[JBAIRD]

I had a Keith Craft built custom 408 stroker in SPF #907 and It dyno'ed at 578 HP and 565 pound ft. of torque. The motor had balls and Beleive me when I tell you this!!. Sports man block, so we could only go .030 over and the crank was a 4" stroke. Don't go more than this on the stroke. If you want more cubes you need a 4 bolt SVO block that you can BORE more and still go with a 4" stroke. Most of the 427 strokers you are hearing about are either stock production blocks that are .030 over with a 4.1" CRANK. These stroker motors are awesome. My new stroker is a 418 CID (4"King Billit steel crank and .080 over on the W SVO 4 bolt main block. Huge Brodix Heads. Titanium valves, roller cam,Super Victor intake. Should dyno about 650. GO STROKERS!!!!!!!!!!!!!!!!!!!!!!!!!!!