well i would love to say lt-1 but im feeling a little bias towards them,everybody says the reliablity of an lt-1 but why did mine with 58,000 easy miles spin a bearing right after i installed cam.after i picked up the car and drove it home it had a knock,didnt even beat it

 

My motor is fine because I didn't touch it. But my tranny went out at 58kmi. My buddy has an LT1 car that he ran nitrous on from 100k to 170k miles and it's still running strong.

 

To me it is luck of the draw. I bought my 95 formula with 76k and it had a spun rod, which caused some other damage. that meant 383 rebuild. Get 383 built and blow the tranny in less than 500 miles. First good spin above 5k rpms.

I know several LS1s with 100k that are not having these problems and i also know of several LS1 N/A stock displacement f-bodies in the 10's. Hell one has untouched heads. So I would have to say if i could. I would own and LS1 but hell i am not rich and i don't so i am happy with my LT1.

Later,
JoMo

 

Sorry, but I feel the need to interject that there is an LT1 in the 8's...very low 8's. Something like 8.04. Should run high sevens if once it gets back to the trak.

 

I was goin to say something there too but I figured why bother. And it might only **** people off if I said it. Another interesting fact is most, if not all, of the LS1 cars in this category are running iron blocks which IMO isn't an LS1 but an entirely different animal. I can put a big block in my f-bodied car but it wouldn't be an LT1 would it? And anybody can throw a ton of money at a car, (assuming they had it of course), and make it fast. But who can do it for less?

 

Good grief there both awesome engines!!
man their in f-body's for crying out loud, either one will kick azz once you mod it...end of story...
The LS-1 is just faster off the show room floor than the LT1.
Both engines under normal driving conditions are reliable, and will only require the normal maintenance and replacement of the wear and tear items...

 

You obviously never read. Check GMHTP out every now and then. Im sure you will see an LT1 running more MPH and quicker ETs than any LS1 I have ever heard, read, or seen.

How many LS1s have you seen go 10s at the track for more than one season without having ring problems? Now compare that to LT1s... doesn't happen. LS1s are great bolt on motors, I just wouldn't get in one and consider it reliable by any means.

 

Absolutely correct. But again I didn't want to **** anybody off.

 

One other thing I have noticed comparing the 2 is a stock automatic LT1(same configuration) onb average is a little closer to acceleration to an LS1 than a manual is to a manual for example.(these are good-average times)

96 Formula coupe auto 3.23 1/4 mile 13.9@100
99 Formula coupe auto 3.23 1/4 mile 13.5@105

97 Z28 coupe 6spd 3.42 1/4 mile 13.7@102
99 Z28 coupe 6spd 3.42 1/4 mile 13.1@108

Do you think its becauseof the LT1's broad,fat torque,which is better suited for the auto,and the LS1's top end power,which the manual can take advantage of better?

 

Interesting comparison but I would like to see more information. Like 60 ft times and what tires the cars had, etc. It does make sense that in stock trim the 6-sp would prevail. But put the right torque converter it's a hole different ball game.

 

01 WS6
stock trans
stock bottom end
stock rear

9.97 (in the 1/4)

still going strong
no blower
no turbo
175 shot

 

That's impressive. Maybe I could do that with my light weight "shell on wheels" LT1 car. It's worth a try.

 

Both Lt1 and ls1 are good engines..but lets look at why a ls1 is faster stock first...longer stroke 3.625 vs 3.45 and the ls1 has a smaller bore than a lt1 ,but the ls1 has a 15 degree head..so what is a ls1? its in essence a small bore stroker with 15 degree heads they should be a second quicker from the factory..
now let switch to the other extreme (over all hp/ET) hmm lets see for comparison sake:

george baxter 383 ci., 23 degree heads, supercharged (convertible to boot)= 9.04
wade 420+ ci, 11 degree heads,n20 = 8.71

ok so whats making more power? thats easy the smaller lt1


now for the kicker

all motor

s.a.m.s 430+ ci ls1 15 degree heads, manual trans (jericho) 4.30 gear =9.71

so no name guy 388 ci lt1 23 degree heads, th400 4.11 gear = 9.86

need I say more?
dont get me wrong I like both engines, but as far as power production, longevity they are both on the same level. and considering the Lt1 started out a second slower from GM I'd say by the comparisons above that gap has closed ...

 

full interior

 

Hey you guys I am in the envyious postion of having a 95 LT1 Z28 Camaro which is he best car I have ever owned in my many years of driving and I have just bought a 99 LS1 Z28 Camaro a few days ago. both started life as A4 2.73 gear cars but the LT1 has a few bolt on mods now.

I must say on first impressions the LS1 feels faster everywhere than the LT1 and the LT1 has 3.73's now. ( can't count my Nos cause I aint got it working yet )

I can't get over how quiet the LS1 is yet it goes like stink and I got 30mpg on the highway when I picked up the car my LT1 only does 20 mpg.

So far the LS1 feals Vastly superior but I will have to take it to the track and see how it does against the stock LT1's 14.22@98 mph 2 years ago when it was stock.