take it out and rip it now we get to see a machine rip it 😅 which is pretty cool I’m just giving y’all hard time
1” crank shaft size would be perfect but would love to see a back to back dyno runs no replacement for displacement unless the small engine had a superior head design or power is made at a higher rpm I’m calling bs on the hp numbers
So I also contacted them about the shaft an they pretty much said this engine is mainly ment for power washer an log spliters. Buy a 7hp engine for mini bike Greg did you get any word about it. I haven't seen you post one video about since this one???
I would be very interested to see if this can work, I'm looking to build a bike with the most lowest end torque possible for climbing, don't much care speed, I want to climb without having to go full throttle, got a lot of very steep hills and very steep climbs on our local trails. My 224 is doing very well, I'm planning on replacing the stock rear sprocket with a 60 tooth.
I understand that my idea would create a lot of extra work for you but I have an idea if you run out of them. Maybe run a poll to see how many few the same as me. I think it would be interesting and cool to see who makes the most horsepower and torque just right out of the box. No mods no A/M parts just a dollar per horsepower and dollar per useable horsepower comparison. I could see this getting really expensive though gathering all of these engines. But food for thought.
Send it to Abom79 and have him spray weld it up to 1"! 😂 Or maybe buy some 0.007 or 0.008" metal shim stock from McMaster-Carr and run a 1" pulley or clutch on there!! Woohoo! I guess you'd have to deal with the keyway, too, since it's a touch over a quarter inch. Hmmm.
Seems like the 500cc Duromax is still just a generator only engine for their 13kw. Wonder how long it will be, before it comes out as a standalone engine?
What is bolt pattern on the base? is it the same as the 212? 301? or is it something else entirely? I am looking for the biggest (most powerful) engine can just drop in to replace an old 8hp Tecumseh on a snowblower.
That’s very interesting. Too bad about the crank size though. It might also be interesting to run all three of those engines on the dyno for a comparison test. (Stock of course)
Is there a Billet Rod for this and a Billet Flywheel? What is the CAM Lift & Duration? What are the Valve Sizes? Is there Billet Rocker Arms for it? How much can the 200/212 and this Block be Big Bored too?
How bout a gx340, it came off a pressure washer. Do you think its too big for a minibike like a baja warrior or a ct200u-ex. I know it'll fit but will it be as uncomfortable to handle on the trail as the 420, 440 etc.
RBG the shaft diameter being non-standard means Duromax never intended this engine to be mated to a centrifugal clutch. Pumps, log splitters, generators, etc.
Except that the 289, 302, 351W, & 351C all have a 4'' bore. A better comparison would be a stock 289/302 block that can be bored/stroked to 347 vs something like a Dart aftermarket block that can be bored/stroked to 363. Or we could just call it the Pontiac V8 of small engines since its in between a big block, & a small block.
@@johnmartin560 The 351 Windsor is just a tall deck version of the small block Ford(Windsor family) had to refresh my memory. I was going by the overall larger exterior dimensions not cubic inches. Intakes of 351w doesn’t fit the smaller cubic inch blocks.
@@FangOfTruth You're right. I'm sure the deck is taller on top of having a much larger bore while still being built on a "small block" type platform. I hope this thing sees some aftermarket development because it looks like it has huge potential.
I've been eyeballing this engine and noticed the 25mm crank. Who would buy this engine with a 25mm crank? Nothing will fit it. It's amazing nobody at the company caught that.
Oh wow the weight is only 42 lb, thr is absolutely no other engine with equal or less weight at 9hp! I will be looking toward using this for a mudmotor.
There are a couple of other Chinese companies building these “smedium” block engines. Unfortunately, since they aren’t based on a Honda GX they’re all just a little different. It’s going to make aftermarket parts difficult to justify.
I just tore apart a 254 LCT it's even closer than this to the predator the block is about 1/2" wider so cam and crank are wider I'm trying to find a 243 powermore that brand is closer to clone than LCT the 254 rod journal is also .080 smaller than clone
If they do a 500 and parts are compatible with the 440 I'm getting one. I'll wait and see. Just started and I'm not far enough into my project to need to buy the engine for some time.
