valve clearance???

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Dec 18, 2005 | 06:49 PM

SSLS1

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valve clearance???

ok im putting a t-rex in a buddy's car tomorrow and i was wondering if on a stock ls1 bottom end will i have Piston to valve clearance problems with a set of patriot 5.3 stg II heads? i am not for sure but i dont think the heads are milled but im not for sure what Patriot does to them??

Dec 18, 2005 | 09:44 PM

SSLS1

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anyone

Dec 18, 2005 | 09:48 PM

REDWS6ROCKET

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From: Blue Springs, MO

no, you need to fly cut that will not work

Dec 18, 2005 | 09:53 PM

itchygomey98

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Pretty sure those heads have 1.575 exhaust valves = flycutting.

Dec 18, 2005 | 10:06 PM

Beast96Z

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From: Shreveport, LA

If ANYTHING has been done to the heads, ie. bigger valves or milling, you will need to flycut.

Dec 18, 2005 | 10:09 PM

01red28

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From: Springfield,MO

Ya it wont clear I asked thunder about this a while a ago and they said that even with just after market valves on stock heads they have had problems.

Depending on valve size more than likely fly cutting is going to be required

Dec 18, 2005 | 10:19 PM

SSLS1

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hmm ok well do you guys know about how much it costs to get the pistons cut?

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Dec 18, 2005 | 10:27 PM

MadBill

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You can rent a tool from Isky and others and do it in the car. There's a thread around here somewhere...

Dec 18, 2005 | 10:31 PM

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HavATampa

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From: Louisiana

I'm confused. You have the exact same setup listed in your sig. Did you have clearance issues? Why it would it be any different with your buddies setup? LG Motorsports also rents the cutting tool and mockup head.