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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.


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


350 intake manifold fit your 400 Pontiac?

no


What is the difference between a Pontiac 400 and a Pontiac 455?

The Pontiac 400 has a bore of 4.12 and a stroke of 3.75. The Pontiac 455 has a bore of 4.15 and a stroke of 4.21. The 455 cylinder heads will have larger combustion chambers than the same year 400 heads to achieve comperable compression ratios on the larger engine. The blocks are physically the same size, but 455 has larger main bearings than the 400. 455=3.25 400=3.00, so crankshafts will not interchange. Cams,heads,intakes,exhaust,connecting rods,push rods,rocker arms...etc will all interchange.


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 a 350 after market intake manifold fit 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 cylinder is the number 1 cylinder on a 1972 Pontiac gto 400?

Front cylinder on the drivers side.


What type of Chevy Cylinder-Heads are 399899 1or y and 3873487 x?

Cast iron for a 307 or 350 unless they have 1.72" intake valves then its a 400 head


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 Chevy 350 intake fit a Chevy 400 motor?

It depends on whether or not the intake ports match on the cylinder heads. You can get that info from one of parts exchange guides you may find online.


How do you get 400 hp from a 350 Chevy?

Good compression, good heads, good cam.