400 big block

The biggest draw back to a stock 400 is the low comprsion pistons. And the price to upgrade to a high performance slug. There valves are to small for serious performance but there fine for "General Purpose/hi performance" useage. You can get going quick with them, just not blazin the road fast.

There like a big whoppin overboared 383.
the make great strokers
the fit into A bodies easier
Indy "E-Z" heads are made for this big block swap and help greatly with header fitment.