I'm trying to build a Lt1 for my b-body chevy and it will be a daily but I want it to have power also. What upgrades can I make to the lt1. The motor has been broken down already. I'm ready to reassemble when I find what parts im using. I'm using a rebuilt 460le trans and posi w/ 3.73 gears. I have $4000 as a budget for the engine only.

I'll keep it simple.

Reuse your bottom end if its in good condition.

Trash your stock pistons get some forged ones.

Have your stock heads and intake ported here

Here
http://www.elliottsportworks.com/policy.html

Or

Here
http://www.advancedinduction.com/

You get an custom cam of your choice with one of Elliott's le1-le3 package

You can just have him do up the heads too with new RR and springs etc. etc. and be ready to bolt right on when you get them.

Bigger TB

Torque converter

I'd go ahead and get an new opti too unless yours is still good or rebuildable

There a lot of little other things you can do too.



That shit alone will get you into High 300 to low 400 hp. Whatever you do dont waste your money on no Bullshit LT4 kit unless you just getting it for stupid low price.


Go with headers an a cat back exhaust


Make sure you get ya pcm reprogrammed after all that shit too, other wise all the work will be for nothing. Get it done by PCMForless












I aint not motor guru or nothing, those just some things people usually go about when working on these lt1. Some of that shit will probably be the way I go when I get done with my motor here.

Run you a GM 845 cam. Get this too LTCC http://www.bailey-eng.com/LTCC.html

Uses Optispark as a Crank trigger and gives you LS1 style coil on your LT1.

Headers you have cheaper options then B body specific headers.

I cant tell you exactly but ive seen 4 B bodies personally with headers. I was told 69 camaro long tubes will work with some work. Cutting part of a brace, and moving the AC lines.

Holla at IRAQWARTROPHY.

He'll have you close to 400hp with JUST BOLT-ONS.

He did all the bolt-ons to his shit first...THEN he did heads and cam.

Get on www.impalassforum.com them guys will get you right.

Iraqwartrohpy is also on that board

@ what bolts on he got that get him to 400hp

not possible from what I read/heard/been told, must be spray or a supercharger on low boost only way Im seeing that.


But Like I said hit them links I gave you and do the heads and cam plus all supporting mods and you at 400hp easy..

Im guesing thats what he ment but didnt say IDK. LOL

Yeah thats what Im thinking, I aint calling no one a liar, but if those arent the "bolt ons" that got him to 400+hp without doing heads and cam then I wanna know the secret formula (no plankton from spongebob)

even if those were his bolt ons, it would be smart to do a heads and cam with an supercahrger.

I decided to put the lt1 build aside for right now while I'm piecing the parts together but decided to build a carbed earlier block. I want to build the 388 and decided to go with the Scat Crank w/ splayed 4 bolt main caps and Keith .040 dome pistons. What compression ratios do you usually go after with your 383 builds?

I'm also either going with the super victor or the air gap but what cam and stall setup should I go with? And what size carb would I need? Going in a B-body mostly looking for tq over 400. I'm going with posi and 3.56-3.73 gears and a 700r-4 trans w/ shift kit.

I'm going with the Vortec heads unless I run across some aluminum heads for a good price. This is a car that will spend alot of time on the street as a daily

As far as the compression ratio goes try to stay somewhere in the ranges of 8.5 or 9:1 comp... Saying that if you plan on driving it daily and plan on running it off non-premium gas.. Anything higher and you gonna be putting 93 in that bitch and thats from experience..

A 670 street avenger holley would do ya right if u could find one cheap cuz they come pretty much out the box tuned for street use... but personally I would look around for a 750 double pumper off craiglist for the low..

as far as cams go.. I say you do some researching and see what people have used in their blue printed builds to get a feel for what kinda numbers they putting out.. but Lunati, Erson, Comp and even Summit brand (if you wanna save some change..) all make good cams.. Make sure you get new lifters while ya at it.

Do you already have the vortec heads yet?

