lt5?
lt5? how would one get a lt5 kit? it was in the 95 corvettes i think, one of the early 90's vettes. those were supposed to be badass and just wondering if there was a cam/head package out there for the conversion
There is no kit available because the LT5 has NOTHING in common with an lt1 or lt4. It is a completely different engine designed by another company for GM. You can find them every once in a while for sale if you look hard enough and if you got around $50,000 to spend! So if you want a bolt up kit stick with LT4.
No its a completely different motor, It is a dual overhead cam v8, were as the lt1 is a over head valve engine( camshaft in the block) aka push rod engine. Would be more trouble then its worth to try to convert as well as you’d be better off buying the lt5 or lsx based engine if you were going that rout. Many many things would have to be changed.
oh man i feel dumb, i totally forgot it was dual overhead cam, sorry brain fart, but i did hear they were badass
also, is it worth converting to lt4? i've heard ported lt1 heads and a nice came for the same money will gain more power.
also, is it worth converting to lt4? i've heard ported lt1 heads and a nice came for the same money will gain more power.
Staging Lane
Joined: Aug 2005
Posts: 78
Likes: 0
From: The City of Trees
LT1 and LT5 = completely different animals. You'd probably do better with a package from Lloyd Elliott (www.eportworks.com). I haven't had him do my work yet, but his offerings seem to be the best bang for the buck and others on this site have recommended his services.
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Staging Lane
Joined: May 2005
Posts: 61
Likes: 0
Does anyone actually know who built the motors? Kinda curious. They are fast, but not as badass as you would think. There is a guy here in town with 2 ZR1 vettes (one has just over 100 miles!!!!!!), the other he street races. A guy with a stock ls1 with catback beat him by about 2 cars.
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Verdad Gallardo yea i looked at lloyd's stuff and i am really thinking of going with the stage one heads/cam package. on this he needs my heads and cam? and all of this before he sends me the new ones? that kinda sucks but i guess that is the only safe way for him. anyone use him? what is the down time? since my car is my daily driver and all
Mercury Marine built the LT5. It was designed by Lotus. 500HP from an LT5 is cake, and the ZR1 vette (what the lt5 was in) still holds the 24hr endurance record at something like 188mph AVERAGE. 
http://zr1netregistry.com/ZR1_faq.htm
http://zr1netregistry.com/ZR1_faq.htm
Originally Posted by StreetKing
Does anyone actually know who built the motors? Kinda curious. They are fast, but not as badass as you would think. There is a guy here in town with 2 ZR1 vettes (one has just over 100 miles!!!!!!), the other he street races. A guy with a stock ls1 with catback beat him by about 2 cars.
ZR1 corvettes are probably one of my all time favorite vehicles. As others already mentioned, the LT5 was designed by Lotus and manufactured by Mercury Marine, IIRC. The motor comes stock with a little over 400 hp, but they're extremely easy to get horrid amounts of power out of. The injection manifold is extremely unique, as it looks much like a TPI plenum on steroids...
TECH Resident
Joined: Jul 2005
Posts: 861
Likes: 0
From: Midland
Lingenfelter used to have a package for the LT5 that made 600hp and revved to like 8k or so through the stock exhaust/cats and was emissions legal. The price was probably very, very, ugly though.
Staging Lane
Joined: May 2005
Posts: 61
Likes: 0
Originally Posted by sbcgenII
Thats funny because they seem to be pretty even with c5 zo6's
Originally Posted by StreetKing
Keep laughing then because I watched them race twice. Im sure driver had alot to do with it. Whats even funnier is the camaro is a auto with stock converter, stock gear, everything other than catback. He won both races by at least 2 cars.
TECH Resident
Joined: Jul 2005
Posts: 861
Likes: 0
From: Midland
Originally Posted by buffman
I do recall that traction can be horrible with the zr-1 even with meaty tires their suspension is nothing like a new vette or even camaros..
On The Tree
Joined: Oct 2003
Posts: 195
Likes: 0
From: Upstate NY
Originally Posted by Heatmaker
The Lt5 is a nice engine... too bad the aftermarket for it is NON-existant.
Yea, so is finding someone able to work on one.
The LT5 is one of the coolest looking engines of all time IMO.
On The Tree
Joined: Jun 2004
Posts: 148
Likes: 1
From: pennsylvania
Originally Posted by StreetKing
Keep laughing then because I watched them race twice. Im sure driver had alot to do with it. Whats even funnier is the camaro is a auto with stock converter, stock gear, everything other than catback. He won both races by at least 2 cars.
Sorry man, im not calling your story BS, but I find that EXTREMELY hard to beleive...I think I can chime in on this considering I own a ZR1. The only way that could be possible is if the vette had some serious traction problems off the line (or didnt have the secondary set of fuel injectors turned on
). Even considering the tractions problems after about 50mph or so the vette would pull BIG TIME on the camaro. I have raced many cars with my vette, even full bolt-on ls1 f-bods arent a race (and they are NOT slow cars). The only lsx based cars somewhat comparable to a zr1 are the C5 ZO6's and the C6 coupes....and even then after about 80+ mph the LT5 engine will start to pull on them. I'm not going to even mention the new C6 ZO6 because that vehicle is on a whole different level 
. The reason that these cars (ZR1's) do so poorely in the 1/4 mile is due to the lack of traction, and the fact that the car doesnt really come alive until it is just pasing the marks at the end of the track. The closest race I had was against an 04' porshe carrera (twin turbo, awd), and that race was basically dead even the entire way up until about 145mph when we stopped. By no means am I saying that the ZR1 is "un-beatable" because it isn't, just like any other high-performance car it has its strong points and weaks points. 
