Many people have proven that this motor too can do well if built. So if you have a 307 you can get it to be a angry little fúcker without forced induction too.
Had a 307 when was a kid, dual exhaust, 4 barrel, .055 jets, no fouling of plugs. rev to 5k slide foot off clutch, 4.10 gears light up the mud grips a dozen times never hiccupted once. Drove it from Houston to Kerrville dozen times at 90 to 100 mph, same thing in Army . Going to Ft Sill, Ok. 90mph 2 hrs at a stretch... It's over 200miles off farmland from Houston to Dallas..... All that being said The 307's big flaw were the pistons. The only piston you will probably see that is weighted,two steel bars are cast in the pistons so the 3 7/8 pistons will balance on a 327 crankshaft. Chevy was too cheap to make a new crank so they used the 68-69 327 crank. Super cheap approach iam looking at one now out of mine, flabbergasted! With a good aftermarket rotating assembly the engine should be fine.
It's expencive but the best combo Chevy combo it. 3.90 pistons 3.25 small journal factory forged crank 350 vprtec heads shaved to 58cc or 416 305 heads. Scoggin Dickey TPI conversion FIRST TPI 350hp 327 cam or comp cl12-268-4. Use an x pipe fallowed by magnaflow through X catback. If you use 305 heads and 52mm throttle body with tpi 350 injectors it will hit 7000rpm. If you use 350 heads and use 6.0ls injectors it will spin 10,000rpm. It's going to try to idol on the air to fuel ratio of a 350 you need the 7" brwak booster to regulate it and bring it down to the air to fuel ratio of a 327. Its a naturally asperated engine but performs like its supercharged.
Ps. The the easiest way to do this is find an engine builder tell him you want to take a 350 VORTEC block and use 3.90 pistons with a 3.25 crank built for alcohol then use the stuff for a supercharged TPI 305 to regulate it to pump gas.
Actually the Chevy 307 in our '69 Chevelle was rated at 200 HP and 300 ft lbs, GROSS. The 307 Olds was available at 140 HP and also at 180 HP NET, so in reality the output of each basic 307 (Olds & Chevy) is nearly identical, and the VIN 9 Olds actually makes MORE power than the Chevy. The SBC was only ever available in low-performance, economy 2-bbl versions, and the VIN 9 Olds had a 4-bbl Q-Jet and was always paired with 3:73 gears w/ Posi and a 200-4R, which would absolutely leave our stock Chevelle in the dust (TH350 and 2.73 gears).
@@dcg748 you’re right on a lot of info you stated but sir to say the olds is stronger than the sbc is just blasphemy man, the olds #5 #6 #7 #7 A heads can’t outflow a factory set of vortec heads,you ever see any built olds 350’s on the dyno? They put out decent power at best but not like the sbc.
@@chevrosmith ...Facts are pretty far from blasphemy. I'm a fan of everything GM, and I'm not choosing a side/brand. Simply stating the facts for 307 vs 307. Flow rates for various other SBO heads, or Vortec heads that didn't exist for over two decades after the last 307 Chevy left the assembly line, have no bearing on the issue or my original comment. I'm not saying Olds is better than Chevy, I'm simply stating that the two engines output essentially the same or similar amount of power if you actually compare them net vs net or gross vs gross, rather than gross vs net, or based on no facts at all. To call the Olds underpowered is to call the Chevy underpowered. And as I mentioned, the 180 net HP VIN 9 Olds literally & factually had a higher output than the 200 gross HP Chevy, as the "taxable horsepower' - as stated by Chevrolet - brought the net HP of the 307 SBC well below 180 net HP. And when you factor in the rest of the equation (driveline, gearing, weight, etc.) then an '80s Hurst/Olds or 442 with the VIN 9 Olds 307 was in every way faster than a '69 Chevelle Malibu with a stock 2-bbl 307, a TH350, and a 2.73:1 open differential, etc., and very likely faster than any 307 Chevy application offered in 1969, be it a Chevelle or a heavier pick-up, etc. I'm fully aware of the reputations of both engines, and of both engine families, I'm just clarifying the reality of 307 vs 307.
@@smokeygasser4037 yes I knew that a 307 is a 283 block with 327 crank seems like Darrell didn't . My point was why would a 283 be better than the 307 when its block is the same bore.
My 307 didn't know it was considered a lousy engine, it didn't even know it wasn't as LZXX, it didn't care, and for a small v8 it revved pretty darn good, the rebuild version will be better, and it still won't care.
