Early factory G.M. Aluminum small block heads

Blk61409

Well Known Member
Supporting Member 9
Great catch Cecil. I had seen this years ago, but forgot all about it. Still can't believe it runs after years of operation.
 

wristpin

Well Known Member
Digging online several authors say the first factory aluminum factory SBC heads were 1986 L98 Corvette 14101128. I looked in several different listings too.
Also production line aluminum heads...
1999 and up....12367713
1997-1998 LS1...12558806 (Gen3)
1999 LS1...12559553 (Gen3)
 
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