Speedmonster185

iTrader: (1)

I was thinking about this and I'm curious about it. I know they changed the cam in the 01-02 LS1's, but I don't know how much it affected it. Would a 98-00 engine with the ls6 intake or a stock 01-02 engine be more powerful?

00454sscamaro

the 98-00 would have advantage. the 01-02's have only the intake manifold for better equipment. the cams is actually alil weaker. wouldnt think it to be that noticeble though just slightly.

Build #1

The cams in 98-00 are larger, so they have the advantage with the LS6 intake. Probably a 10-15 hp advantage.

BLK02TA

iTrader: (11)

The 01-02s have better exhaust manifolds no? I always thought the 01-02s dynoed more. IMO They'd be close to equal with the LS6 on the 98-00. However thats just my opinion.

lastcall190

iTrader: (36)

The '00 actually had the good exhaust manifolds as well. Which is why without a tune some guys argue that the gain felt with LTs and NO tune is minimal, vs on a 98-99 where the stock manifolds were more of a holding back point. Just my opinion, but I didn't put two and two together about the bigger cam AND LS6 manifold, very interesting.

-J

Cool Z

2000 Z28 M6 Stock manifolds, cats, and Y-pipe....334 RWHP 340 RWTQ with mods in sig. The only mods made with HPTuners was turning off EGR, changed the fans, CAGS delete and limiting max WOT timing to 26 degrees as opposed to the stock 28 degrees because the engine likes to detonate at 28 degrees. No fuel changes with stock fueling AFR was 12.4:1

Louie83

iTrader: (3)

In 2000 is when they changed to the smaller cam and better exhaust manifolds.

1999 and 2000 also had 26 lb fuel injectors, whereas 98, 01, and 02 had 28 lb fuel injectors.

Speedmonster185

iTrader: (1)

So they put the smaller cam in in '00, but they didn't change it to the LS6 intake until '01 o_O? I thought they changed them both the same year?

RrCoX22

iTrader: (6)

'01~'02 have LS6's but don't even think of swaping motors... just stick with you got and mod that

00454sscamaro

im looking at my book right now- how to build hi perf chevy ls1/ls6 following are specs for cams

f- body's

1998-pn12557812. duration degrees's at .05in in/exh 198/209. lift in/exh .500/.500 lobe centerline (degrees)119.5

1999-2000 pn12560965 198/209 .500/.500 119.5 same as 98's

2001-2002 pn12561721 196/207 .467/.479 116



y body's

97-98 pn12554710 199/207 .472/.479 117

98-99 pn12560964 same specs as previous just diff pn
00 pn12560968 198/209 .500/.500 115.5

01-03 pn12561721 198/207 .467/.479 116



ls6 y body

01 pn12560950 204/211 .525/.525 116

02-04 pn12565308 204/218 .555/.551 117.5



lr4&lm7 (trucks)
99 pn12560966 191/190 .457/.466 115.5

ok im not adding pn's anymore just years and specs

00-04 lr4+03-04 lm7 191/190 .457/.466 114


lq4

99-00 191/190 .457/.466 114

01-04 196/207 .467/.479 116

lq9

02-03 same as 01-04 lq4

gmpp avalible cams
hot 219/228 .525/.525 112
asa 226/236 .525/.525 110

Build #1

So what we are getting at is that the 2000's would have the most advantage with the LS6 intake, unless 98-99 had LT's.

Cory1970

iTrader: (2)

I have a 98 and I went with 2000+ ported exhaust manifolds (black bird) and I will be hopefully getting an ls6 intake soon. Do you think i whill need a tune after that??

RrCoX22

iTrader: (6)

nope... not worth until maybe LT's and some more serious mods

VIP1

Read the FAQ:
https://ls1tech.com/forums/new-ls1-owners-newbie-tech/213148-jrp-s-faq-commonly-asked-questions.html