wyrmrider
Well-Known Member
I've built lots of those motorhome motors
we developed the KB quench pistons just for that application with cam to match
with the stock pistons and with stock gears and converter stick with a short cam with lots of lift even with aftermarket heads
You CAN make more top end power with a big cam but it will get suck gas and get hot- you are not doing super stock are you?
quench pistons and the right cam reduces EGT by around 800 degrees in a motorhome motor
the aftermarket combustion chamber helps as the stock 452 or any BBM head after the 67 915 sucks big time what with the spark plug location etc
Mike Jones has the best cam in this class bar none and he will give you an exhaust lobe to match your build
next would be a Lunati Voodoo in the 256 range or if you are a perfectionist in setting up your heads with light valves and springs the HOWARD with a 15 in the comments column in the 256 range works COMP, CRANE etc have NOTHING in this duration range Comp's smallest is 275 and that's way to big for a smog build
even if you do raise the compression you still have to determine where you want the torque curve
and forget roller tip rockers unless you are willing to spring for the B3 kit-- go to B3racingengines.com and read all 4 tech articles
1.6 rockers help but there are better places to spend your money (that's IMHO)
we developed the KB quench pistons just for that application with cam to match
with the stock pistons and with stock gears and converter stick with a short cam with lots of lift even with aftermarket heads
You CAN make more top end power with a big cam but it will get suck gas and get hot- you are not doing super stock are you?
quench pistons and the right cam reduces EGT by around 800 degrees in a motorhome motor
the aftermarket combustion chamber helps as the stock 452 or any BBM head after the 67 915 sucks big time what with the spark plug location etc
Mike Jones has the best cam in this class bar none and he will give you an exhaust lobe to match your build
next would be a Lunati Voodoo in the 256 range or if you are a perfectionist in setting up your heads with light valves and springs the HOWARD with a 15 in the comments column in the 256 range works COMP, CRANE etc have NOTHING in this duration range Comp's smallest is 275 and that's way to big for a smog build
even if you do raise the compression you still have to determine where you want the torque curve
and forget roller tip rockers unless you are willing to spring for the B3 kit-- go to B3racingengines.com and read all 4 tech articles
1.6 rockers help but there are better places to spend your money (that's IMHO)