@@michaelmoyer7466 Mine did exactly the same thing. When I got it out of a totaled 71 nova, it already had 100k. I did a super down and dirty re-ring bearing job. Threw in a stock replacement cam, performer intake and Holley 1850 600 cfm carb, and HEI ignition. I bracket raced that 8.0 230hp 307 for about 12 years, in three different cars. Put on at least another 100k, and THOUSANDS of drag strip passes. When the blowby started pushing past the seals, badly, I retired it. I did the same basic thing for a couple of 305's and a 74 stock 350. They just didn't care they just kept going, and going. One last thing. One day while at my local drag strip, with the hood open, I made the mistake of mentioning to a friend....." It might be cool to replace this 307, with one of those NEW LS motors that just came out". Next thing I know, it wouldn't start. Oh no! about an hour later, I found that the factory HEI Module, had quit. I replaced it, it started right up, and I apologized profusely for the insult. I got one time trial before eliminations. The race was a $1000.00 to win. I won the race with my 16 second 307, thm 350, 2.29 rear 78 Mailbu. It wasn't the first win, or the last. I NEVER made that mistake again. That was over 25 years ago. The 307, just DON'T CARE!
A blower on a 307....THAT'S NUTS...and I love it!! I suggest you lie to people and tell them it's a 350, they will praise you for your efforts.
Many people have proven that this motor too can do well if built. So if you have a 307 you can get it to be a angry little fúcker without forced induction too.
amen...say it again!!!!!
I have two 307's that im going to rebuild. Why? Because it pisses some people off.
Had a 307 when was a kid, dual exhaust, 4 barrel, .055 jets, no fouling of plugs. rev to 5k slide foot off clutch, 4.10 gears light up the mud grips a dozen times never hiccupted once. Drove it from Houston to Kerrville dozen times at 90 to 100 mph, same thing in Army . Going to Ft Sill, Ok. 90mph 2 hrs at a stretch... It's over 200miles off farmland from Houston to Dallas..... All that being said The 307's big flaw were the pistons. The only piston you will probably see that is weighted,two steel bars are cast in the pistons so the 3 7/8 pistons will balance on a 327 crankshaft. Chevy was too cheap to make a new crank so they used the 68-69 327 crank. Super cheap approach iam looking at one now out of mine, flabbergasted! With a good aftermarket rotating assembly the engine should be fine.
Even Blown,the 307 was the sickest Chevy engine ever built!! 😖
Didnt know the 307 was a thing.. figured it was a 302 bored 5 over.. but thats a lotta boring in each hole..
@@Z-Ack You must be kidding right?
@@ignaciomontano9183 lol
perfect engine for super charger
The best a 307 has ever had for once it's alive
We cant all have a turbo ls.....but so long as he can at least smoke one tire, than he will have fun....!!!! And thats all that matters
Now if they all came from gm like this one they would have an entirely different reputation
I have one i was gonna chunk it u have now just inspired me to keep it
It's expencive but the best combo Chevy combo it.
3.90 pistons
3.25 small journal factory forged crank
350 vprtec heads shaved to 58cc or 416 305 heads.
Scoggin Dickey TPI conversion
FIRST TPI
350hp 327 cam or comp cl12-268-4.
Use an x pipe fallowed by magnaflow through X catback.
If you use 305 heads and 52mm throttle body with tpi 350 injectors it will hit 7000rpm.
If you use 350 heads and use 6.0ls injectors it will spin 10,000rpm.
It's going to try to idol on the air to fuel ratio of a 350 you need the 7" brwak booster to regulate it and bring it down to the air to fuel ratio of a 327. Its a naturally asperated engine but performs like its supercharged.
Ps. The the easiest way to do this is find an engine builder tell him you want to take a 350 VORTEC block and use 3.90 pistons with a 3.25 crank built for alcohol then use the stuff for a supercharged TPI 305 to regulate it to pump gas.
Don't do it man, to much money for to little reward. Those 307s never made much power anyway. Just buy a 350.
@@KocFen chill bro they can make close to 400hp easy
@@chevrosmith No they can't. That's why I said not to do it. 307s aren't meant for power, they're an economy engine.
Ok... Thats dope
Impressive if it is a 307
Damn that thing sounds wicked. Kinda sounds like a trex if you listen closely lol. But hey its the king of the beast right!
How many horses I'm curious
How much power you making?
What's the best super charger for a 307 and cam
how much hp very nice
Stock 307?
How much to build me this same thing? Where are you located?
can you build me one if so how much
Badass
Embarrassed to say I forgot about the 307 chev…..I was thinking Oldsmobile…..Any similarities?
It's a large journal version of the 327 crank
Besides bore & stroke none the Chevy 307 makes the more power of the 2. Cause that olds 307 is the definition of underpowered
Actually the Chevy 307 in our '69 Chevelle was rated at 200 HP and 300 ft lbs, GROSS. The 307 Olds was available at 140 HP and also at 180 HP NET, so in reality the output of each basic 307 (Olds & Chevy) is nearly identical, and the VIN 9 Olds actually makes MORE power than the Chevy. The SBC was only ever available in low-performance, economy 2-bbl versions, and the VIN 9 Olds had a 4-bbl Q-Jet and was always paired with 3:73 gears w/ Posi and a 200-4R, which would absolutely leave our stock Chevelle in the dust (TH350 and 2.73 gears).
