'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.
I think of a 307 as a stroked 283. A 350 is preferable and probably easier on gas while providing more horsepower. Only an opinion, so take it for what its worth.
I think of a 307 as a stroked 283. A 350 is preferable and probably easier on gas while providing more horsepower. Only an opinion, so take it for what its worth.
Good way to put it. There is absolutely nothing wrong with a 307 Chevy- I would like to see it in an older car over a useless boring 350 ANY DAY. The 307 and 283 share a 3 7/8 bore but the 283 has a 3 inch stroke whereas the 307 has a 3.25 stroke. They have to be dirt cheap though.
I contacted the seller and he said that all the accessories and externals are taken off the engine (he reused them) except for the carb and intake. Why doesn't he post pictures of it's current state? I'll pass.
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.
Simply put a 307 is a 283 with a 327 crank. I have owned two of these great engines, after all it is a Chevrolet small block. They never came in any high performance guises and that is why " some people" give them a bad rap. There is nothing wrong with a 307 and you can do anything to a 307 that you could do to any other Chevy small block. I have never heard any compliants about 283's so why would anyone bad mouth a 307. It is just plain silly to knock a 307 because after all, like i said earlier........ it is a 283 with a 327 crank!!!!!!! I would agree though, that if you are looking for power, of course a 350 will generally give you more of it than a 307 that is in the same general condition. After all CUBES TALK. If you are just looking for a good reliable motor and do not plan on going the hot rod route, then for goodness sake use the 307. I can not see how a 350 would deliver better gas milage than a 307, that makes little sense to me. That is assuming both engines are in equal condition and tune. Cheers. George.
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1957 Pontiac Pathfinder Deluxe sedan restored 261 six
1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8
I'd take a 307 over a 305 any day. Better bore / stroke ratio (3.875" × 3.25" vs. 3.736"× 3.48") plus they have high nickel blocks. Take the heads off a 305 H.O. and put them on a 307.
Any money spent on a 307 could also be spent on a 350. Since 350s are so common, the pistons are a stock item in the aftermarket and are cheaper than the specialty smaller 283/307 pistons.
307s came out for 1968 and as such carry the larger journals on the crank & rods, so the cranks are actually the late 327 large journal items.
The 307 light duty truck engine really is the same as the passenger car engine. They were produced 1968 through 1973. There was also a medium duty truck version produced for 1968 only, for series 40 Chevrolets & series 940 Canadian GMCs.
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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.
In garage, 296 cid inline six & TH350...
Cam, Toronto.
I don't judge a man by how far he's fallen, but by how far back he bounces - Patton
I'd take a 307 over a 305 any day. Better bore / stroke ratio (3.875" × 3.25" vs. 3.736"× 3.48") plus they have high nickel blocks. Take the heads off a 305 H.O. and put them on a 307.
Any money spent on a 307 could also be spent on a 350. Since 350s are so common, the pistons are a stock item in the aftermarket and are cheaper than the specialty smaller 283/307 pistons.
307s came out for 1968 and as such carry the larger journals on the crank & rods, so the cranks are actually the late 327 large journal items.
The 307 light duty truck engine really is the same as the passenger car engine. They were produced 1968 through 1973. There was also a medium duty truck version produced for 1968 only, for series 40 Chevrolets & series 940 Canadian GMCs.
Hello Cam, really good point with the high nickel content engine blocks in the 307 engine. Total agreement with your comment on the 305's, i have never been able to shake all the bad memories about 305's being camshaft eaters. I have always loved the 307 and one of the many reasons i did is because others did not. I remember a cousin of mine owning a 1969 Nova with a 307 and a three speed stick back in the early to mid seventies. I was just dumbfounded at the get up and go this car had with just minor changes ( headers, duals, intake, small Holley) The way my cousins 307 performed, you would have thought it was a much bigger engine. Cam what is the update on your 292 inline six hipo buildup? Cheers. George.
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1957 Pontiac Pathfinder Deluxe sedan restored 261 six
1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8
I'll take a 307 anytime over a 350. i wouldnt mind having one right now for my 68 GMC truck, would be factory correct, the way it should be.
isnt a 350 kind of like a 57 chevy, everyone has one, highly overrated and boring as hell
I would never call a 1957 Chevrolet overrated, nor would i ever call it boring and i know that not everyone has one because many folks can not afford one. The reality is that the 1957 Chevrolet is the most recognized car in the world and there must be a good reason for that........ many many good reasons. That fact that it was solid built, reliable, dependable and super attractive to countless millions over the last 55 years should mean something. No other car means so much to so many people. It sounds like you have never had one, what a pity. George.
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1957 Pontiac Pathfinder Deluxe sedan restored 261 six
1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8
Darryl, I would check the numbers. The exhaust manifold does't look like a 307 manifold. It looks to be later 305 or 350.
Also, I just noticed it looks to be a 3/8" line up from the fuel pump. A 307 would have 5/16" fuel line because it used a small carb.
I'm "out" anyways Carl. The seller should have posted up-to-date pictures of the engine as it sits now (basically a pan, block, intake and carb). I wanted more of a cheap "turn key" engine for the '63 Impala.
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.
I'll take a 307 anytime over a 350. i wouldnt mind having one right now for my 68 GMC truck, would be factory correct, the way it should be.
isnt a 350 kind of like a 57 chevy, everyone has one, highly overrated and boring as hell
I would never call a 1957 Chevrolet overrated, nor would i ever call it boring and i know that not everyone has one because many folks can not afford one. The reality is that the 1957 Chevrolet is the most recognized car in the world and there must be a good reason for that........ many many good reasons. That fact that it was solid built, reliable, dependable and super attractive to countless millions over the last 55 years should mean something. No other car means so much to so many people. It sounds like you have never had one, what a pity. George.
George, that brought something one of the guys said at a car show this summer. There must have been 6 to 8, 57 Chevys come in the show within 5 min. of each other. One guy says there like 'bellybuttons" everybody's got one!! Then my friend "pipes" up "Naw, theres a Factory down the road still making them. cause there more on the road now. than when GM was making them!!!! I just about split a gut when he said that!! Pete
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Some times I wake up GRUMPY, but today I let her sleep in !!!!!!!!BLACKSTOCK Ont.
I still prefer 327 vs 350. Don't ask me why, I just am that way. Probably the same reason I have always thought 454's were good donors to make 427's out of.
Yes, I know you make the easiest, most power with the biggest displacement but for some reason, I like to take the biggest bore but the shortest stroke for each category.
Since I already stepped into the fire, I might as well say the first thing I thought of when the 307 discussion started was "buy it, put the crank in a 350 block and make a 327!"
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
I still prefer 327 vs 350. Don't ask me why, I just am that way. Probably the same reason I have always thought 454's were good donors to make 427's out of.
Yes, I know you make the easiest, most power with the biggest displacement but for some reason, I like to take the biggest bore but the shortest stroke for each category.
Since I already stepped into the fire, I might as well say the first thing I thought of when the 307 discussion started was "buy it, put the crank in a 350 block and make a 327!"
Me too.....probably why I've hoarded 2 of the 307's, and that how I built the one that is in my 64 custom sport..... Shift it when it stops pulling!
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later...rog
AADD supporting member !!
I'm a collector...not a builder!!Located in sunny central Saskatchewan at the lakehead!
I'll pass.