Speedmaster procomp shaft mounted rockers
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Joined: Jul 2018
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From: Western Australia
Speedmaster procomp shaft mounted rockers 
Retaining circlips
Worn roller cages
I have just pull a set of PCE261.1246 Speedmaster procomp ls2-3 Shaft Mount 1.7 ratio black Aluminum rocker arm set after one broke less than 2000klm with pac1208 valve springs and 130lb seat pressure.
5 sets of rockers had there needle roller cages worn through the edges exposing the needle rollers and 4 had the rocker retaining circlips wearing into the rockers making metal.
This could have been messy BEWARE!!!!
Last edited by Onsta; Jul 25, 2018 at 04:55 AM. Reason: Bad photo
Ouch....i have installed 2 sets of their 1.9s. But the ones i have are steel. One set has been on my uncles 5.3 for probably atleast 5k miles. I just put a set on my ls6 but haven't ran it yet. I'm using psi1511 springs on it and ls6 springs on his.
the shaft looks identical tho.
the shaft looks identical tho.
Thread Starter
Registered User
Joined: Jul 2018
Posts: 2
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From: Western Australia
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