Earliest dated 074 ZL-1 heads??? First L-88??

[LS6 RAT]

First '69 model L-88's were built around early Sept 1968. You have one of the earliest casting dates known. The L-88's in the 1968 model year did not use these heads, as a matter of fact early '69 model L-88's did not use these heads, until after April 1969. Yes, the ZL-1 Corvettes (that are documented as original) have build dates after June 1969. Yes, these heads were installed in late 1968, they were installed on the earliest ZL-1 Camaros that were delivered to Fred Gibb Chevrolet on Dec 31st, 1968.