Not to be a jerk, but I have to point out that this IS 100% a SMALL BLOCK engine! SMALL BLOCKS have a 162mm x 78mm mounting bolt pattern on their base. They also have a 106mm SHAFT CENTERLINE HEIGHT from the base. That's what this engine has! A Big Block would have a 196mmx86-103mm mounting base pattern and a 133.5mm shaft centerline height. There is NO SUCH THING as a "medium block."
@@billwilliamson9842 now you have a point, 3600rpm is quite low spinning for that displacement, that engine can easily spin at 6/7k rpm (with some mods of course), and by that moment I belive we could see about 15/18HP (or maybe it would blow up who knows...). Now it makes sense, thanks man.
I've stopped building carts with these conventional engines and went with fuel injected motorcycle engines. Until single cylinder manufacturers start offering fuel injected engines for purchase, at least cheap retrofits, other options offer better performance and reliability.
Have to have a bit of a laugh re the crank size Fyi the REST OF THE World is metric Seriously US dont change We ( the rest of the world) wont know what to do if you did!
I don't mean to be nasty but has anyone else notice how Red Beard has upped his game massively over the last 6 years or so but Cars & Camera's have up graded all their tools & workshop but their karts are getting worse fabrication wise .
It's a very poorly designed engine, with non standard shaft sizes. Why on earth would they make the mainshaft .015" undersize? Nobody makes anything that size, off the shelf. The keyway is too small for that shaft too. It should have a 5/16, or 3/8" keyway. It's back to the drawing board for this one.
This is definitely what we need for a "big block" option on minibikes. I agree the 420/440 at around 80lbs are just way too heavy especially after you throw a 40 series or 780 TC on there
One word my friend: DUCAR !!! Best engines ever, they make the best blocks for all the companies, Tillotson, Predator, Duromax, ProQuip, etc...
Depends what frame your putting the engine in bud …
@@nickclashez I put that mofo on a reverse trike !!!
@@nicksilva8966 Maybe look into what a Tilotson is designed after and re write that.
Baja warrior u think a 440 would be to heavy @nickclashez
I was considering a 301 for my Hurricane. But THIS looks like a much better option. can't wait to see you go over it.
That’s what I was thinking because of its size. Let us know how that build goes
@@srcobra50 hopefully they'll go with a 1 inch crank their next run. That'll sure simplify things.
@@shrugger1 hopefully. They should since I can’t think of equipment or anything that uses a 25mm shaft
It'd be really interesting to see the weights on each of them.
Love what y'all are doing, but we are All still waiting on a 274cc "Road to Powaa" build..... Till then keep up the good work, and Blessings to the whole Wrecking Crew.
Awesome, unboxing video. I talked to you earlier about this engine on a log splitter. I went ahead and ordered one. Once I get it in and install. I'll let you know how it turns out. Thanks again.
Just a follow-up. The engine is doing great. I ended up using an .008 shim to wrap around the circumference of the shaft minus the width of the key. Also, I made a step key. The coupler I have has a 1" bore.
I've split a little over two ricks of wood. The only two complaints I have are that the spark plug is hard to get to, you have to use the tool that it came with, and also, it would be a plus to have a dip stick on both sides of the crankshaft. Most Predator engines have two dip sticks. A plus on a log splitter. But other than that, it's a power house. Running a 16GPM pump and a 4 1/2" cylinder with no issues.
Definitely looking forward to the 500cc engine for my Mud-Skipper Featherlite
I saw the " .984" output shaft size and figured you'd turn a tube down to .016,cut a few sleeves lengths from it,and then cut the keyway channel.That way you'll have some adapter sleeves for different clutches handy. It will be interesting to watch you work with these.Thanks RBG !
while it can be done with real precision, its risky to turn such a small sleeve. It would be near tin foil thin and very flimsy. Would almost be better to make a sleeve from .008 brass shim stock if that exists.
I hope they get the output shaft resized.
