mopardemon340
Well-Known Member
if I replace the stock tappet rocker arms with roller rocker arms will I need to change the valve covers and get new push rods.. I'm going to keep the same ratio of 1.6
360 magnum rocker question
- Thread starter mopardemon340
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Robbie2734
Lambcharger
I had to, good luck finding a set that will fit. The oil baffles are the problem, I had to beat them into submission.
mopardemon340
Well-Known Member
what roller rockers did you use?
Robbie2734
Lambcharger
Robbie2734
Lambcharger
Did that require drilling the mounting holes larger?
sport74
Well-Known Member
Comp cams offers a conversion kit to add magnum heads to an LA engine. These are rollers but are stamped instead if billet. I believe it is part number 1426 kit. Not sure if they clear or not I will check tomorrow and get a picture too
Robbie2734
Lambcharger
Yes on my setup, but you can get those rockers in the magnum stem size too. I had mine drilled for 7/16th studs. The valve springs are 120 on the seat and 320 open. The machinist thought it was a good idea. I'm ironing out the bugs now but I'm impressed with the power and broad torque curve. One more thing you can't see. I used guide plates, I tried the self aligning rockers and they came too close to the retainers for my liking.
mopardemon340
Well-Known Member
thanks.. where does the guide plate go?
Robbie2734
Lambcharger
The studs have a flange on the bottom. They are sandwiched between that flange and the head. You place the guide plate on the rocker tower, then screw in the studs thru the guide plate into the tower. Some alignment is necessary to center the roller on the valve stem.
I could not use stock magnum covers with my roller rockers, but I had a set of mopar performance LA ones, they clear fine, just use 5 bolts instead of 10.
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