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Not that well. The valves are too small for high performance use, and the combustion chambers were too big.
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∙ 12y ago
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Can 400 heads work on 350?
yea its the same thing as putting a 350 head on a four hundered . the 400 heads just have seam holes that arent in a 350 scb
Will 350 heads fit a 400 block?
350 heads will bolt to the 400 block. They will need to be drilled for the "steam ports" in the 400 block.
What small block Chevy heads can you use on a305 4bbl Chevy motor?
305 heads of course, 350 heads will fit for sure and possibly 400. obviously no big block heads will fit. a 305 with 400 heads gets you a little over 352. 350 with 400 heads is a 383. add and divide
Will cylinder heads from a gm 350 fit on a Pontiac 400?
No.
Will there be a power gain if you put 400 heads on a Chevy 350?
Probably not. 400 heads came with 1.94 intakes and 1.5 exhausts, and many of them had 76cc chambers. If the 350 has smaller chambers the 400 heads would lower the compression ratio, thus reducing power.
What is the size in cubic inches of a Chevy 350 bored 060 over with 350 crank and 400 heads?
Why 400 heads? They are notoriously bad flowing heads without much modification the engine would be about 360 cubic inches, but the heads have nothing to do with the size of the engine.
Will a 350 sbc tune port injection fit in a 400 sbc?
It should work well.
How do you get 400 hp from a 350 Chevy?
Good compression, good heads, good cam.
Will Honda rancher 350 carburetor work on Honda rancher 400?
No, a Honda Rancher 350 carburetor will not work on a Honda Rancher 400. The difference in the sizes of the 350 and 400 carburetors are not compatible with each other.
350 vortec heads on a 400 small block?
You must drill the steam holes in the heads to coincide with the ones in the block or it will overheat QUICK!!!
Will parts from a 1979 305 5.0 fit on a 350 or 400 block?
all external bolt on parts will work. heads, intake, dist, cam, pan, timing chain, oil pump etc. should all work as well. most internal parts will not work though. such as pistons crank rods and block. The 305 crank will fit the 350, but will need to be balanced. i would not use the 305 heads due to small compression chambers.
Can you put 400 Chevy heads on a 350 Chevy engine?
noNEW ANSWER: Sorry but the above answer is wrong. The only thing that is different on the 400 heads is that they have steam holes in them and it don't matter if they are blocked off by the head gasket. And YES they will bolt right on the 350 block with no problems.