There is a wide range of shim stock available in sizes and materials. I've shimmed metrics shafts to accept standard inch pulleys in the past. My suggestion is that if doing so, use steal shim stock along with anti-seize. Also, you will more than likely have to machine a hybrid key. I would recommend a sheet of. 007" and .008" shim stock.
A new introduction thanks man
cool engine and I am loving the dyno runs in the other segment, no garage time for me this weekend here in Nova Scotia Canada we are having wind chills down to -45 to -50 this weekend, not going to try and heat the garage this weekend even though its well insulated, at 64 yrs old I'll watch you guys on you tube.God Bless
for small house power they use for longtail pump and install with equipment for agriculture machinery
They sale centrifugal style clutches for a 25mm crankshaft. Most of the 25mm shafts are used on the 2:1 wet clutch kits.
I love your content. Awesome.
And according to Duromax these have the same base mounting pattern as the standard smallblock motors. I would like to see one of these with a 3/4" crankshaft because you can always shim up to 1".
These would be a really good large displacement motor for bikes like the MB200-2/Hurricane with a fairly restrictive frame/motor mount layout. This looks like it might just squeeze in and bolt up to the factory mount location without fouling on the jackshaft for the secondary sheave.
Needs to be 1 inch or you'll be stuck with a 30 series on an engine that makes more power than it should have put throught its clutch.
built kind of like a briggs animal/model 15 where the case is little bit taller so it can handle the big 62mm stroke, but still retains small setup. THIS engine will probably not be a friendly engine bolt on performance parts. you will more than likely have to know how to machine and modify stuff if you want to upgrade it.
in Russia, Neva motor cultivators are equipped with Boeing storn 8 hp 307cc engines. shaft 20mm, key
Pull the crank and turn it down to 3/4”. Run a bully clutch
Ill be snagging one of these for my 4gpm pressure washer to replace my old GX 270 & it looks solid
Is red beard great information
GO RED BEARD
looks pretty cool
Wouldn't be hard to machine a spacer for the crank to adapt up to 1 in.
Looks like it could be really good to build if there was aftermarket support. If not and your willing to spend time and money you can get custom parts. Cams can be welded up then custom ground. Find a local cam company that can regrind it. You can also order custom rods and pistons.
Or take measurements and see if anything else is usable from other engines.
Great, now I gotta get me a 274!
Dynocam can make the camshafts for these beast and ARC can make the design and manufacturing of the billet rods, flywheels and covers. This engine has definitely a lot of potential.
Hell yeah I’m going to get one I’m looking into it right now…..
When are you gonna do the update and measure everything?
Already have on on my Coleman want to see what y’all are going to put on the new batch engines
You should do a road to hp with a Honda gx200 and compare it to the predator I'm thinking of swapping 1 on my go kart as can't get predators where I'm at
Man I wanna see some ridin I miss the builds where they mod the motor and take it out and rip it now we get to see a machine rip it 😅 which is pretty cool I’m just giving y’all hard time
1” crank shaft size would be perfect but would love to see a back to back dyno runs no replacement for displacement unless the small engine had a superior head design or power is made at a higher rpm I’m calling bs on the hp numbers
Great video and info as always!
Glad you liked it!
So I also contacted them about the shaft an they pretty much said this engine is mainly ment for power washer an log spliters.
Buy a 7hp engine for mini bike
Greg did you get any word about it. I haven't seen you post one video about since this one???
In canada princess auto sells it under the powerfist brand. Thats a fact noone needed to know but glad to share lol
I would be very interested to see if this can work, I'm looking to build a bike with the most lowest end torque possible for climbing, don't much care speed, I want to climb without having to go full throttle, got a lot of very steep hills and very steep climbs on our local trails. My 224 is doing very well, I'm planning on replacing the stock rear sprocket with a 60 tooth.
Were you able to find performance parts for it?? Can’t decide between the 208 or the 274 and have to make my decision fast!
In my country they use for boat engine for high house power
I understand that my idea would create a lot of extra work for you but I have an idea if you run out of them. Maybe run a poll to see how many few the same as me. I think it would be interesting and cool to see who makes the most horsepower and torque just right out of the box. No mods no A/M parts just a dollar per horsepower and dollar per useable horsepower comparison. I could see this getting really expensive though gathering all of these engines. But food for thought.
