4wdkc is spot on ^^^^^^
I will give you my 2 cent's , (my last 383 in my k-10), big block guy now.
Scat crank and rods , 22cc d-dish pistons , 0 deck , .041 head gaskets , afr 180 heads , comp 268h cam , with all the other bolt on's , quench motor. Simply bad ass pump gas small block for a...