1970 to'72 2 or 4 bolt main. You need the code stamped on the pad in front of the passager head to find out what car it came out of. I have 3 of these engines for sale if your interested. They came out of a Monty Carlo, Chevelle & a motor home. All are 2 bolt main, 330hp 402's. Also '68 396 short block std. bore. Plus many big block and some small block parts, heads, intakes, etc.
Port Perry Ontario Canada