LS6 Intake

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Jul 23, 2011 | 07:03 PM

Tooldude

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LS6 Intake

I'm doing a heads/cam swap (TEA stage 1/Texas Speed 224R 114LSA) here in the next few weeks on my 98 C5. Is the 300.00+ investment for a used LS6 manifold worth the HP gain over the LS1 intake?

Jul 23, 2011 | 07:34 PM

Darkman

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From: Spring, Texas

Yes, it is.

Jul 24, 2011 | 12:31 AM

z99ls1

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From: kansas

X2! Great mod

Jul 25, 2011 | 09:40 PM

brianw401

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From: kansas

[QUOTE=Darkman;15187634]Yes, it is.[/

+1. Definately worth it.

Jul 25, 2011 | 09:54 PM

2QuikTA

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Didn't GMHTP get like 25hp/15tq or so? Pretty good for $300

Jul 26, 2011 | 04:54 AM

2000PewterT/A

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Yes, the LS6 is a much much better intake manifold, not even comparable to the stock ls1.

Jul 26, 2011 | 05:29 AM

Mr MasterCraft

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From: The End of My Rope

From what steve wiliams said, not only is there a power advantadge, but it flows more at a higher rpm, where the factory ls1 (egr) intake typically dies above 5k RPM

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Jul 26, 2011 | 09:38 AM

slt200mph

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From: HOT'LANA, GAWJA

25 HP might be a little too optimistic for the LS6 intake.... 17 -18 HP might be a bit more realistic. It is worth the money. Your heads will produce much more HP/TQ with the LS6 over the LS1 intake. It was the first mod on my car. JRP (world famous stickie writer) did a install and a dyno test after his install and those were his numbers.

Last edited by slt200mph; Jul 26, 2011 at 10:06 AM.