J
jfb4548
Guest
I have a beautiful 'set' of closed chamber aluminum heads. One is GM part # 3904392 the other is 3919842. They are both date stamped 1967. These heads are glass beaded and have 1 piece Manley stainless steel valves w/ three angle valve job and teflon perfect seals. New Comp. Cams valve springs with H.D. titanium valve retainers and 10 degree locks. also have hardended spring seats inserts. Fresh ready to go make some noise! I did a bit of research on the part numbers and it seems the differance was # 3904392 was a 1967 part with 1.72 Exhaust while 3919842 was 68-69, (even thou it's dated on the head 8-29-67)with 1.84 Exhaust. I don't have any way to measure the exhaust valves, but they both look the same size, and knowing the shop that assembled them for me I'm pretty sure that they are!
Any Ideas as to what they might be worth?
Any Ideas as to what they might be worth?