samuelblake

A guy in a post on here made mention of an LT-5 engine. I did some searching up on google and found facts about it but still would like to know a lil more.

Are they built on the LT-4 bottom end or what? From the pics I saw it looked like it had an OHC setup. Not real sure. Please tell me more about this engine. Thanks.

JetLag

The LT5 is a Dual Overhead Cam motor, its not based on the LT1/LT4. Its the engine they put in the ZR-1 Corvettes in the early 90's. Thats about all I know about them...

Hh yeah, high 300 to around 400hp too, but expesnive to replace stuff as you could imagine.

JKDZ28

kinda like a super TPI L98 engine , with the long runners and everything

lt4 fd

Go to www.zr1.net to learn everything about them, they are amazing.

Zepher

That is the motor I am going to be putting into my 86 Trans Am when I come into a lot of cash.
I want it for it's uniqueness and look, since it isn't a cost effective method of making power. 0 Mile LT5 is going to cost around $10-18K.
There was a sweet deal on ebay 2 weeks ago, $15,500 for a 0 Mile LT5 & 0 Mile ZF-6 Tranny, both still in the crates.

JetLag

I also seem to remember that the reason they went with a DOHC motor was because at the time it was devolped an manufactured was when OHC engines were becoming very popular and thee were lots of peppy and quick sport coupes with turbo's and all kinds of stuff using 4 cylanders and 6 bangers. (Ford Probe GT, Eagle Talon, VR4, Steath TT, etc..)

Many car manufacters thought GM was behind the times or simply couldnt make a good "modern engine", that we were stuck with our traditional small block and we couldnt get any new ideas.......so that was part of the reason they used the LT5, it showed them we could do it but that we just prefered not too, and on top of it, we did a BAD *** job of it.

( I forgot what other car manufacter helped us build the LT5, it was Lotus or something foriegn like that )

samuelblake

"kinda like a super TPI L98 engine , with the long runners and everything"

When I went and searched it up on google, I saw some pics of it and to me, it looked like a glorified L98 TPI engine due to the TPI style intake but I didn't think it was because of the LT in its name. That engine is freaking awesome. Just looked up some facts...it has 405 HP and 385 Foot Lbs. Torque. Thats Z06 HP from a stock engine from 10-12 years ago. That thing freakin' rocks. If I ever win the lottery <that I never play>, I am going to get one of these and put in an RX-7 or a Supra and make everyone think its a turbo'ed inline six or a rotory engine <wink>. Man that is freakin' awesome though. Go here for pix: http://corvetteactioncenter.com/specs/zr1/lt5specs.html

Also...I love the Head Covers that say "Corvette" on them. I know the LS1 & LT1's have fuel rail covers that say Corvette on them, but those Head Covers that say them are just bad ***. <drool>

Dr.Mudge

It was made to go against the Viper offering, many moons ago. It did ok but for around 80k, it was a hefty price to pay for what now is amazingly, very easily attainable HP in a smoggable engine setup.

Overall, its about a 15 year old setup, let it build its dust in some collectors garage, get an LS1 instead.

samuelblake

"Overall, its about a 15 year old setup, let it build its dust in some collectors garage, get an LS1 instead."

I agree that the LS1 would be the best bet but I would want one just because of its rarity. I mean if I won the $200 million dollar lottery, $18,000-$25,000 for an engine wouldn't even make a scratch on the money.

But like I said if I ever win the lottery (which I never play), I'll buy one. Actually, if I win the lottery, I'll buy all the senior members of this forum one also <wink>. How about that? LT-5's for every senior member <wink>.

Dr.Mudge

If I had 200 million, and I wanted to collect, I'd snag a 69 ZL1 Camaro, not only rare but it was quite the monster with just a few mods, over 500HP documented, I think 523HP was the number. Opening up the exaust, new carb jettings, and little else.

Then a Z06 for a daily beater, and I'm sure various other toyz.

FireAm94

Was that horsepower figure before they restructured the hp ratings system? Just curious....from what i've seen our cars would have hella horsepower with the old system.

Joe

Dr.Mudge

Fire, this was a dyno test of a ZL1 that was done just a few years ago. I dont know if it was crank, wheel, or what. It was tested as 375HP in stock form, which is what Chev was rating some of the 396 cars at the time, so it didn't sound like that hot of an item. Opening up the exaust, changing jets, 2 1/8" headers, and I forget what else - opened it up big time.

I just remembered what site I posted it at, here you go:
http://www.camaros.org/copo.shtml

Removing the alt is obviously a track only thing, that doesn't say street car very well does it.

FireAm94

Geez man....those headers double for a Ricola commercial??? LOL

Joe

Dr.Mudge

Aluminum big block 427 has alot of air to dump

DiabloZ

I just have to chime in and say I think the LT5 was one of GMs ultimate engines. I saw one on Ebay a while back with 12K and came with all the wiring and every thing needed to run it in a project car for a buy it now of $10K. Some day I will have one of these under the hood of a fourth gen. Z. 32 valve, quad cam monster