Brother you can tell if it’s a hemi as soon as you get the cover off If the valves are canted at opposite angles
Send it to Abom79 and have him spray weld it up to 1"! 😂 Or maybe buy some 0.007 or 0.008" metal shim stock from McMaster-Carr and run a 1" pulley or clutch on there!! Woohoo! I guess you'd have to deal with the keyway, too, since it's a touch over a quarter inch. Hmmm.
No additional videos??? I am following your findings to see what interchanges before I buy one. Waiting…
I'd suggest using a different engine if you're wanting to upgrade it.
Seems like the 500cc Duromax is still just a generator only engine for their 13kw. Wonder how long it will be, before it comes out as a standalone engine?
You think it would fit a mega motor 212 frame without cutting the jack shaft
What is bolt pattern on the base? is it the same as the 212? 301? or is it something else entirely? I am looking for the biggest (most powerful) engine can just drop in to replace an old 8hp Tecumseh on a snowblower.
Was that a Houge Deka? Thought I saw you using a Benchmade Bugout long ago. :)
That’s very interesting. Too bad about the crank size though. It might also be interesting to run all three of those engines on the dyno for a comparison test. (Stock of course)
wonder how it would stack up against the Pred 224
Great content
Is there a Billet Rod for this and a Billet Flywheel? What is the CAM Lift & Duration? What are the Valve Sizes? Is there Billet Rocker Arms for it? How much can the 200/212 and this Block be Big Bored too?
Is there a charge circuit to recharge the battery and run an led headlight?
Where can I get one of the black rotate things you sit the motor on? I need one lol
How bout a gx340, it came off a pressure washer. Do you think its too big for a minibike like a baja warrior or a ct200u-ex. I know it'll fit but will it be as uncomfortable to handle on the trail as the 420, 440 etc.
It fits in my ct200u-ex
If the crank was fixed I’d put one on all my Baja builds!
RBG the shaft diameter being non-standard means Duromax never intended this engine to be mated to a centrifugal clutch. Pumps, log splitters, generators, etc.
Nothing a piece of .007"-.008" shim stock and a modified key won't take care of. Just a little extra time.
Did they ever get back to yall
I want to change my old techumseh hm100 with a new motor witch do you recomend, it is for an ariens snowblower
Like a 351W is in between a 289/302sb and 352FE,Cleveland, Cleveland/Modified.
Except that the 289, 302, 351W, & 351C all have a 4'' bore. A better comparison would be a stock 289/302 block that can be bored/stroked to 347 vs something like a Dart aftermarket block that can be bored/stroked to 363. Or we could just call it the Pontiac V8 of small engines since its in between a big block, & a small block.
@@johnmartin560 The 351 Windsor is just a tall deck version of the small block Ford(Windsor family) had to refresh my memory. I was going by the overall larger exterior dimensions not cubic inches. Intakes of 351w doesn’t fit the smaller cubic inch blocks.
@@FangOfTruth You're right. I'm sure the deck is taller on top of having a much larger bore while still being built on a "small block" type platform. I hope this thing sees some aftermarket development because it looks like it has huge potential.
Greetings from Texas! What??.... No dyno test?? Awwwww!!
What is that black plastic box under the valve cover?
I've been eyeballing this engine and noticed the 25mm crank. Who would buy this engine with a 25mm crank? Nothing will fit it. It's amazing nobody at the company caught that.
Same mounting holes as a 212?
I would love to see the next few videos, i am trying to figure out the perfect mini bike motor. What is your thoughts??
Oh wow the weight is only 42 lb, thr is absolutely no other engine with equal or less weight at 9hp! I will be looking toward using this for a mudmotor.
Please put it against a stage 1 Tillotson 212.
Check out the LCT 254
“Gee mister, that engine is really light!”
no dyno run yet? I assume no dyno until mods start?
