INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

LQ9/SS 6.0 Heads

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Old Mar 20, 2012 | 10:21 PM
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cammed00's Avatar
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From: Ft.Worth
Default LQ9/SS 6.0 Heads

Wanted to get some input on them as far as flow comparison over stock 5.3 heads and what to pay for a set?
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Old Mar 21, 2012 | 09:09 AM
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those heads are 317s. Same castings as the lq4s. You don't want to run them on a n/a 5.3. The 71cc combustion chambers would kill your low end.

Possibly be a decent head for a boosted 5.3. Probably still a better option out there. That being said, I wouldn't pay more than $150 for a complete set.

The prc 2.5's from texas speed would be a good option, imo.
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Old Mar 21, 2012 | 12:21 PM
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Originally Posted by zero2sixT
those heads are 317s. Same castings as the lq4s. You don't want to run them on a n/a 5.3. The 71cc combustion chambers would kill your low end.

Possibly be a decent head for a boosted 5.3. Probably still a better option out there. That being said, I wouldn't pay more than $150 for a complete set.

The prc 2.5's from texas speed would be a good option, imo.

Thanks for the input and the guy was asking $250 but I'll pass anyways since they're no use to me right now
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