LT1MAN

iTrader: (6)

well im finally ready to build my old LT1, i have a ton of miles on it and i want to rebuild it before it spews oil all over my car going down the road. i read that gm discontinued the LT4 parts and thats what i was planning on doing, my question is what is a good combination yall have tried, and what kind of numbers do they make. should i stroke the motor, im aiming in the price range of $3000 - $5000 to do the motor and rear end. thanks in advance.

burnzilla

iTrader: (3)

Firs off, $5000 should be plenty.
You can rebuild the entire bottem end with an LT1 Dyno-Flo kit.
http://www.dyno-flo.com/index.php?pr=rotassemblies

Second, other than the LT4 Knock Module and some other things, LT4 parts are overrated.
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With that Forged LT1 Dyno FLo kit, youre engine will be more than strong enough for a Supercharger.

I recommend Procharger.
Just make sure youre valvetrain's in good shape, you might need springs, retainers, lifters, rockers, guideplates... etc...

Bigger fuel injectors, fuel pump and a Tune will be required too, but thats the route I would go.

Forged Internals + S/C = Asswhooping's for everyone.

Out1aw

iTrader: (1)

If you are planning to have a good street car with a little more umph to it go with the 355 kits

LT1MAN

iTrader: (6)

how much psi could i run safely with a setup like this?

TAdriven98

iTrader: (2)

5,000 I would think 383 or better yet 396. Check out Golens they have some good prices and packages, a 396 with killer heads and cam combo would be an awesome street/strip car.

blkchevyz

you guys are leaving out the part where he said 3-5 for motor and rear end.
so figure 2k at least for the rear end.



what i would do is rear end, then a nice 355 stock rods, stock pistons, some decent hyper. pistons and a nice heads and cam package.

burnzilla

iTrader: (3)

Hyper pistons suck. You want ALL forged internals, especially the pistons.
You could run 8-12 PSI with a nice tune, maybe more.

But 8-12 PSI is more than enough, plus it would be pretty reliable too. With that much compression, you wont want to be revving over 6000 RPMS either.
But with the HP you'll be making, 6000RPMS will be plenty.

Plus, this Forged kit is only $700, and you can get a Procharger for around 3-4K. If you can afford it, you wont regret it.

Problem is, who is putting all this stuff in? Try and save as much as you can on the labor part, but at the same time you want to make sure its done right.

If it where me, Ive have the bottem end installed profesionally, then I would put the S/C on myself.

Of course the other alternative would me a massive heads and cam kit, but a Tuned Procharger would make more ponies with Forged Internals.... Alot more.
10 PSI, youre talkin about a 70% HP gain, and thats not factoring the new bottem end, new fuel injectors/pump and tune.

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LT1MAN

iTrader: (6)

well im aiming to make around 400rwhp, how big nasty of a rear end do i need? its mostly going to be a street car but i want to be able to put slicks on to go to the track without ripping my rear out. id rather go all motor if possible, but still be able to s/c at a later date.

ls1charged

iTrader: (8)

thanks for the website those are some good deals, has anybody used one of there kits, and how do they like them if they have? thanks

blkchevyz

your going to need a 12 bolt or a 9 inch rear end. they useally run from 1800-2500
depending on your options
if your planning on supercharging it later your going to have to build it for the supercharger then. forgded internals and low compression.the low compression is going to hurt your n/a power. so its going to be a subpar engine till you put it under boost.

Imports_Suck

just build a 355 and throw a nasty head/cam package on it, (such as AI, etc). if you want to go forced induction later, just put a shot on it. that car will run with any low boost supercharged one. with the money for that forged 355, head/cam package, and rear end, you will be putting down what you are looking for and still be able to drive it every day. 5000 should be enough, but you always have to add in extra money for stuff you dont plan on fixing or buying.

LT1MAN

iTrader: (6)

hmmm, well at 3-4K for a supercharger i think im out of my budget, my in-law is a goodwrench master technician (he will be doing most of the labor) and says he can get me a rear for $1000, that leaves me $4000 for parts and labor. i think im going to go n/a. instead of adding a s/c at a later date is it safe to run nitrous on high compression? if im going to have to replace internals i want to go bigger than 355, 383 or 396 would be ideal. could i pull that off with my budget you think?

ls1charged

iTrader: (8)

oh yeah thats def. doable with that much money, u just have to do alot of searching and u can find some really good deals.

95zpro

I just used forged pistons(lowered the compression to 9:1),forged rods,steel crank,.30 bore to a 355 and procharger kit at 8psi. Getting ready to install 42# injectors vs the 30# because I'm running lean on the top end which should allow me to make a little more power as I will not be starving for fuel in the upper rpm range. I probably spent right at $4k(got a heck of a deal on the supercharger) and did much of the work myself besides the tune !

Kanes2413

iTrader: (9)

Im gonna be runing about 6#'s of boost on this turbo im having custom done but im wondering what i should be doin to the engine so i dont blow it. ID like to make some more power but be safe for daily driving what opitions do i have?

LT1MAN

iTrader: (6)

ok, im pretty sure im going to go with the 355 rebuild and add heads and cam. any suggestions on head and cam combos for a 355? i already have mid length headers.

justav6iswear

iTrader: (6)

dont forget to get some pics of the rebuild so we can check it out!

slowmofo

iTrader: (6)

www.eportworks.com
www.advancedinduction.com
www.portpros.com

LT1MAN

iTrader: (6)

advanced induction is in concord, nc which is about 30 mins from here so i think that will work, thanks

ls1charged

iTrader: (8)

hey, i heard u got a new car, looks good in your sig.