Jeep Strokers

I'm going with a comp cam K68-293-4 cam

Intake Duration at 050 inch Lift 218
Exhaust Duration at 050 inch Lift 226
Duration at 050 inch Lift 218 int./226 exh.
Advertised Intake Duration 262
Advertised Exhaust Duration 270
Advertised Duration 262 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.493 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.512 in.

NOW.......I have cam accross a set of 1.7 BBC roller rocker arms for....well free. I would really like to use them. With those rocker arms my lift is going to be .590 in. The cam kit comes with stock springs. From what i have read on here, that will be too much lift!

What do I need to run, I.E. springs/retainers to use this cam and rocker arm set up? Does anyone have some good info about running chevy valves?

Thanks again.

Lift should be .523/.544
stock rockers are 1.6
I recall reading about someone using chevy rockers(not on this forum), but it was a long time ago. IIRC it took a bit of modification.
Chevy valves get used a lot , just don't go much bigger.

I thought that the stock were 1.5! That explains why 1.5 SBC arms didnt even come close to fitting!

That makes me feel a little better!

Do you think .544 is too much for stock springs?

Thanks

not sure if youve seen or knew, but if thats your plan get the CL68-239-4, not the K68-239-4. the lifters and cam will fit the 4.0, but the rest wont.

For my sake I kind of hope you are wrong! I've already ordered the kit from summit and should be in this week.

Why will those springs in the kit not work?

He isn't wrong. The springs are meant for a 4.2L head. Won't work on the 4.0L heads. I wish Comp would fix their shit.

Yeap your right........comp didnt fix their shit!

I heard comp was going out of buisness?

4.whoa wrote:Lift should be .523/.544
stock rockers are 1.6
I recall reading about someone using chevy rockers(not on this forum), but it was a long time ago. IIRC it took a bit of modification.

Make that A LOT of modification. You don't need 1.7 ratio rockers with the CompCams 68-239-4. Stick with 1.6 ratio and get the Mopar Performance P5249464 valve springs with P4452032 retainers and P4529218 keepers.

Is this what you were thinking of: http://members.tripod.com/~Mojo_Page/Rokr1.htm