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MS3 and PRC 5.3 heads... Intake question?

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Old 05-27-2009, 07:47 AM
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Default MS3 and PRC 5.3 heads... Intake question?

I have an 2002 LS1 with MS3 cam and going to order a set of PRC 2.5 5.3 heads. Can I use my LS6 intake or will I be holding the motor back? Or should I get a FAST??
Also do I need injectors??


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Old 05-27-2009, 09:32 AM
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I would like to know this too
I'm actually in the process of doing this swap right now.
Old 05-27-2009, 10:24 AM
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You dont NEED a FAST intake, though bolting one on will certainly give gains.

Do a search in the Dyno comparison forum, theirs a few guys who have 420+ rwhp through a LS6 intake. Then guys who have 460+ with FAST intakes.
Old 05-27-2009, 10:30 AM
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I have had an LS6 on mine and only put down 442 then added fast 92/92 then 463. not to shabby.
Old 05-27-2009, 10:55 AM
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What about the injectors??
Do I need them with the LS6 or the FAST 92/92??

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Old 05-27-2009, 06:12 PM
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they didn't make any difference on the dyno. i just got a good deal on them so i put them on after the second pull which was 463 and he retuned with injectors and it was same. the dyno i was on is a stingy bastard. i put down 488rwhp on a different dyno jet. but of course i claim the lower one to be on the safe side.

but they never hurt b/c if you like me more mods are coming.




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