I see, in 1978 PMD stopped casting Pontiac engines. And in 79 it was the last year a Pontiac V8 was used in a Pontiac. Now we had a bastard 301 V8 but it was junk and had little to do with the real V8 or going fast.

The 455s are nice, but some suffered from core shift and had thin walls. The 400 tho can be stroked to 467 cubes and spins easyer then a 455 with a 3" 1/4 main, see the 455 has a 3 1/4 main and the 400 has a 3" main, so less area= less friction.

The 455's to have are the SD and HO engines, they had extra webbing and dry sump connections, it was a race engine with all the corections of the older blocks, they came late 1973-1974.

Tho in the last few years PMD fans now have lots of aftermarket blocks that can be stroked to over 688cubes, and mid 05 a set of heads called tiger heads that outflow RAM AIR V heads, it's good to be a PMD guy today then it was in 1970.

Also another thing I like is that Pontiac didnt do coded numbers on it's engines to find out what size it was. All V8s besides the 389 have the size cast into it in 2 places, one is the drivers side of the block tward the front, and the other is under the belly pan on the lifter vally.

I allways best my Chevy friend when we are at junk yards, he takes his book, a rag and some gum out, and I bring a rag lol.

If more people knew the power to be had from Pontiac engines, and not the old rap that sticks with it, i'm sure more Pontiacs would be built, and maybe you would see as many 70-72 Pontiacs as you see 70-72 Chevys at car shows, but chevys still have Pontiacs beat in the price wars, building a Pontiac is like builing a BB Chevy in price.