Just wandering what has to be done to a 400 to put a Hydraulic roller cam in it. Mainly a LT4 Hot cam? Im thinking i might start on the motor this summer with a simple rebuild with a Fel-Pro Max Torque rebuild kit. I got a buddy who works for NAPA and can get me the kit fro 500 cdn coin. here the Link http://www.sdpc2000.com/cart.asp?act...id=225&pid=560 However i don't like the cam. I would like the LT4 Hot cam instead. Slap on some World Sportsman IIs and go running with my TPI setup. I could only imagine the torque numbers a setup like that could make. Bye bye 9-bolt hello 12-bolt

 

Nothing needs to be done to the block. You'll of course need retrofit roller rockers. The one thing that most people forget is to get a stronger timing cover, the roller cam will be held in place by a thrust bearing there, and most cheap ones will push out with the pressure, and screw up all kind's of expensive stuff.