it will be a race motor, and i dont have to spend money on heads. i will use 452 heads max ported heads but i need new valve spings for them and 10° retainers so that will bring the cost down, my plans are to get new heads in the near future (indy ez or 440-1)
so basicly i am trying to get the most out of the motor with a stroker setup just need a cam and rocker arms
My favorite place to look is Lunati .904 lifter solid flat tappet lobes , to get a powerband in the range suggested you need duration around 300* ad , the 3 lobes I see are -
TF63 - 294* ad / 267* @ .050 lobe lift .406 , valve lift 1.5 - .609 , 1.6 - .650 , 1.7 - .690
TF64 - 298* ad / 271* @ .050 lobe lift .413 , valve lift 1.5 - .620 , 1.6 - .662 , 1.7 - .703
TF69 - 304* ad / 277* @ .050 lobe lift .427 , valve lift 1.5 - .640 , 1.6 - .683 , 1.7 - .726
I would use a split profile 1 step larger on the intake side & use a 108* centerline
by comparison the Mopar .590 Purple shaft cam has a 312 ad duration & only .590 lift
So the Lunati will kill the Mopar cam with less duration & more lift , you will have to modify the heads for that lift as well as matching springs & make sure to check piston to valve clearance .
PRW rockers are available in all 3 ratios . This will give you roller cam specs without the cost & hassles of a rolller with over .700 lift @ 300* duration . you can always discuss your cam needs with Lunati , they will be glad to help & you can go to a solid roller if you prefer but it will increase the cost by approx $700