7A and 5A Heads
I have an ''85 Cutlass Supreme and I''m wanting to do some minor performance upgrades on the 307. The motor currently has 7A heads.Will a set of 5A heads bolt right on to replace the stock 7A heads or am I pretty much stuck withwhat is there already? Edited by: cutty85
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alexf20c
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Sep 3, 2004 10:05 PM




