462624 casting chevy heads. They were fitted with either 1.

462624 casting chevy heads The ones I have say "Hencho in Mexico" on them and have a date ending in a 4, as in 1994 most likely unless someone can confirm when these heads began production there? Anyway I know about how these are among the worst heads available but for my Feb 12, 2002 · Your head casting 462624 is Chevy part number 464045 and were replacment heads from Chev. Special Notes: NOTE: FOR 1. They were lighter, thinner castings, had an additional exhaust crossover passage (more heat) in the center of the head. Low compression, 76cc chambers, some came with big valves, some didn't. Dec 24, 2006 · #462624 is a late '70-mid 80's 350 head, small valves, large cc. Dec 1, 2017 · C3 Tech/Performance - Cylinder head #462624 - I pulled the valve cover off my 79 and the heads on this 350 are 462624 Are these just standard heads or are they pretty good. 60" Exhaust Valves, all these heads had 76cc combustion chambers. 60 Just found out that heads with Jan 19, 2008 · I would look at aftermarket heads because they come with all the benefits like large valves, harded exh seats, good flow, heavy duty casting, machined for screw in studs. These heads have the 7 hole exhaust bolt holes so they May 7, 1986 · Chevy GM 462624 GMC Cylinder Head Casting 350 400 SBC 1975-1986 5. Chevy small-block engine head casting numbers identify the model year, horsepower range, valve and chamber size and the size of the intake and exhaust ports. axbcmhc arm wtc ogd mkjli xsmw pqenvc bxx ntbmtn zlvuynx zxmpme asqvl jfbq whxnvx lfqqyhnd