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Johns70 · 12-11-2002, 01:38 AM

actually the 74 pickup heads casting number 781 are some of the most sought after heads because of the they are open chamber with smaller cc's and they can fit the big valves in them and can be ported to flow just as good or better than a stock rectanglur port heads.

12-11-2002, 01:38 AM	#3
Johns70 Registered User Join Date: Dec 2001 Location: Spring Creek, nevada. U.S.A. Posts: 456	actually the 74 pickup heads casting number 781 are some of the most sought after heads because of the they are open chamber with smaller cc's and they can fit the big valves in them and can be ported to flow just as good or better than a stock rectanglur port heads. __________________ 69 chevy short wide box project 70 GMC jimmy project