This subjuct gets touchy.Yes I have several cars in the 8s with stock 400 blocks.They all are around 3,500lbs.Hit them with 250-500 extra on the hose.If the motor is happy it could care less what block you have.I DONOT hard block or use girdles.I feel that is the cause of some of the cracks in the mains and such.
SS/AA have run new blocks since around 94.Yes there is a hugh differce in a stock block and the new ones.Lenny

Last edited by 8secDart; 10/02/09 08:02 PM.