Wish me luck! Magnum 5.9 engine conversion starting today (hopefully)
Have fun with yout Magnum! I've had a lot of fun with mine, so far. It has endured a LOT of abuse.... including my watching the tach needle swing past 6,500 rpm, more than a few times in 1st gear.
However, I must confess that my engine has a mild Hughes cam (but, with .525"-lift) with 300# valve springs (that's 300# open) and aluminum needle-bearing, roller rockers, with thick-walled, heavy-duty pushrods, but stock, hyd. roller lifters, and yes, they ARE H-E-A-V-Y!!!
Good luck with this toy; it's gonna be FUN!!!:cheers: