YES NO problems
yes they will i just put a set of double hump heads on my buddys 94 z 71 and they worked great.
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.
I wants to now if double hump head fit on a 1995 stock 350 engine?
Yes they will. The bore is 3.785 so they wont hit
Yes they will, but 305 heads have a smaller combustion chamber so it may raise your compression ratio.
no I respectfully disagree. I am running 305 Chevy TBI heads on my 1971 Chevy 307 and all is very well.
Yes, they should fit ok. 305 heads should bump up the compression a little.
Unless they are huge domes that were custom made for a larger chamber head they should fit. Any off the shelf dome piston will work with double humps many cars came factory with them
No, Oldsmobile 307 7A heads cannot fit on a 403 engine. The Oldsmobile 307 engine has a smaller bore and different combustion chamber design compared to the 403 engine. Additionally, the 403 engine has larger cylinder bores and requires heads that are specifically designed for that engine to ensure proper fitment and performance. It is crucial to use compatible components when modifying or building an engine to avoid issues and ensure optimal performance.
yes, they should, up to 87.
YES, the 5A heads FROM A 307 can be installed on a 403. The307 heads are a BETERR choice than the 67 to 72 Olds 350 heads. The 307 heads have similar sized intake & exhaust ports to the stock 403 heads. The 307 heads have a much smaller combustions chamber at arounf 67cc. This alone will raise compression to around 9.5:1. The only down side is the 307 heads have much smaller valves. You really must get larger valves installed into the 307 heads. The stock 403 valves will fit with some machining (of course) and you'll have a high compression 403. Get some port work done while you are at it & a little polishing too. Buy a new intake & have it machine & port matched to the intake & a middle of the road Lunati cam. This will result in a 403 producing around 330 HP. I know it works because this is exactly what I did. Enjoy your Olds, Mark
peugeot 307 how to fit fan belt replacement