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Lt5?

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Old Mar 22, 2007 | 03:46 PM
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Default Lt5?

hey guys, i heard that the lt5 was gm's first and only shot at a motor with overhead cams. i think someone told me it made 385hp? thought i heard that it was only placed in the vettes so i posted it here. hope its okay. thanks.
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Old Mar 22, 2007 | 04:02 PM
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yea it came in like 92 zr1s or something like that. and from what i understand they are huge. they look like big blocks supposedly
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Old Mar 22, 2007 | 05:11 PM
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I thought the rating was around 400 HP, but I'm not confident in that number.
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Old Mar 22, 2007 | 06:51 PM
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[IMG][/IMG] '90 through '92 were 375 hp. and '93 through '95 were 405 hp. There were a total of around 7000 made.

Last edited by jabrun; Mar 22, 2007 at 06:58 PM.
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Old Mar 22, 2007 | 08:49 PM
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LT5's were made in Stillwater, OK at Mercury Marine.

Go Pokes!
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Old Mar 22, 2007 | 09:10 PM
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yep mercury marine, 32 valve four cam 5.7 litre, one of the most advanced motors technology wise ever made
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Old Mar 22, 2007 | 09:46 PM
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^1 They were awesome.... and Yes they were huge as well, my dad had a 93 zr1 when I was a kid.... that was what got me hooked
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Old Mar 22, 2007 | 09:52 PM
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So what is the difference between the northstar Cadi motors besides being smaller?
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Old Mar 22, 2007 | 10:06 PM
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I got one in my 91-ZR-1. The LT-5 was developed and engineered in England by Lotus for GM. They were built by Mercury-Marine in Stillwater,OK. Though the engine looks big it still measures 350 ci. It was the most expensive car offered by GM up into the new 500 HP Zo6 was introduced. My 91 had a sticker price of $65,648. that included the ZR-1 package at a $31,683. option. Great car, but ZR-1 specific parts are hard to find and expensive.
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Old Mar 23, 2007 | 09:25 AM
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Here's one we have in our showroom...


Underrated from the factory, the 385 horse motors dyno closer to 400+ and the 405 yers dyno closer to 430+.

They are actually 349 cubic inches, not 350's.
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Old Mar 23, 2007 | 09:32 AM
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I think all 350's are actually 349 cubes...
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Old Mar 23, 2007 | 10:02 AM
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90-93 had 385 hp and 94-95 were rated at 405 hp.
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Old Mar 23, 2007 | 10:18 AM
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Originally Posted by not_my_z
LT5's were made in Stillwater, OK at Mercury Marine.

Go Pokes!
Hell ya! Orange power!

LT5's are no joke. They'll still kick the **** outta most cars on the street, and hwy runs, would give a C5Z06 a very good run.
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