Generation III Internal Engine 1997-2006 LS1 | LS6
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New Setup?

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Old Dec 9, 2011 | 12:00 PM
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Default New Setup?

So I have been having oil problems lately, oil pressure drops at high rpm so I pulled the motor last nite. I am going to bring it to a machine shop and have new bearings put it and the rest of it gone thru.


Now is the time to switch my setup. I am happy with the setup but the cam is rather large (see sig) and going slow is a pain in the but. The whole setup has about 15,000 miles on it.

I was thinking of changing the cam and and possibly a set of heads. I am not sure how much it costs to redo the 853 casting heads but it would probably be worth it to get some new heads, maybe some 243's? As for a cam I was thinking of going with a EPS cam custom specd, that way I get the cam I want instead of a off the shelf cam. The downside with the heads is I will need injectors and also a new tune for the heads and cam.


What do you guys think? I mean I could just pull it apart and use all the same parts with just new bearings in the motor.
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Old Dec 9, 2011 | 08:06 PM
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I rebuilt my engine about 2 months ago, new bearings and seals, oil pump, water pump. Cleaned up the pistons and had them checked. They checked good so I put them back in. Put an all new top end on. ls1 intake, 92mm throttle body, hardened pushrods, double gold valve springs. hooker longtubes and 3 inch y-pipe.
It fired right up when I had everything back together.
I had 140,000 miles on the engine when I tore it apart so a lot had to be replced. I reccomend use your best judgement, if it looks less than par, replace it. Don't make the error of reusing a $50 part that is going to cost you your engine if it fails.
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Old Dec 9, 2011 | 08:09 PM
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I stopped at the machine shop today. I figured $600 in bearings. Its $135 to grind the crank. He said $400 to do a valve job and stock springs, which mine are for the higher lift. He then told me to assembly the motor its around $600 or $700. So by the time I am done its $2000? If you dont mind me asking, how much was yours to do? Did you assemble it yourself?

He said most likely the cam is still good, I doubt the heads need anywork or anything else. I just would hate to sink $500 into these junk 853 heads.
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