LT1 or LS1

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Old May 3, 2005 | 01:24 PM
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LT1 or LS1

Now that I'm on the topic, which engine should I get. The LT1 or LS1? What are the pros/cons? And yes you can bash me for being a newbie, I have searched and figured out some stuff I just want to get a concensus on what you guys who have the experience think is best. Thanks in advance
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Old May 3, 2005 | 06:07 PM
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LS1 is smaller and lighter. LS1 has aluminum block while LT1 does not. However, both engines have huge mod potential, and the LT1 is probably your best bet if you're looking for HP in the 4-digit range. For a fun daily driver/track car, either engine will work fine. The LT1 is significantly cheaper than the LS1 right now, as far as I know.
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Old May 3, 2005 | 07:38 PM
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depends on how much money you got.
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Old May 3, 2005 | 08:16 PM
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Go with the ls1 if you can afford it.
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Old May 3, 2005 | 08:23 PM
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Originally Posted by dregg100
depends on how much money you got.
Exactly
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Old May 3, 2005 | 08:37 PM
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20b
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Old May 3, 2005 | 10:34 PM
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LS1 is lighter than the 20B slug.
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Old May 3, 2005 | 11:10 PM
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LS1 can be found cheap if you look hard enough. I got my setup for much less then most pay, by watching around for a while (think 1.5 years) for the right deal. The best buys are wrecked cars. Also helps to have friends in the business.
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Old May 4, 2005 | 08:09 AM
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Thanks everyone. I'll be sticking with my original LS1(6) idea. This is a two year project anyway, so I'll take digitalsolo's advice and wait for a good deal. The more money saved, the more money for mods
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Old May 5, 2005 | 12:02 AM
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Another point of reference about your LS1(6) comment.

LS6 accessories don't fit very well in the FC engine bay, and the oilpan doesn't fit at all. That and the LS6 typically costs more then the LS1. Best bet is to get an LS1 in the years that came with the LS6 intake, put in a bigger cam then the LS6 had, and port (or buy ported) heads. MUCH more power then the stock LS6, accessories that fit, and not much cost difference.
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Old May 5, 2005 | 12:10 PM
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Originally Posted by digitalsolo
Another point of reference about your LS1(6) comment.

LS6 accessories don't fit very well in the FC engine bay, and the oilpan doesn't fit at all. That and the LS6 typically costs more then the LS1. Best bet is to get an LS1 in the years that came with the LS6 intake, put in a bigger cam then the LS6 had, and port (or buy ported) heads. MUCH more power then the stock LS6, accessories that fit, and not much cost difference.
Awesome, thanks for advice, LS1 it is. What years do you recommend for the LS1? Are there any years to avoid?
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Old May 5, 2005 | 12:47 PM
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Digitalsolo is right about the LS6, which is also true about any Vette motor. The best motor is an 01-02 LS1 from a fbody cause some stuff is updated and they have the LS6 intake manifold and no egr. 99-00 is fine but I'd stay away from the 98s.
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Old May 5, 2005 | 01:16 PM
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Originally Posted by GsrSol
Digitalsolo is right about the LS6, which is also true about any Vette motor. The best motor is an 01-02 LS1 from a fbody cause some stuff is updated and they have the LS6 intake manifold and no egr. 99-00 is fine but I'd stay away from the 98s.
Now I'm glad I didn't buy that 98 ls1 I found last night. It is kind of good to have a year to plan everything, although I can't wait to get this thing on the road. Thanks again guys.
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Old May 5, 2005 | 02:04 PM
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Is there a good place to find detailed instructions on doing the LS1 swap? I know grannies has one, but is there any more? When I search all I find are people pointing you to torquecentral or this forum, but no one points to actual detailed instructions. Is it really that easy to do the swap? By reading through grannies instructions it seems pretty simple.
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Old May 5, 2005 | 05:55 PM
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I decided to go with the LS1 (01-02). Have you try Hinsonsupercars.com?
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Old May 5, 2005 | 08:03 PM
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I'm definitely going with Hinson for my subframe and a couple other things. I've also thought about sending them my car when the time came (although that definitely seem as fun). I've heard way too many bad things about granny's. But still there isn't any detailed instructions on the swap there. I mean I'm sure I could figure out what I needed to do with the instructions from granny's and pulling bits here and there. I was just seeing if anybody else knew where some other complete instructions were.
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Old May 5, 2005 | 11:22 PM
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Everyone points you to TC cause you can find everything you need there.

A member over there created this page which should get you started.

http://payne.stanford.edu/LS1-FD-links.htm
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Old May 6, 2005 | 07:11 AM
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Originally Posted by GsrSol
Everyone points you to TC cause you can find everything you need there.

A member over there created this page which should get you started.

http://payne.stanford.edu/LS1-FD-links.htm
Oh sweet, well now I feel dumb for never seeing that before. Thanks dude!
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Old May 8, 2005 | 02:27 AM
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What bad things have you heard about the granny's LS1 mount kit? I haven't heard anything bad about theirs.
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Old May 8, 2005 | 11:42 AM
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Originally Posted by xthephilx
What bad things have you heard about the granny's LS1 mount kit? I haven't heard anything bad about theirs.
Then you need to look a little harder. The words Granny's and LS1 shouldn't be mentioned in the same sentence.
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Old May 8, 2005 | 12:17 PM
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Originally Posted by xthephilx
What bad things have you heard about the granny's LS1 mount kit? I haven't heard anything bad about theirs.
https://www.rx7club.com/v-8-powered-rx-7s-299/anyone-considering-v8-conversion-kit-grannys-140838/
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Old May 8, 2005 | 05:32 PM
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Okay...f that then. Is the hinsonsupercars.com one good?

And how bad is the bump steer correction? Is it as bad as grannys makes it seem?

And what exactly does it (bump steer) entail?
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Old May 8, 2005 | 05:57 PM
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In the case of Hinson Supercars' minor steering rack relocation on the subframe, the tie rod ball joint is lengthened and lowered on the spindle to maintain it in the same plane on the spindle with the upper and lower A-arm pick-ups. Factory wheels barely clear it. Check FSM Section N-16 for diagram.
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Old May 8, 2005 | 11:04 PM
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I don't have a copy of the FD FSM. Is there a site where I could get a copy?
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Old May 9, 2005 | 01:39 PM
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http://www.iluvmyrx7.com/
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