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Yes, I've got a 307 running 305 heads in my old truck. I read somewhere it's actually worth a few extra horsepower
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∙ 16y ago
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Can you put a set of 307 heads on a 305 block?
Yes you can.
Do 305 and 307 small block Chevy engine heads fit a 1964 283 cu in block?
Yes, they should fit ok. 305 heads should bump up the compression a little.
Will Chevy 307 heads fit on a Chevy 305?
Yes, they will fit on the block. The larger combustion chambers of the 307 heads will probably reduce the compression ratio by a fair amount, reducing power output.
Will Chevy 305 heads fit on a Chevy 307?
Yes they will, but 305 heads have a smaller combustion chamber so it may raise your compression ratio.
Will parts from a 305 motor fit on a 307 motor?
no I respectfully disagree. I am running 305 Chevy TBI heads on my 1971 Chevy 307 and all is very well.
How can you tell 305 from 307?
This is 305:|And this is 307:|
Will 307 heads bump up compression on 1970 350 block?
it all depends on the head chamber volume of the 307 heads and the 350 heads that are being replaced. if the 307 heads have a smaller chamber volume then yes, they will bump up compression.
Will a 1987 Chevy 305 fit in a 1966 Chevy PU and where would I get the motor mounts?
Yes, a 283, 305, 307, 327 etc will fit. You should be able to use small block motor mounts from 1966
Will Chevy 307 pistons fit on Chevy 305?
307 pistons are 3.875" diameter. 305 pistons are 3.736". It might be possible to bore a 305 large enough to accept the 307 pistons, but the wrist pin location would be .230" off because of the different stroke. In short, no.
Will 350 vortec heads fit on a 307 block?
Yes they will. The bore is 3.785 so they wont hit
WHich motor is better 305 or 307?
There is basically no difference. 305 is a Chevy engine and the 307 is a Cadillac engine. They are both the same and assembled by same company Well, on the other hand, it depends on how you look at it. The 305 Chevy is a 265 stroked with a 350 crank. The 307 Chevy is a 283 stroked with a 327 crank. In theory, the 305 should produce it's best torque at a lower rpm than the 307. However, the 307 should be able to rev higher and produce a higher peak horsepower. Kinda depends on what you need it for. There is also a 307 produced by Oldsmobile that is a V8 engine. It shares no other commonalities with a small block Chevy.
Can Chevy 306 heads be used on a 327 Chevy engine?
Chevy didn't make a 306. A 302, 305, and 307, all of which will work just fine.
