95TA8280

ok, I've heard te LT1 vs LS1 argument 100000 times, and I just posted in to LS1 forum.......

If the LS1 is soooooooooo much more popular, then why is the LT1 forum so much more busy/active???

Capn Pete

• 1 - the LT1 has been around for 10 years...........the LS1 has only been around for 5.
• 2 - the LT1 is cheaper to work on / repair, so it's more feasible for more people.
• 3 - the LT1 is older, therefore there are more problems with it --- hence, more questions.

Well, those are just a couple reasons.....

Stangdstryer

lt1's been around for more like 30 years,
basically there are way more lt1 f-bods out there and ls1 f-bods, therefore peobably more users with lt1's

V6toZ28

Yep ... I remember when the first computer controlled EFI engine came out in '72

But there are more LT1 4th gens then there are LS1s. Also most of the LS1 owners who are really into it go to www.LS1Tech.com

CZ28 is where most of th LT1 folks on the net hang out

95TealLT1

Before I bought my 2001 Z28 I had a 95 Z28 with a LT1 motor.

Stock the LS1 is approximately 1 second faster in the quater mile. When I get every thing done to my Ls1 that I had done on my LT1 I will probably be running low to mid twelves in the quater mile.

I was only running low thirteens with the 95 and it had K & N Cold Air Induction, TPIS Air Foil, Ported MAF, TB Coolant Bypass, Mac Headers, Mac HF Cat, Flowmaster Catback, Vigilante 2800 TC, Transgo Shift Kit, 3.73 GM Gears, Nitto Drag Radials, 160 deg thermostat, MMC Programmed PCM, LT4KM, BMR STB, BMR Track Pack and DS Loop. It best time was 13.26 seconds at 103 mph.

My 2001 with only a lid, filter and flowmaster ran the same 13.23 at about 105 mph. The LS1 has more top end with a stonger block. I beleive the LT1 on had a 2 bolt main and the LS1 has i think has 5 bolt. The LS1 is much stronger in top end. The LS1 is stronger stock and has more potential if you want to build it to be fast.

Capn Pete

The LS1 block is stronger than the LT1?? Not quite.

The LT1 uses a cast iron "Gen-II" block, similar to the old Gen-I block. I do believe it comes with 2 bolt mains, but the number of bolts holding the main bearing caps on isn't going to affect the power of the engine. The LS1 is a Gen-III block, that is made of aluminum, therefore, not quite as strong as a cast iron block. It's actually got 6-bolt mains to hold the bearing caps on (4 straight in from the bottom like a typical 4-bolt style, and 2 in from the sides to stiffen up the bottom end since it isn't quite as rigid as a cast iron block).

Both the LT1 and LS1 have lots of potential, but the real difference, IMO, that makes the LS1 respond to simple bolt-ons so well is the improved head design & intake, as well as the individual coil ignition system.

I believe guys actually use the Gen-III truck blocks for extreme high-horsepower applications, since the parts are all compatible with the LS1, but they're actually a cast iron block instead of aluminum.

6speedZ28

Its as simple as this, I like this place better

psychocabbage

alot of it is simple $$ issue.. most people can afford an LT1 which is pretty available..


Not everyone can afford an LS1 and they arent the easiest to find..