Rocker Arm trunion Upgrade
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Joined: Sep 2005
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From: NYC
Next week I'm swapping out the Comp trunnions/ rocker arms with a set of Tooley trunnions in new rocker arms. I want to inspect the Comp trunnions to see how well they are doing and will post pictures if there is any drama.
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Joined: Sep 2005
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From: NYC
That's is not the Comp kit; snap rings are too big... It's either a Tooley or Summit kit. Probably Tooley's, because the ends are black.
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From: Mt Morris, Michigan
Last edited by KCS; Oct 20, 2015 at 11:49 AM.
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I noticed they offer cyro treated and micro polished version of upgrade kit for 449.00. Anybody think the added processes worth it? Reading about cryo treating process sounds like it , but would like others input. Thanks
I'm also curious if the CRS cryo/polished version is worth the price... are they bushed like the CHE variant?
What tools are needed to install a trunnion upgrade, and what's a reasonable amount of time to complete all of them for a first timer? Might there be a write-up somewhere?
What tools are needed to install a trunnion upgrade, and what's a reasonable amount of time to complete all of them for a first timer? Might there be a write-up somewhere?
I'm also curious if the CRS cryo/polished version is worth the price... are they bushed like the CHE variant?
What tools are needed to install a trunnion upgrade, and what's a reasonable amount of time to complete all of them for a first timer? Might there be a write-up somewhere?
What tools are needed to install a trunnion upgrade, and what's a reasonable amount of time to complete all of them for a first timer? Might there be a write-up somewhere?
Hmm, 4 hours... not having access to a vice/press and the local hourly rate indicates I'll be paying for the preassembled variety. Are the BTR or CRS versions bushed like the CRE versions? How would you pick bushed or non-bushed for an application?
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Joined: Dec 2011
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From: SoCal
BTW, I'd say four hours is probably assuming a VERY slow beginners pace. I could do the complete build and swap in about that amount of time I suspect. All you need is basic hand tools, a vice, valve spring compressor, air compressor and fitting to connect to the spark plug hole. Look at it as an excuse to get some new tools if you want. Here's a great right up on an LS cam swap that includes how to do those rockers.
http://www.camaro5.com/forums/showthread.php?t=125123
The cyro treated rockers we sell have our bearing trunnion kit installed, the trunnions themselves have been micropolished and cyro treated as well, which removes the black oxide from the end of the trunnions.
Cryo treated and Micro polished rocker arms
It seems like bushed would be better for a application where you know shock loading would occur. However since the lifters also have bearings, they tend to take the brunt of any lofting, and therefore shock loading, that occurs.
This would be on a new top end, would be installing them at the same time as new heads, etc. Rev limiter around 6500, valve lift below .615", conical springs (.615", 136#@1.800", 412#@1.170", CB 1.125", Rate 438). In trying to offset some of the cost of the nice lifters, I think the non-cryo'ed preassembled rockers are my preference.
Brian - I sent you an e-mail via LS1Tech a few days ago, did you receive it?
Brian - I sent you an e-mail via LS1Tech a few days ago, did you receive it?
I just installed the BTR kit. The snap rings are so beefy, I really struggled to get them on with my budget harbor freight snap ring pliers. I have installed comp's version before and they are wayyyyyy less sturdy.
I just used a very basic, cheap bench vice to install them. The bearings slide in with little effort if you line them up straight. I didn't time how long it took, but it was certainly way less than 4 hours. Maybe 90 minutes, tops. Easier than valve springs, imo.
I just used a very basic, cheap bench vice to install them. The bearings slide in with little effort if you line them up straight. I didn't time how long it took, but it was certainly way less than 4 hours. Maybe 90 minutes, tops. Easier than valve springs, imo.