BBC · 396 · 427 · 454
Big Block Chevy
Mark IV rat motor. When the small block stops being enough.
396, 402, 427 and 454 Mark IV big blocks share bellhousing pattern with the small block, so the transmission behind it usually carries over. Almost nothing else does — motor mounts, headers, radiator support and hood clearance all change.
What we stock for it
Nothing on the shelf right now
We can still source it. Call the shop and tell us what you are building.