@@dcg748 you’re right on a lot of info you stated but sir to say the olds is stronger than the sbc is just blasphemy man, the olds #5 #6 #7 #7 A heads can’t outflow a factory set of vortec heads,you ever see any built olds 350’s on the dyno? They put out decent power at best but not like the sbc.
@@chevrosmith ...Facts are pretty far from blasphemy. I'm a fan of everything GM, and I'm not choosing a side/brand. Simply stating the facts for 307 vs 307. Flow rates for various other SBO heads, or Vortec heads that didn't exist for over two decades after the last 307 Chevy left the assembly line, have no bearing on the issue or my original comment. I'm not saying Olds is better than Chevy, I'm simply stating that the two engines output essentially the same or similar amount of power if you actually compare them net vs net or gross vs gross, rather than gross vs net, or based on no facts at all. To call the Olds underpowered is to call the Chevy underpowered. And as I mentioned, the 180 net HP VIN 9 Olds literally & factually had a higher output than the 200 gross HP Chevy, as the "taxable horsepower' - as stated by Chevrolet - brought the net HP of the 307 SBC well below 180 net HP. And when you factor in the rest of the equation (driveline, gearing, weight, etc.) then an '80s Hurst/Olds or 442 with the VIN 9 Olds 307 was in every way faster than a '69 Chevelle Malibu with a stock 2-bbl 307, a TH350, and a 2.73:1 open differential, etc., and very likely faster than any 307 Chevy application offered in 1969, be it a Chevelle or a heavier pick-up, etc. I'm fully aware of the reputations of both engines, and of both engine families, I'm just clarifying the reality of 307 vs 307.
Cast crank?🤣
How is that possible
Where did dat motor stand come from I need one
I bought one a couple months ago. It was listed as a 350. Think I’ll rig up one of the oem Eaton superchargers on it.
Used to street race 307s all night long. Stayed together tach pegged. Seemed indestructable.
Why would you waste time and money on a 307? You would be better off with a 283 or a 327.
My question is what makes a 283 better than a 307.
@@michaelmoyer7466 a 1/4 😂
You do realize that a 307 is a 327 and 283 combine parts
@@smokeygasser4037 yes I knew that a 307 is a 283 block with 327 crank seems like Darrell didn't . My point was why would a 283 be better than the 307 when its block is the same bore.
What is a blower drive?
Your mom behind the wheel..
uh...why?
Because no one else is doing it. It's fun to be different.
flint lock why not
1967 Chevelle LSx ...says the poser who put an LS crate engine (engine that someone else built) in a 67 Chevelle
@@number3665 say it again...and again...I don't think they heard you.....
Chevy Right?
@Brian Robinson like yourself?
@Brian Robinson thats what your dad said about you
Ran 307 street motors in 70s budget red light racing rpm extreme . Stayed together all night long.
the 307, the worst V8 engine chevy ever built. It has the same bore and stroke as the 250 six. BLAH.
You mad bro?
No. The mid 70s 262 and 267 SBCs were really bad.
A 307 is a lousy engine. It's a 327 crank in a 283 block. Nothing special here. They don't rev very well.
My 307 didn't know it was considered a lousy engine, it didn't even know it wasn't as LZXX, it didn't care, and for a small v8 it revved pretty darn good, the rebuild version will be better, and it still won't care.
My 307 didn't know it was lousy. It didn't know it wasn't a good 6000rpm revving engine either.
@@michaelmoyer7466 THAT'S EXACTLY WHAT I AM TALKING ABOUT!!!!
Mine ran good even when it started smoking (valve seals ) it was strong
@@michaelmoyer7466 Mine did exactly the same thing. When I got it out of a totaled 71 nova, it already had 100k. I did a super down and dirty re-ring bearing job. Threw in a stock replacement cam, performer intake and Holley 1850 600 cfm carb, and HEI ignition. I bracket raced that 8.0 230hp 307 for about 12 years, in three different cars. Put on at least another 100k, and THOUSANDS of drag strip passes. When the blowby started pushing past the seals, badly, I retired it. I did the same basic thing for a couple of 305's and a 74 stock 350. They just didn't care they just kept going, and going. One last thing. One day while at my local drag strip, with the hood open, I made the mistake of mentioning to a friend....." It might be cool to replace this 307, with one of those NEW LS motors that just came out". Next thing I know, it wouldn't start. Oh no! about an hour later, I found that the factory HEI Module, had quit.
I replaced it, it started right up, and I apologized profusely for the insult. I got one time trial before eliminations. The race was a $1000.00 to win. I won the race with my 16 second 307, thm 350, 2.29 rear 78 Mailbu. It wasn't the first win, or the last. I NEVER made that mistake again. That was over 25 years ago. The 307, just DON'T CARE!
GARBAGE