1991camaro_rs

hey guys i got a lt1 from a local guy for a 150 bucks, it need rebuilt and i figured i could play with the bolt on car this summer, try and put together a nice head's and cam 355 while i do that, nothing crazy but nice. So im not trying to start an battle between the two, im just curious what kind of number's guys have seen with AI 200cc head's, and one of there hotter cam's, and what have guys got from LE2's and one of there custom cam's. just looking for opinions on both, and down sides and upsides to both...if there is any down sides thanks guys

1991camaro_rs

after doing some more research around 400whp seems to be the norm, and low 11's with good suspension, gear, and converter seem's to be the norm. so any difference in quality maybe would be a better question.

fbody93

iTrader: (4)

AI by far. Even the 190cc would work just fine for a 355

bowtienut

iTrader: (1)

I'm running AI's 200cc ported LT1 heads and a 228 duration cam from them on a rebuilt stock bottom. You can see the 1/4 mile numbers below. Keep in mind the car is about 500 lbs heavier than the fast F-bodies.
On the dyno, it was 425 SAE @ 6400 rpm with small Tri-Y headers and a locked converter. Recently, it dyno'd 420 SAE @ 6400 with 1-3/4" LT's and a non-lockup 8" converter.
No downsides whatsoever in the AI setup for me. I got a well-engineered top end setup worth the money.

RamAir95TA

iTrader: (2)

AI 200ccs on a nothing-special 383 build here. Results in sig.

The AI stuff is unbeatable IMO.

97lt1camaro

iTrader: (3)

I have a set of le2 heads on my car, if I had to do it again i would be purchasing from AI. Pm if you want reasoning.

speed_demon24

iTrader: (6)

I've had both and it's not a contest between the 2 quality wise and power wise.

Alex94TAGT

I've used both LE and AI as well. I strongly prefer AI.

Rob94hawk

iTrader: (1)

AI, LE, who gives a crap. It all depends on who gets their hands on them afterwards.

robsquikz28

iTrader: (246)

Ive had both on my car and the exact same buid except head swap.
Ran 11.7s with le2 and 11.5s with the 200s. As for spray mid 9s was a cake walk on the 200s

Dave357LT1

My vote is for A.I. tho you may go fast and turn into a internet hero

Shownomercy

iTrader: (1)

Ya, fixed that for you

1991camaro_rs

thanks guys, i have heard more about AI than LE, although everything i heard about both we great. AI seems like a good deal for the money.

JasonShort

iTrader: (242)

I also am a big fan of AI's stuff. Being a mechanical engineer myself, the CNC and machine work on their heads is absolutely top quality!

96capricemgr

iTrader: (1)

The responses from
97lt1camaro
speed_demon24
Alex94TAGT
tell you more than the rest of us could.

There are other guys who have been down the same road and tell the same story, hvyss and 94zgreenmachine are two more who come to mind.

1991camaro_rs

Awesome, has anyone gone ten's on a stock bottom end, or tens with a AI 355??

RamAir95TA

iTrader: (2)

There's quite a few people who have gone that fast but keep in mind it's all about the overall setup, not just the heads, that get the car into those times.

1991camaro_rs

Correct im not shooting for tens by any means at this time. Im just doing so plans and not trying to shoot to high. I do wana thank everyone for their opinion's, and info you guys are great!!!

BOLO

iTrader: (40)

I will, comes Spring with my LE h/c/i combo

bowtienut

iTrader: (1)

Well......not a 355, but with a 350
And with quite a bit more weight than most are carrying.
See sig.