Lt1Powerz

iTrader: (1)

I have been doing a LOT of tinking about this recently with a buddy of mine. If i took Lt4 Heads and Intake and bolted them on to my Lt1 what kind of power am i looking at? What kind of track times? It will be tuned of course... I have Intake, Such a small cam that i dont even care how big it is.., cat delete and a built A4. What am i looking at and how much is this going to cost me, Roughly...?

Thanks for the input guys!

And i know a lot of you are going to say just get an Ls1 but my girlfriend shot that down REAL FAST, so im doing this in secret if i dont Ls swap my car in secret

Lt1Powerz

iTrader: (1)

UPDATE: Just looked at summit and i can get heads, intake and a hotcam KIT for: Estimated Total $2,893.85 plus 250 for a tune

Does this sound legit to you?

weaklt1

iTrader: (11)

The old Gm LT4 kit advertised 425 to the flywheel. Throw a converter in there also,it'll help alot.

Lt1Powerz

iTrader: (1)

Old as in...? What cars came with the Lt4? Camaro, corvette and what else?

stevo9389

old as in GM discontinued lt4 intake. all 96 manual transmission vettes and and a handful of fbodys (about 10? firehawks and like 100 camaro ss) got them. you will not see 425hp at the flywheel with that kit. it will however make close to an LS1 with longtubes power which is about 330 to the wheels. save yourself the money and get your heads ported, a higher stall converter, custom grind cam to match the stall and heads and then a tune. you will come out spending much less than the lt4 kit and be much happier.

za355tx

iTrader: (108)

Yeah for 3k you can get alot more than that out if your car.

LE2 heads and cam-$1650
LE ported manifold-$200
Injectors-$200
Long tube headers and Y pipe-$500ish
Bigger throttle body-$200
Torque converter and tranny cooler-$500
Mail order tune-$150

That's a total of $3400 and you'll have a car making close to 400 rwhp and capable of high 11's or maybe ever better with good tires. Much better way to go than the LT4 package. And depending on where you get all the stuff from you can get it cheaper. You can find all that stuff here too. Good luck.

marc97taws6

iTrader: (6)

Definitely go with custom-grind cam for that and head porting.

Advanced Induction/Lloyd Elliott

I don't think $3000 is worth it to JUST keep up with a stock LS1 with full exhaust. Just my .02. Make the most potential out of your needs and do it once and done right

hitmanws6

iTrader: (20)

unless you find a deal on LT4 heads+intake or you are building a clone car, get yours ported and go from there. not worth the brand new price

Lt1Powerz

iTrader: (1)

Okay so Le2 Kit, manifold, long tubes, y-pipe, tune and a stall? Im shooting for low 12's high 11's... Not just LS power...

the_merv

iTrader: (88)

Definately something different than the Hotcam Stuff is you are willing to spend $3k..

RamAir95TA

iTrader: (2)

Take a look at the AI 200cc Dominator package. Proven performance!

tpivette

iTrader: (5)

you can get more power for less $ than the LT4 package

however, youll get more than 330rwhp out of it with the LT4 stuff. i have a LT4 vette thats all stock except for the hotcam and a tune (+ free mods) and the car put down 344rwhp (thats just over 400 at the crank with the 6speed)

imagine if i had thrown some boltons at it (long tubes, catback, EWP, crank pulley, 52mm TB, etc) that took advantage of the heads/cam combo and let it breathe better

NemeSS

iTrader: (127)

lt4 heads are excellent if u can find em used, but for what some of the ported oe castings go for, u might as well get aftermarket castings. like tfs or afr. some quality aftermarket casting for the same price range.

Lt1Powerz

iTrader: (1)

I think i got it down to the LE2 kit. Is anyone running that setup? What kind o power are you running?

StealthFormula

iTrader: (35)

I have LE2 heads with a mild 224/230 cam and most bolt-ons here. My car is auto with a 4000 Stall and I ran 11.80's at 114 my first time out in August heat. That was at 3500lbs. and with a mailorder tune. I had the car dyno tuned and it did 362rwhp/390rwtq with the stall unlocked, locked it has 383rwhp. Taking it back to the track in 2 weeks, should do 11.5 at 116-117 now.

Many people are running the LE2 setups and Ai 200cc packages with great success. They will put an LT4 converison to shame.