determining which engine
Thread Starter
Heel & Toe
Joined: Jul 2009
Posts: 24
Likes: 0
determining which engine
I've been looking for parts for my 93 C4 and I get asked which engine I have. I've just been assuming it's an LT1, but how can I tell for sure? I don't see DOC anywhere but is there a code in the VIN or something so that I can be sure?
Safety Car
Joined: Sep 2002
Posts: 4,971
Likes: 9
From: The reason time exists is so everything doesn't happen at once
You have a 93, you have an LT1. The only other engine offered in 93 was the LT5, available only in the ZR1 (and you would know if you had that). The option label on the underside of your rear passenger compartment will list LT1.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Safety Car
Joined: Sep 2002
Posts: 4,971
Likes: 9
From: The reason time exists is so everything doesn't happen at once
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Le Mans Master
Joined: Oct 2004
Posts: 6,314
Likes: 508
From: South-central Missouri
If yer motor doan look like diss...
or polished like diss...
Or some other color combo...
...it ain't no LT5, but the standard LTwun!
P.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
If you strike out under the center console, rear compartment and gas tank another option is the Corvette Museum, just send them your VIN and the appropriate fee. Well worth it by the way.
https://store.corvettemuseum.com/ser...buildsheet.asp
https://store.corvettemuseum.com/ser...buildsheet.asp
Burning Brakes
Joined: Dec 2007
Posts: 805
Likes: 3
From: Waco TX
There were only 2 engines offered in 93. LT1 and LT5. They look NOTHING alike. Just look up pictures of each.
Or another even quicker way to tell...does your tachometer go up to 6,000 RPM or up to 8,000 RPM? LT1 cars have tachometers that go up to 6k rpm with the LT5 equipped models going up to 8k.
Or another even quicker way to tell...does your tachometer go up to 6,000 RPM or up to 8,000 RPM? LT1 cars have tachometers that go up to 6k rpm with the LT5 equipped models going up to 8k.
