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Old

Jan 9, 2018 | 08:43 PM

#1

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Head Gaskets

I have been doing fine with FEL-9292PT head gaskets on my 4.8L LR4 Boosted 10 psi around 450HP stock heads and bottom end.

Now Im upgrading to Trick flow ported heads, 302 duration cam, and same turbo kit 10 psi boost and thinking about upgrading head gaskets and was wondering if anyone knows of better? Made crazy power with the Felpro 9292 gaskets and I'm worrying for nothing?

And yes, I have looked on Trick Flow, Summit, and Felpro to but cant find definitive answers.

thanks for the help

Old

Jan 10, 2018 | 06:11 AM

#2

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From: woodbine, md

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A lot of guys use LS9 gaskets, some say the bore is to big below a 4" bore, but others say no problem, so who knows, lol

Old

Jan 10, 2018 | 01:38 PM

#3

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Thank you!

LS9! That' a good start! Thank You! Well even if the bore size is a little big, As long as the rings seat to the surface, at worst we will lose a smidgen of compression. No biggie.

Old

Jan 11, 2018 | 06:43 PM

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From: Norn Iron

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302 duration cam ?

Old

Jan 11, 2018 | 09:24 PM

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From: Portlandia

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thats gotta be a typo

Old

Jan 11, 2018 | 09:39 PM

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240* at .050"

30* more than needed.

Old

Jan 12, 2018 | 06:19 AM

#7

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Quote:

Originally Posted by tblentrprz

240* at .050"

30* more than needed.

227 @ .50 on the Intake 241 @ .50 on the Exaust

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Old

Jan 12, 2018 | 09:45 AM

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From: Houston

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That's wayyyy tobig of a cam

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Old

Jan 12, 2018 | 09:45 AM

#9

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From: Houston

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I would put that in a Boosted LS3 lol not a 4.8

Old

Jan 12, 2018 | 06:21 PM

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Run the correct Bore headgasket. You do not need LS9

Old

Jan 13, 2018 | 05:25 AM

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From: Norn Iron

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Quote:

Originally Posted by Ron_Stoppable

Run the correct Bore headgasket. You do not need LS9

Yep...any stock GM MLS gasket will easily hold the power, so nice to run the correct bore size.

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