Tooldude

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?

Darkman

iTrader: (2)

Yes, it is.

z99ls1

iTrader: (12)

X2! Great mod

brianw401

iTrader: (4)

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

+1. Definately worth it.

2QuikTA

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

2000PewterT/A

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

Mr MasterCraft

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

01ssreda4

iTrader: (96)

Definitely notice the difference on the top end when switching intakes. Stock LS6 is a good mod for the money.

slt200mph

iTrader: (42)

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.

Sales4@Texas-Speed

iTrader: (4)

We are usually looking to pick up around 15rwhp with the LS6 over the LS1. Solid modification for the money IMO!

garygnu

also consider a ported TB.

z99ls1

iTrader: (12)

Is that worth it? I have thought about it, but im not sure if it would be worth it or not...