1.85 Rockers
Thread Starter
12 Second Club
Joined: Aug 2005
Posts: 222
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From: Paradise, Newfoundland
1.85 Rockers I was wondering if a set of COMP 1.85 RR will have any Piston to Valve issues with my small cam.
Spec on the cam; 212/218 @.50 and .522/520 lift.
what would the lift be with these rockers?
Spec on the cam; 212/218 @.50 and .522/520 lift.
what would the lift be with these rockers?
then multiply lobe lift by the new rocker ratio. .307 x 1.85 = .568, .305 x 1.85 = .564.
New cam specs 212/218, .568/.564.
Concerning PTV issues, this will depend on your combination and there isn't enough information to say either way.
Thread Starter
12 Second Club
Joined: Aug 2005
Posts: 222
Likes: 0
From: Paradise, Newfoundland
This is what you may need to know,
Push rods are comp 7.4, lifters are comp high energy hydraulic rollers, 918 springs.
If there is anything else someone needs to know just let know whats misssing.
I'm really out to lunch when it comes to these rockers.
Plese help!!
Push rods are comp 7.4, lifters are comp high energy hydraulic rollers, 918 springs.
If there is anything else someone needs to know just let know whats misssing.
I'm really out to lunch when it comes to these rockers.
Plese help!!
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I've been using Comp 1.85s with a set of heads that Richard of WCCH CNCed and milled off 0.030" for me nearly 10 years ago. I also install a set of Comp Rs at the same time and stuck with the stock length 7.4" pushrods, but upgraded to Comp Hi Tech hardened pushrods because as you know the Pro Mags use guide plates. The only thing I did to the internals in all that time was to put in a set of manley springs w/titanium retainers. They replaced a set of Comp 918s which have been in another LS for over a year now. I don't belive you're going to have clearance issues. As you might imagine I'm a big fan of Comp Pro Mags. If you use Comp Rs with them as I did be sure to stop at zero lash. You must have a very sensitive index finger to get this adjustment right. Nothing like experience with this one.
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