valve job, timing chain, oil pump questions
#1
valve job, timing chain, oil pump questions
My LS1 in the 04 GTO has 19500 miles on it. I was going to do a cam swap & get the stock 241 heads ported as well. My question is with such low miles do I need to replace the timing chain? What about the oil pump even though it has the LS6 style? Also, should I get a valve job done too? Really don't want to spend the extra $250 but if I should then I will. I will reuse the lifters, pushrods, & rockers. Thanks!
Last edited by cdoggy81; 12-03-2007 at 08:31 PM.
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The oil pump, timing chain, and lifters absolutely don't need to be replaced. Howevr PR's and springs and retainers should be. TSP sells an excellent dual spring, titanim retainer set for <$300. It's not clear what you want to accomplish with your heads, but there are better choices, 243's for instance, very moderately priced.
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My LS1 in the 04 GTO has 19500 miles on it. I was going to do a cam swap & get the stock 241 heads ported as well. My question is with such low miles do I need to replace the timing chain? What about the oil pump wven though it has the LS6 style? Also, should I get a valve job done too? Really don't want to spend the extra $250 but if I should then I will. I will reuse the lifters, pushrods, & rockers. Thanks!
i would save the $$ on the heads and just go with a cam and then later on get some real good heads.
with only 20k miles i thinkg your oil pump and chail would be fine. but a spring kit and pushrods are a no brainer.
#5
Thanks guys. I was going to get springs (PP Gold ~$250) already but forgot to mention that. I wasn't planning on pushrods though but everyone has recommended it, so for ~$110 why not.
I thought about saving up for some aftermarket heads but have decided to just get the stock ones ported & spend the money on other mods (ported TB, headers, dual exhaust, etc.)
I thought about saving up for some aftermarket heads but have decided to just get the stock ones ported & spend the money on other mods (ported TB, headers, dual exhaust, etc.)
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Ive seen a car break a timing chain with a little over 50k miles on it. It had a Futral F13 cam only, I would get a new chain I know you got low miles but it would be better to spend a little on a chain now instead of a chain ,valves and possibly pistons if the chain does break.
#11
Hmm..... Now you all have me thinking more & more.... With the addition of the valve job + the pushrods, that $1400 package from Patriot Performance seems like the the way to go. Besides, that was one of the 3 cams I was considering anyway:
Thunder Racing TR224 224/224 .563/.563 114
Patriot Performance 225/229 .580"/.590" 114
Texas Speed Torquer v.2 232/234 .595/.598 114
LS2 chains are ~$40 IIRC so looks like I'll be throwing that in there as well.
Thunder Racing TR224 224/224 .563/.563 114
Patriot Performance 225/229 .580"/.590" 114
Texas Speed Torquer v.2 232/234 .595/.598 114
LS2 chains are ~$40 IIRC so looks like I'll be throwing that in there as well.
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We found the 04 Vette we just put a cam in already had the LS2 chain. You could wait and measure the thickness to confirm. If you have it already, you don't need to remove the oil pump at all and run the risk of a pinched o-ring. The chain can be gotten fairly quick if you do need it.