LT1-LT4 Modifications 1993-97 Gen II Small Block V8

LT4 conversion vs. Lloyd Elliot

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Old Sep 26, 2009 | 04:13 PM
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Default LT4 conversion vs. Lloyd Elliot

I'm sure there has been a thread like this somewhere on this website before, but I'm just gonna do it again outta my own stupidity.

I've got a 96 Z28 M6 pretty much stock other then a few minor things like CAI, Ripper shifter, Magna cat-back, but I don't really consider those performance enhancing mods. I've been itching for some more power, but don't want a pure track car and wanted opinions on what I should go with?

I'm installing LTs and ORY relatively soon and wanted some engine upgrades and I'm stuck between the simplicity of an LT4 conversion kit (although expensive) and givin' old Lloyd Elliot a call. I havent really heard a lot of good things about the LT4 conv. as it is expensive and a rudimentary performance upgrade at best.

I've heard a lot of positive things about lloyd elliot and was wondering if Lloyd requires you to ship him your own heads for porting, or if he gives you new ones? What are all Lloyds requirements/benefits? I know i could very easily find out by giving Lloyd a call, but was wondering if anyone out there knew before I made my decision? Any help would be greatly appreciated...
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Old Sep 26, 2009 | 04:20 PM
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Best bet would be to call Lloyd Elliot or Advanced Induction i havent seen to many Lt4s putting out the power these guys can get ya
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Old Sep 26, 2009 | 04:21 PM
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Not sure what the requirerments are but im sure they are listed on the sites
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Old Sep 26, 2009 | 04:24 PM
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Originally Posted by 96redZ28
I'm sure there has been a thread like this somewhere on this website before, but I'm just gonna do it again outta my own stupidity.

I've got a 96 Z28 M6 pretty much stock other then a few minor things like CAI, Ripper shifter, Magna cat-back, but I don't really consider those performance enhancing mods. I've been itching for some more power, but don't want a pure track car and wanted opinions on what I should go with?

I'm installing LTs and ORY relatively soon and wanted some engine upgrades and I'm stuck between the simplicity of an LT4 conversion kit (although expensive) and givin' old Lloyd Elliot a call. I havent really heard a lot of good things about the LT4 conv. as it is expensive and a rudimentary performance upgrade at best.

I've heard a lot of positive things about lloyd elliot and was wondering if Lloyd requires you to ship him your own heads for porting, or if he gives you new ones? What are all Lloyds requirements/benefits? I know i could very easily find out by giving Lloyd a call, but was wondering if anyone out there knew before I made my decision? Any help would be greatly appreciated...
You answered your own question in the second paragraph. Just shoot an email to LE and give him some time to get back to you since he is swamped right now.

As far as the head shipping, it states on his website that you need to send him your heads as cores, or pay an extra $2xx-something bucks.
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Old Sep 26, 2009 | 04:25 PM
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Well I've heard that people who went with Lloyd had to ship him their cores or something? On his site he just advertises his packages. My only problem with sending him my heads are the fact that if I was gonna do a head and cam swap myself I'd want to put new ones on not my current old ones, but at the same time I'm not sure if the work llod does will make my current heads as good as new?
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Old Sep 26, 2009 | 04:29 PM
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If you didnt send him yours then he would use somebody elses cores. So your not going to get brand spanking new heads. They will be cleaned, ported, milled etc with new springs and all the good stuff. So they will be as good as new if not better. If there are nothing wrong with your heads then you have nothing to worry about.
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Old Sep 26, 2009 | 04:36 PM
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Call LE.
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Old Sep 26, 2009 | 05:15 PM
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Alright it decided, LE is whats up. Screw the LT4 conversion, unless there is some freak of nature out there with an LT4 conversion, who can testify to having a better hp gain that is less expensive than going with Lloyd.
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Old Sep 26, 2009 | 06:11 PM
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while not an fbody...

i have a LT4 Corvette. its stock except for the hotcam, some free mods, and a tune. still has the factory catback and exhaust manifolds. im also on the stock 98k mile clutch and street tires, with the factory 3.45 gears. my car put down 344rwhp and ran 12.2 at 116mph on a PCM4less tune. if it was dyno tuned and had a better clutch and tires im sure the results would be even better

dont know if that helps, as im not sure what the conversion on an LT1 would do in comparison to just the hotcam on a real LT4 like mine. however, my car does show the potential of the LT4 hotcam and heads
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Old Sep 26, 2009 | 06:19 PM
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Originally Posted by tpivette
while not an fbody...

