This is easy. If you don’t want to check for piston to valve clearance, use a stock car or truck cam. Then you don’t have to check. If you like to tinker and hot rod your motors like I do, then for some cams, you will want to check the clearance. These old style inline six motors respond to all of the same hot rodding things that other motors respond to. Better breathing, more cam, more compression, more carb, changes to the ignition curve. All kinds of things. But there is a limit to what you will be able to drag out of them torque and/or horse power wise. Do these kinds of modifications change some of the running parameters of the motor, sometimes. That should not stop you from tinkering if that’s what you like to do.
Hot rodding one of these motors a waste of time? Hardly. It’s actually a great deal of fun truth be told. Think you can build a stock 235 or 261 that will out run one of my modified motors, now that’s a waste of time, lol.
Last edited by Dragsix; Thu Mar 26 2020 10:04 PM.