I have several 454 long blocks for sale. Mark 4, gen 5 and gen 6. They include balancers, oil pans timing covers and valve covers. I will guarantee these to be rebuildable. If any would happen to have a bad crankshaft, block or head, I will replace that part.
Mark 4 $750
gen 5/6 $1000

Do you have a gen IV 375hp 4 bolt main available?

magnums or standard bbc?

Me too

I do have MK4 4 bolt engines. They are all truck engines and have the small oval port heads. I do also have short blocks available if you have the heads that you need.

Could you send me the serial numbers so I can cross reference to see if my "Hi-Perf heads and intake will bolt on and work with those shorts.
Thanks.

The short blocks that i currently have are casting# 10237297. They are std deck gen6 454's.