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243's on 5.3

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Old 11-26-2007, 01:15 PM
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Originally Posted by Truckshop
the ones i got are off of a tbss. they are ls6 heads with 2.00 intake valves.
So then they'd be ls2 heads not ls6 heads
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Old 11-26-2007, 01:15 PM
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Originally Posted by Onetogofast
Cool, hope it runs good. What size are the intake valves on a stock 5.3 head? Thanks for the info.
Stock 5.3 have 1.89 intake and 1.55 exhaust
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Old 11-26-2007, 03:34 PM
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Originally Posted by RandomHero
So then they'd be ls2 heads not ls6 heads
yep! same casting #'s but no sodium filled valves
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Old 11-26-2007, 03:49 PM
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Originally Posted by Truckshop
yep! same casting #'s but no sodium filled valves
Did you have to get custom made pushrods since you had them milled??
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Old 11-26-2007, 05:23 PM
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nope. between the milling and the smaller base circle of the tr220 i used 7.400 pushrods.
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Old 11-26-2007, 06:10 PM
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once you get it tuned in are you going to go to the dyno??
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Old 11-26-2007, 06:20 PM
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Originally Posted by Truckshop
nope. between the milling and the smaller base circle of the tr220 i used 7.400 pushrods.

are these stock push rods ur using
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Old 11-26-2007, 06:22 PM
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Same setup that I am planning on running with my truck. Interested to see how you like it.
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Old 11-26-2007, 06:24 PM
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Originally Posted by JHALL7644
are these stock push rods ur using
7.400 is the stock length

I don't know but i'm kinda thinkin' they are hardened pushrods since he has a cam. That is usually the way you go when you go with a cam.
Last edited by joshua022; 11-27-2007 at 08:49 PM. Reason: typed it wrong
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Old 11-26-2007, 06:26 PM
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Originally Posted by joshua022
7.440 is the stock length

I don't know but i'm kinda thinkin' they are hardened pushrods since he has a cam. That is usually the way you go when you go with a cam.
ok cool, what i wanted to know
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