i have a LT4 Corvette. its stock except for the hotcam, some free mods, and a tune. still has the factory catback and exhaust manifolds. im also on the stock 98k mile clutch and street tires, with the factory 3.45 gears. my car put down 344rwhp and ran 12.2 at 116mph on a PCM4less tune. if it was dyno tuned and had a better clutch and tires im sure the results would be even better

dont know if that helps, as im not sure what the conversion on an LT1 would do in comparison to just the hotcam on a real LT4 like mine. however, my car does show the potential of the LT4 hotcam and heads
You are also much lighter than an f-body. The 344whp is what a cammed LT1 can put down (on stock heads). Your ET/MPH shows that your car uses it well.
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Old Sep 26, 2009 | 06:31 PM
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Originally Posted by 96redZ28
Alright it decided, LE is whats up. Screw the LT4 conversion, unless there is some freak of nature out there with an LT4 conversion, who can testify to having a better hp gain that is less expensive than going with Lloyd.
i should be hitting low 11s with the old LE2 package, Lloyd is the man for customer service too!
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Old Sep 26, 2009 | 06:37 PM
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Originally Posted by RamAir95TA
344whp is what a cammed LT1 can put down (on stock heads).
not with the hotcam, especially if the LT1 heads are unported. itll also take a good assortment of boltons in addition to that cam to reach that number as well. takes more than just a cam on a stock LT1 to gain 80rwhp

C4s arent that much lighter than LTX fbodies. 3400 lbs is typical for a fully optioned LTX Vette without driver

yes, my car runs well, but its because i can drive. i dont go down to the track once or twice a year, but almost every weekend until i wring out the full potential of my setup. practice makes perfect with a M6 car
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Old Sep 26, 2009 | 06:43 PM
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You say that it takes a good bit of bolt-ons as well, but no one would do a cam without the usual bolt ons - intake, catback, headers, tune. Pretty simple, run of the mill stuff. Those Hotcam cars make 330-345 RWHP all day.
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Old Sep 26, 2009 | 06:46 PM
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Originally Posted by 94Z28rag
Hotcam cars make 330-340 RWHP all day.
unported heads, boltons, and the hotcam? add 80rwhp? what do they run?

links to proof please as i was not aware of this
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Old Sep 26, 2009 | 06:49 PM
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Originally Posted by 94Z28rag
You say that it takes a good bit of bolt-ons as well, but no one would do a cam without the usual bolt ons - intake, catback, headers, tune.
i didnt do any boltons when i did my hotcam swap. wanted to see what id gain "as is" on an LT4

the post i quoted made it seem as though just slapping a cam on an otherwise stock LT1 was going to make 80 more rwhp
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Old Sep 26, 2009 | 06:57 PM
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Originally Posted by tpivette
unported heads, boltons, and the hotcam? add 80rwhp? what do they run?

links to proof please as i was not aware of this
Okay:

http://www.youtube.com/watch?v=-xnx3868CSM

https://ls1tech.com/forums/lt1-lt4-m...ml#post2823069

https://ls1tech.com/forums/lt1-lt4-m...ml#post2825907

https://ls1tech.com/forums/lt1-lt4-m...ml#post3181136

I've put in an email to get a friend's dyno sheet as well. I witnessed it do 33X RWHP with a hotcam and stock heads.

No need to be brazen, I'm just telling you what I've seen. It seems pretty commonplace for hotcam/bolt-ons to be 330+ RWHP.
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Old Sep 26, 2009 | 07:10 PM
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http://videos.streetfire.net/video/9...cam_381146.htm Thorugh a 9".
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Old Sep 26, 2009 | 07:22 PM
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not trying to come off as "brazen" just havent seen those kinds of #s for myself or posted over on www.corvetteforum.com

your average LT1 dynos around 260rwhp stock. adding a hotcam usually bumps that up another 25 rwhp. youd then need another 50 or so rwhp from boltons and a tune to get the rest. i just havent seen your average LT1 gain that from simple mods
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Old Sep 26, 2009 | 07:26 PM
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Originally Posted by tpivette
i didnt do any boltons when i did my hotcam swap. wanted to see what id gain "as is" on an LT4

the post i quoted made it seem as though just slapping a cam on an otherwise stock LT1 was going to make 80 more rwhp
There are plenty of cam & bolton lt1's puttin down 330-340+whp on stock heads. There are plenty of le2 heads/cam stock shortblock cars puttin down 400+whp. Where have you been lol?
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Old Sep 26, 2009 | 07:34 PM
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Originally Posted by 94Z28rag
https://ls1tech.com/forums/lt1-lt4-m...ml#post2823069
The heads have been loved on a little, but just shaved down (to true them up) and light porting and port matching for intake

https://ls1tech.com/forums/lt1-lt4-m...ml#post2825907
ported heads, LT4 hotcam, Ed Wright tuning 380rwhp/363rwtq
the first two examples had work done to the heads, while the third wasnt really specific about his mods
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