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MUSTANGROB · 05-24-1999, 02:55 PM

I have read in a "MUSTANG & FORDS MAGAZINE" article that 1969 thru early 1974 351W heads had larger valves than 289/302 versions. All heads produced after 1974 have the small valves.

05-24-1999, 02:55 PM	#3
MUSTANGROB Registered Member Join Date: Jan 1999 Location: CHARLOTTE, NC, USA Posts: 25	I have read in a "MUSTANG & FORDS MAGAZINE" article that 1969 thru early 1974 351W heads had larger valves than 289/302 versions. All heads produced after 1974 have the small valves.