Just curious what is the maxium HP ya'll have seen, or read, that someone has gotten out of a LT1...."WITHOUT"....power adders. Want new engine, and really want to stay with an LT1, I like being the underdog,but want LS7 power(500hp)! Any links or ideas would be greatly appreciated!

 

over 700na is the highest i have heard of. it had sb2.2 heads and a single plane intake. any motor can make big hp but it take cubic dollars. 500hp na flywheel on a lt1 is pretty easy.

 

Do a search on Joe Overton . That man is the king of LT1's

 

i believe the phrase is something like cubic inches costs rectangular dollars

 

Eleventy Billion Is The Most!!!!!

 

Is it even an LT1 if it's using non LT1 heads or intake?

 

My opinion is as long as the heads are reverse cooled, its still an LT1. I plan on being over 500 RWHP NA as soon as my motor is back together. Theres quite a few LT1 cars putting 500 plus to the ground on motor, it is not very hard to do, especially with a good heads/cam/intake combo. Most do it with a single plane converted to EFI setup.

 

I don't consider an LT1 authentic when the intake is changed. I'll have a max effort LT4 that will be on the dyno soon.

 

Man I feel stupid, I thought LT1 motors were being pushed to get 400! This great news for me, and only make the decission easier to stay with my LT1 motor. 94strokedz let me know what you are doing with your motor. Thanks everyone!

 

No to me. Its got to have LTx heads and an LTx intake in my opinion.

 

max effort lt4, is this made by Trick Flow?

 

Probably JOe overton without power adders.... that thing made crazy power....

there are several on here that are either building or already have 500 rear wheel hp LT1's that are naturally aspirated...

but i can probably count how many of them have lt1 intakes on 1 hand.... my thing is on lt1 authenticity is the block.... intakes do not make the LT1..... it is like no other sbc.... reverse cooling is one thing but really the LT1 block makes it an LT1... if you are still using that block it's an LT1 regardless of what accessories you put on it...

for example if you put a single plane on it is it a standard SBC at that point??? Uhhhh no.... it's an LT1..... it will always be an LT1....

 

Yes, I have to agree.revise. If it's reverse cooled and the stock intake (and block, opti (coil pack conversion I'll allow), stuff like that) then It's an LTx motor. Aftermarket heads, edelbrock LTx intake, still qualifies because it's just "better" original parts.

 

damn...thought I had the record with 573,000 n/a....

 

An LT1 is still an LT1 as long as it has an opti.

 

We'll all the guys I know around here are running LS1 cars, most of them have been heavly modded and some are running LSX, i just want to be able to have a chance!

 

AGREED

 

https://ls1tech.com/forums/lt1-lt4-modifications/735189-lt1-cam-only-hp-record.html

 

lt1 with opti is an LT1

lt1 with coils is an LTS1

lt1 with HEI distributor is just a three fitty.

 

573K. How many miles did you go without a rebuild?