69-72 c10 350

[Yamariv]

Originally Posted by special-K

Sure there is. Just do as you planned, flat tops, better heads, and cam. Those were the things that defined "smog motor". Anything else is added externally.

So the 74 block is worth getting you think? I was going to rebuild it anyway over the next couple years.

[SCOTI]

Originally Posted by Yamariv

So the 74 block is worth getting you think? I was going to rebuild it anyway over the next couple years.

Yes... The older blocks are worth rebuilding/tweaking.

'Newer' blocks from the Vortec/L31 (96-00) era are decent as well since they have the roller cam provisions & 1pc crank seal set-up (less leak prone).