Can somebody please tell me how I can identify G Heads?

Thanks,

Ray

That would be great but I live in Florida.  LOL!   I have never heard of a 471  head .  Can you tell me more about them?  Thanks, Ray

According to John Mummert's site, the 471 heads were used on Ford trucks that were equipped with the 292 and Mercurys that were equipped with a 312/w 2-barrel carburetor. They have the same intake valve and combustion chamber sizes as the 1957 F-code supercharged 312. You can find this information on ford-y-block.com.

I have a pair of small G heads removed from a 1957 Ford PU 272 engine.  The engine was from a Higgins speed boat.  I would assume low hours on these vs a road vehicle.  They appear to be in good shape, however, I’m in the Denver Colorado area.  You might try the Facebook early Thunderbird and Y-block groups to find heads closer to you.   The 113 heads would be a good option as they are on many late 1950s and early 1960s Fords with Y-block engines.

ADDITIONAL INFORMATION -

http://yblockguy.com/techtips/cylinder_head_mods.html

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