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All LS rockers use trunnions. They are the pivot point around which the bearings or bushings ride. Which Comp ones are you referring to? TSP has just come out with a new roller tip rocker with needle trunnion bearings, and soon with a bushing optional in place of the needle bearing.
All LS rockers use trunnions. They are the pivot point around which the bearings or bushings ride. Which Comp ones are you referring to? TSP has just come out with a new roller tip rocker with needle trunnion bearings, and soon with a bushing optional in place of the needle bearing.
Yes you are totally right, my bad. I ment trunion upgrage
Don't use COMP trunnions because they are junk. Buy Straub bronze trunnions. Try to find a low mileage used set of stock rocker arms and do the upgrade yourself.
Don't use COMP trunnions because they are junk. Buy Straub bronze trunnions. Try to find a low mileage used set of stock rocker arms and do the upgrade yourself.
I have a set of LS3 rockers with some new/never installed Straub bearings that I don't think I'll be using.
Saw this thread and thought I'd share some observations of my project, which was to utilize the BTR shafts with the TSP roller rockers.
1) For some inexplicable reason, BTR no longer locates the rocker arms on the shafts using circlips, and instead (on the LS3 product) is using "thrust shims" to position the rockers on the shaft. Intuitively I'm thinking to myself, "What the...". Instead of a 360 degree lock of the rocker arm on the shaft, they use in essence a precision washer, which slips onto the shaft, and then sits between the rocker and the sides of the steel stand they use to replace the aluminum OEM stand. Anyway, only about 90 degrees of the washer is actually being held in place at the base. Granted, the shim ID is a close fit to the shaft OD, so not sure it will rock over, or allow a lot of lateral movement of the rocker, but seriously, why the change? Thought BTR was better than that.
2) The TSP roller rockers are about .020" wider than the OEM rocker (bearings removed), and a direct swap of utilizing TSP rollers with the new BTR design will require narrowing the body of the rocker by about .020" prior to inserting the roller bearings back into the rockers. Otherwise, the "thrust shims" will interfere with properly attaching the shaft to the stand as they not slide into position.
3) Some of the BTR machining reminds me of some Chinese stuff I've seen. I had to lightly file the stands in several places, and a couple of shafts in order to seat everything correctly. Machining burrs kept me from slipping their "shim" onto two shafts, and the steel stand had burrs on it that would have prevented the shafts from properly seating in their saddles (onto the stand).
07-13-2017, 10:56 AM
