1970 291 rec port heads

[JRSully]

I think I have either March or April 291's, 1 head was replaced on my engine prior to me getting it, Be aware that late 70 production 291's can be somewhat hard to find. my orig block was actually cast very late January for an early May 70 build, I have seen this scenario a few times. As 1970 came in, only L78 Camaros and Novas were still being built as I believe LS6 Chevelle production took over as the sole solid lifter BB available in that car (could be wrong) and have to figure that 854 block production was winding down/in stock inventory being used up