No I dont have anything but the block and the olds parts that was already on the motor. I plan to replace everything since I will be building a 383 but I'm thinking of a 357 depending on funds.

You'll have to ask the man himself. Im probably off by a little bit, but I know he up there in the mid 300's or higher off JUST BOLT-ONS.

The thing is...

Yall like to just dive into shit head first and swap out your heads and cam before you upgrade the basics. Before you even open up the motor, there's a bunch of shit that you can swap for more power. (i.e. throttle body, intake, computer, gears, tranny work, etc...)

I can show yall a list right now that has verified 1/4 mile times of hundreds of Impalas...and there's cars on there with head/cam swaps that are gettin pissed on by cars with bolt-ons.

http://dan.esteban.com/impalass/ReturnTopE...SelectedClass=6

If you do a roller block motor, get a GM 845 cam, or a close variant. Its a good cam that B body guys run in the LT1s. Nice tourqey cam. But.......... since I dont have a roller motor, I cant realy recomend a cam. And since Im not a motor builder I have no idea what would work for you needs.

You need an all around balanced components that all work together.

Good that you set a goal of what you want.

I would say if your can get a 406 vortec headed motor. You can prolly build it for 4k max and it will run.

My dad did that in his 69 camaro 8.40s on street tires 2.2 60ft (left slow and easy) and drove it up there.

He dont really need to swap out his heads really, I was just tryna save him some weight by saying grab some stock aluminum heads and have them worked. He could just have the irons worked if he wants...A throttle body will not give you any noticeable power gains alone Esp if you dont have your intake ported to match a bigger TB.. But True gears/and stall/ and worked trany will free up a FEW horses but nothing crazy.

And its all in the tune as well.

I'm putting the lt1 up for a later build but wanted to build a non-roller block so you may be able to help me. What do you reccomend on a 350 non-roller. So what cam could I use?

THANK U

Get ur hands on a non roller 350 block preferably a 010 casting.... if u can find one...

New Rods, Pistons, Rings, Bearing and Crank(stay away from them eagle cranks) and make sure you get it balanced and honed @ tha machine shop..

and the Cam depends on the heads, i wouldnt start looking for a cam to get until you figure out what kinda heads you can buy to work with it...IMO

I have one more ? If I use the lt1 block and will the lt1 heads be worth porting or should i get the aluminum ones and imusing the l1 carbed intake they have for it. Or if i find a forged assembly stroker kit for a reasonable price im going with that and maybe run a weaind $1500 blower and what carb would I have to run with? And I'm using the GM845 Cam with roller rockers and new hardened push rods. deep sump 7 quart oil pan with new pump. I'm running a beefed up 700 r-4 with posi-3.73 gears.

just bring 2k to 45th and ya will leave wit somthin runnin prety damn good and that ya can drive anywhere...

Damn 2k? Thats it! :::books trip to j-ville:::

ya dont remember this...

http://www.kingofthestreetgarage.com/forum...st&p=520245

That my mechanic old motor it had done been to the classic(lando) and back doin 100+ both ways and all over duval before it was sold and its been over a yr and its still runnin strong too wit no probs a older cat got it in his mcss be racing it sprayin it in all....45th ftmfw

Thats cheap what yall be charging to swap motors (take 1 out put 1 in)

Yeah i remember that but i figured that was a 1 time deal.

You makin it sound like 2k will get me runnin at 45th all day everyday

Guy I know builds Lt1 all day long

He had a 93 caprice with an LT1 (for those who dont know, they came with L05 TBI motors factory) Sold for 1900$ pretty quick

But the kicker is his 377 LT1 in his Impmaster (yes impmaster he put a impala/caprice front end on a buick roadmaster) it runs 13s flat 8s in the 8th and is still streetable.

He did a another guys motor in his 96 impala. Not sure what he runs, but his motor sounds sick.

If you were closer to Budds Creek MD he would do it for you. I belive he charges 1300$ to pull and put in whatever you want, Hell have it done within 3 days.

He has alot of cars, If I had some money Id have him put me something together.

BTW thats not his day job hes a HS teacher.