rocker arms
02-01-2008, 12:41 AM
#1
Staging Lane
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rocker arms OK, so everyone is telling me that i need to replace the rockers on my LS1 because of the needle bearings in my oil pan... so i can get rockers and replace them just fine, but how do i know what to buy that will fit under my stock valve covers and will be a nice power adder for a descent price... i've already looked at yella terra, but i would like more opinions. i've looked at a couple GM Performance rockers and noticed some of them say "will not fit with stock valve cover" so how will know which rockers will fit when i am shopping online if it doesn't say one way or the other? is there a certain measurment i should be looking for?
02-01-2008, 08:49 AM
#2
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the vinci/crane 1.8 rockers gave me 17 rwhp on the stock cam and stock tune. they fit under stock valve covers.
Last edited by mrr23; 02-01-2008 at 08:58 AM.
02-01-2008, 08:56 AM
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realize that if you swap to higher ratio rockers...you also have to swap springs.
they are NOT a simple bolt on....not hard if you kknow what you're doing...and have the tools. but not easy either.
search around...one of the companies ( i think yella terra) offers "upgrades" to stock rockers. little more cost effective.
i'm not aware that any of the higher lift rockers interfere with the covers. although i did have to clearance a little for my HS 1.7s...mostly just excess casting along the inside edge of the head-valve cover gasket surface. nothing 5 mins with a hand file couldn't solve.
they are NOT a simple bolt on....not hard if you kknow what you're doing...and have the tools. but not easy either.
search around...one of the companies ( i think yella terra) offers "upgrades" to stock rockers. little more cost effective.
i'm not aware that any of the higher lift rockers interfere with the covers. although i did have to clearance a little for my HS 1.7s...mostly just excess casting along the inside edge of the head-valve cover gasket surface. nothing 5 mins with a hand file couldn't solve.
02-01-2008, 10:25 AM
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Check this out, used stockers with low miles on them. Seems like a good deal:
https://ls1tech.com/forums/showthrea...hlight=rockers
https://ls1tech.com/forums/showthrea...hlight=rockers
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02-01-2008, 11:16 AM
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Im running the scorpion rr, i they arent bad for the price i know not to many people are running them but i couldnt pass up the deal and i figure while i was changing my heads i might as well get new rr that way my hole top end is done
02-01-2008, 11:33 AM
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i havn't installed them yet but i'm gonna be running PRW 1.7 rockers. they look just like the crane ones. you can get the whole kit with studs, pr guides, hardened pr's, poly locks and rockers for around $389 and they offer 1.8's too. https://ls1tech.com/forums/generation-iii-internal-engine/838849-prw-rockers.html
