What are the big diff. btw. the lt-1 and the ls-1? How much faster does a stock ls-1 run in the 1/8 and 1/4 than the lt-1? What all does it take to hang with a ls-1 or to beat it? How much money would it take and what exactly would someone with an lt-1 need to do? Thanks guys!!!

 

better brakes, better engine design, more power, newer, more expensive.

Full exhaust, headers, catback, ypipe, and cold air are usually enough for an LT1 to edge out on an LS1... depends on auto vs 6 speed etc...

 

Aluminum block, cam design bunch of different things, just do a search and you'll find a lot of information basicly an ls1 will run .5 to about a second faster in the quarter then an lt1

 

Stock

LT1 F-body- ~14.1

LS1 F-body- ~13.8-.7

 

a stock lt-1 can see a 13.9 1/4 with the right track conditions, driver, elevation. etc.

 

There is usually 50-60 RWHP difference between totally stock engines.

 

Do a serach man, you'll find a 100 different threads on this same topic.

 

if you are comparing stock vs. stock, it pains me to admit the LS1 wins. I recall a GMHTP article where Evan Smith ran a 13.0 with a stock 98 Z28.

 

IIRC, Evan Smith also drove a bone stock 99 WS6 to a 12.8. That's pretty good for a Ford guy.

The LS1 is way different. The only thing that is really the same is the bore spacing, and I believe you can use the same rod bearings, but thats about it.

The LS1 has:
346 cubes (3.90"bore x 3.62" stroke)
18 degree heads from the factory that flow like a mother
Alum heads and block, composite intake manifold
1.7 rockers
I-E-I-E-I-E-I-E valve arrangement
Coil on plug ignition, no distriubutor

The LT1 has:
350 cubes (4.00"bore x 3.48" stroke)
23 degree heads from the factory (similar to the traditional style SBC heads, and well, so is the motor, for the most part)
Alum heads (Iron heads for B-body LT1s) and Iron block, Alum intake manifold
1.5 rockers (self aligning)
I-E-E-I-I-E-E-I valve arrangement
Front Mount distributor, camshaft driven

That's all i cant think about off the top of my head. Im sorry, I have a couple LT1 cars, but the LS1 is a far better motor. Worth the insane cost to hop up? Eh, maybe, but I think Id rather an LT1 or even a traditional SBC instead (if money wernt an object, gimme the LSx motor). JMO.

 

Really? well there are a few LS1s on the bored that did 12.9 stock. Lt1s.......well they would never touch that stock. Not even with a 9 tenths long pole.

 

Im a dedicated LT1 driver i love it to death even though we (my motor car & I) have had our differences i would still trade my lt1 for an ls1 any day if the numbers arent enough to impress you drive one your *** dyno will tell you it is allot better. The only thing i think i would have a problem with one would be that they tend to bend pushrods pretty easily if you over rev them luckily i have yet to bend one in my lt1.

"Get to rompin on my LT1"

Nelly might still be popular if he would have sang this instead of airforce ones

 

ls1's have the new age ricey ferrari type sound. lt1's have the deep powerfull muscle car sound