There are a couple of other Chinese companies building these “smedium” block engines. Unfortunately, since they aren’t based on a Honda GX they’re all just a little different. It’s going to make aftermarket parts difficult to justify.
I just tore apart a 254 LCT it's even closer than this to the predator the block is about 1/2" wider so cam and crank are wider I'm trying to find a 243 powermore that brand is closer to clone than LCT the 254 rod journal is also .080 smaller than clone
cant wait to see what parts go in it???????
looks like it will make some big power
A Shmedium gravy bones like when momma makes duh gravies too thin 🤪 ☮️
I missed the discount code. Anymore discount codes coming soon?
There will be another, we just don't know when.
Can a clutch be added to these?
Is the outer diameter of the flat-cut cam gear the same size as any other too?
how would this fit on a Mega Moto frame
I think it would fit. Only downside is that crankshaft size.
I'm suprised they have an odd sized output shaft.
Fingers crossed we can get a good flywheel and cam and springs for this stud of an engine. Big bore and short stroke is begging to spin high rpm…
you could get a ninja 300 engine for $300-500 that will output 39hp...
The Ghost doesn't have a Ducar block. The 224 does.
Does it mount on small block plate or big block?
Looks like it has the small block pattern. Its definitely smaller than the base of the 301.
@@johnmartin560 would be nice if so. Wonder if a 30 series tav would fit.
Boy would one of these make my bike scream.
If they do a 500 and parts are compatible with the 440 I'm getting one. I'll wait and see. Just started and I'm not far enough into my project to need to buy the engine for some time.
Not to be a jerk, but I have to point out that this IS 100% a SMALL BLOCK engine! SMALL BLOCKS have a 162mm x 78mm mounting bolt pattern on their base. They also have a 106mm SHAFT CENTERLINE HEIGHT from the base. That's what this engine has! A Big Block would have a 196mmx86-103mm mounting base pattern and a 133.5mm shaft centerline height. There is NO SUCH THING as a "medium block."
That shaft size is a bummer if you can't fit nothing of the shelf on it.
Put it on a trailmaster and show us the mph
🔧🔧
How is possible for an 274cc engine to generate something as low as 9hp?
9 HP is an engine class, not the actual hp. Like the GX270.
@@WyFoster and what's the actual power output? Because if I Google this engine specs, it says 9hp at 3.6k rpm.
@@billwilliamson9842 now you have a point, 3600rpm is quite low spinning for that displacement, that engine can easily spin at 6/7k rpm (with some mods of course), and by that moment I belive we could see about 15/18HP (or maybe it would blow up who knows...). Now it makes sense, thanks man.
I've stopped building carts with these conventional engines and went with fuel injected motorcycle engines. Until single cylinder manufacturers start offering fuel injected engines for purchase, at least cheap retrofits, other options offer better performance and reliability.
Sounds like you use a soda can shim and run a 1in clutch....
I have a 275cc+ small block 🤫
هل يتركب على قارب الكاياك
Unfortunately this dose nothing for use performance guys
Arc not gonna make rods for all these engines
was this a sponsored video?
PLZ DYNO
Have to have a bit of a laugh re the crank size
Fyi the REST OF THE World is metric
Seriously US dont change
We ( the rest of the world) wont know what to do if you did!
If they will make it have a 1 inch shaft I’ll be picking one up for my go kart
Wish predator line would make a 250 size bigger bore like a 73mm bore use same stuff as a 212 but a bigger bore.
I don't mean to be nasty but has anyone else notice how Red Beard has upped his game massively over the last 6 years or so but Cars & Camera's have up graded all their tools & workshop but their karts are getting worse fabrication wise .
It's a very poorly designed engine, with non standard shaft sizes. Why on earth would they make the mainshaft .015" undersize? Nobody makes anything that size, off the shelf. The keyway is too small for that shaft too. It should have a 5/16, or 3/8" keyway. It's back to the drawing board for this one.
Put it in the dyno! Start a ‘baseline’ knowledge base of these things out of the box….
With a 20mm crankshaft the drive clutch doesn't fit.
@@butchs.4239 such things don’t prevent RBG from making it work lol