LT5 vs LT1
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
When someone installed the LT1 the had to transfer at least the LT1 harness with it. So you will need the ZR1 engine and transmission with the harness. It possible you will need passenger compartment harnesses. If car was a stripped or partially stripped shell and persons used a LT1 car as a donor for everything missing. It's not going to be an easy project unless you happen has a wrecked car to transfer parts from.
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Are you sure? That might take a bit of work to convert it, I would think. ECM and harness at least? Did you check it by the VIN to be sure before you go that route?
Race Director
Joined: Feb 2002
Posts: 11,616
Likes: 1,055
From: Compound in the Grove, Ga.
2026 Corvette of the Year Finalist - Unmodified
2025 C4 of the Year Winner - Unmodified
2024 C4 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (performance mods)
2018 C4 of Year Finalist
2015 C4 of the Year Finalist
St. Jude Donor '16
Le Mans Master
Joined: Feb 2000
Posts: 9,061
Likes: 214
From: Epping NH
I'd like to know were you're planning on get an LT5 engine...they are not common and are not easy to get a hold of.
Besides I'm not sure I'm buying this post, not that the LT1 isn't a nice engine, but one would have to be a complete moron to swap out LT5 in a ZR1 for an LT1!
Besides I'm not sure I'm buying this post, not that the LT1 isn't a nice engine, but one would have to be a complete moron to swap out LT5 in a ZR1 for an LT1!
Last edited by bac22; Aug 1, 2017 at 12:57 PM.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Wrong engines end up in cool cars all the time. I doubt it was because owner wanted LT1. Broken LT5 then parked for a while.... Not entirely related uncle had a 69 rs z28 new. Grandfather ended up with the car when the uncle couldn't keep up with the payments. My grandfather died in 70 before he could have the engine and transmission changed out for a regular v8 and automatic transmission. So you never know. btw car was sold unaltered in 71. To some people it's just a car.
Race Director
Joined: Feb 2002
Posts: 11,616
Likes: 1,055
From: Compound in the Grove, Ga.
2026 Corvette of the Year Finalist - Unmodified
2025 C4 of the Year Winner - Unmodified
2024 C4 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (performance mods)
2018 C4 of Year Finalist
2015 C4 of the Year Finalist
St. Jude Donor '16
Wrong engines end up in cool cars all the time. I doubt it was because owner wanted LT1. Broken LT5 then parked for a while.... Not entirely related uncle had a 69 rs z28 new. Grandfather ended up with the car when the uncle couldn't keep up with the payments. My grandfather died in 70 before he could have the engine and transmission changed out for a regular v8 and automatic transmission. So you never know. btw car was sold unaltered in 71. To some people it's just a car.
Last edited by FASTAZU; Aug 1, 2017 at 01:38 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Race Director
Joined: Oct 2005
Posts: 11,772
Likes: 177
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
I am not buying the OP story at all.
Someone told him it was a ZR-1 and he probably believed them.
Without the RPO codes or pictures, nobody here will be convinced.
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Thread Starter
Navigator
Joined: Aug 2017
Posts: 9
Likes: 1
im 100% sure
1: i bout the car with two engines Lt1 installed LT5 extra
2: i checked VIN and its zr1 matching numbers with the engine i have
3 the previous owner changed the engine in 2001 because of wiring problems with lt5
4: my car is one of only two zr1 in my country, that's why he did the swap cuz no parts available
Last edited by amr na; Aug 1, 2017 at 11:32 PM.
Race Director
Joined: Feb 2002
Posts: 11,616
Likes: 1,055
From: Compound in the Grove, Ga.
2026 Corvette of the Year Finalist - Unmodified
2025 C4 of the Year Winner - Unmodified
2024 C4 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (performance mods)
2018 C4 of Year Finalist
2015 C4 of the Year Finalist
St. Jude Donor '16
Wow you should have posted that at first... Looks like you have most if not all the parts to put it back. My be a long road but well worth it.
Check out this site for parts,
http://www.jerrysgaskets.com/
Here for lots of help and another great forum
http://www.zr1netregistry.com/Home.aspx
Check out this site for parts,
http://www.jerrysgaskets.com/
Here for lots of help and another great forum
http://www.zr1netregistry.com/Home.aspx
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Why did the previous owner swap out the LT5 for the LT1? Before you spend a lot of time on this project, you need to find out why!! I'll bet it was for more than an electrical part he couldn't find. Is that engine healthy? I'd suspect you'll find some very serious problems! Somebody spent a ton of money to make that conversion, and I'm betting that you'll need several tons of money to put it back together!
That pile of parts has obviously been seriously abused since they came out of the car 16 years ago! The engine wasn't even sealed??!! Even IF that engine was good when it was removed from the car, it will need a complete tear-down and rebuild after being stored in a filthy environment! Are you an excellent mechanic and an electrical wizard? Do you know excellent mechanics and electrical wizards?
Where are you located?
Good luck!!
Last edited by Hot Rod Roy; Aug 2, 2017 at 05:42 PM.
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
This is either the best troll job ever posted, or the person that did this needs an IQ test to prove functionality.
I'll believe it 100% when the photos of the paperwork and car are shown as a match.
If it is real, the car and parts are certainly not worth what it will cost to do the job right.
My advice is to part it out on ebay. UNLESS you have a nice shop, money and skills.
I'll believe it 100% when the photos of the paperwork and car are shown as a match.
If it is real, the car and parts are certainly not worth what it will cost to do the job right.
My advice is to part it out on ebay. UNLESS you have a nice shop, money and skills.