4.1 Stroker Build

[ek02]

It's a Comp custom roller grind. I run NA with Nitrous. I have the same cam in my 4.1 now. It's .526 lift with 1.65 rockers on a 108 LSA with 228 intake and 230 exhaust @.050 lift. Same cam as an old Kenne-Bell Mk II R cam. Pulls hard in the mid range on a 4.1.

 

[jdpolzin]

It's a Comp custom roller grind. I run NA with Nitrous. I have the same cam in my 4.1 now. It's .526 lift with 1.65 rockers on a 108 LSA with 228 intake and 230 exhaust @.050 lift. Same cam as an old Kenne-Bell Mk II R cam. Pulls hard in the mid range on a 4.1.

Are you getting enough vacuum with a 108 LSA?

 

[JayC]

I wish you the best. Ive seen those blocks split right down the middle when you get some horsepower going through them.

 

[ek02]

So far so good. Both my engines have girdles on them. The vacuum is good on a 274" 4.1. I also have a vacuum tank so the brakes work fine. When I had a 3.8 in the truck, vacuum was not too good, so I added the vacuum tank.

 

[ek02]

I just got my Johnson short travel roller lifters from Full Throttle. Still no cam from Comp.