YEESSS!!!!!! My apologies, I had to go look at mine. # 039 is a 4-bolt block number. Mine are also #487 heads! They are 71-72 LT1 Corvette head. For an iron head, they flow pretty good. More importantly, they are a strong head. not prone to cracking.
@@randyszerencse7320 Hey Randy!! I should do a video and give a little more history of this engine. It actually came out of a late 80s Chevy Suburban. We are thinking these might be 993 or 487 style of heads.
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YEESSS!!!!!! My apologies, I had to go look at mine. # 039 is a 4-bolt block number. Mine are also #487 heads! They are 71-72 LT1 Corvette head. For an iron head, they flow pretty good. More importantly, they are a strong head. not prone to cracking.
Hey! Montana Randy here, just got back from Bozeman. Those look like LT1 heads. Is the last 3 of the casting # 039?
@@randyszerencse7320 Hey Randy!! I should do a video and give a little more history of this engine. It actually came out of a late 80s Chevy Suburban. We are thinking these might be 993 or 487 style of heads.