lt1 or ls1

[GasGuzzler]

[Z88 sd]

IMO if i didnt do a gen III swap i would go with a 96 to 00 5.7 vortec truck engine. just my

[4doorvett]

I bought my GM Delphi optispark distributor from thepartsladi @ e-bay, $250 to the door. Now the one before that was from a no name parts supplier and it crapped out on me after about 90 days! The original GM optisparks IMO are the bEST best out there, just don't buy it from the parts store or GM, OVER PRICED as usual! I know guys making 400-500+ hp with these optis with no problems.

[C-WAY]

Ls1 Ftmfw!

[chevy1500z71]

iv never seen so much bad information, the first post in this thread suggested an ls1 easier swap than an lt1 ... an lt1 is the same sbc block that the truck left the factory with, of course its easier. both motors perform, ls motor takes less parts to make power, lt1 parts are so cheep you can build it just as powerfull for probably less money, and the initial cost of an lt1 is MUCH cheaper. to the original poster, i would try other forums, ones with a more well rounded knowledge base rather than this site, its got good knowledge for ls based motors but thats it, its extremely bias... EXTREMELY! lol

my vote is lt1 just for the ease of it, ls would be cool too, but not worth the extra money and time. it also depends alot about what your using the truck for, becasue those 2 motors shine in very different areas, even if this whole forum will tell you that ls motors are superior in every aspect lol, becasue honestly they both have their ups and downs. in a big offroad rig, an ls motor would be stupid, wont have nearly the low end grunt, but on a street truck, the ls would probably be the winner becasue its such a great high rpm motor compared to an old school sbc.

when it comes to quality either one will be a built motor, the ls wont be any better or worse in quality than the lt1, its all about what you build. with an old school sbc, you can built whatever the hell you want so its hard to compare the 2.

[RedHeartbeat]

Funny coming from someone that doesn't have an LT1 or LS1 in their vehicle and only 5 posts on here. I have done both conversions and both work but I will never again do a LT1 in anything other than a restoration. The LSx based engines available today have better technology and more low end grunt than the LT1 ever did from the factory. Dollar for dollar the best conversion is the LSx based swap.

[ff_jeff]

iv never seen so much bad information, blah blah blah.

OK since you think you know the answer... answer the op's question. Dont just come in here and dis the site. And its members.

[HarleyDave]

I'm on my (in my F-body)second Opti, well it's going out too so I'm considering an LS swap in lieu of replacing it for the third time. and as Greg said have a 97 (LT1)F body and 99(LS1)F body, and there is no contest the LT1 is fast but the LS1 will smoke it. I think the thread was what was the best swap and most of the post said that the LT1 makes power and it does, but long term the LS1 is the way to go.

[GasGuzzler]

an lt1 is the same sbc block that the truck left the factory with

....expect the OP has a 4.3.

[Z88 sd]

iv never seen so much bad information, the first post in this thread suggested an ls1 easier swap than an lt1 ... an lt1 is the same sbc block that the truck left the factory with, of course its easier. both motors perform, ls motor takes less parts to make power, lt1 parts are so cheep you can build it just as powerfull for probably less money, and the initial cost of an lt1 is MUCH cheaper. to the original poster, i would try other forums, ones with a more well rounded knowledge base rather than this site, its got good knowledge for ls based motors but thats it, its extremely bias... EXTREMELY! lol

my vote is lt1 just for the ease of it, ls would be cool too, but not worth the extra money and time. it also depends alot about what your using the truck for, becasue those 2 motors shine in very different areas, even if this whole forum will tell you that ls motors are superior in every aspect lol, becasue honestly they both have their ups and downs. in a big offroad rig, an ls motor would be stupid, wont have nearly the low end grunt, but on a street truck, the ls would probably be the winner becasue its such a great high rpm motor compared to an old school sbc.

when it comes to quality either one will be a built motor, the ls wont be any better or worse in quality than the lt1, its all about what you build. with an old school sbc, you can built whatever the hell you want so its hard to compare the 2.

Its not hard to compare the two, just ride in a car or truck with a genIII V8 and you'll see which ones better.
Think he just joined to give his measly on this topic., do you even know what a LS base engine is.