1990 Corvette Coupe/Which engine do I have?
Thread Starter
Instructor
Joined: Sep 2002
Posts: 219
Likes: 0
From: The Colony Tx
1990 Corvette Coupe/Which engine do I have?
I here that year came with a L98. In buying spark plaugs it has 2 different engine types. How do I know what I have and how do I get all the specs, HP, etc?
Le Mans Master
Joined: Mar 1999
Posts: 9,643
Likes: 1,667
From: Fort Worth Texas
2024 Corvette of the Year Finalist - Unmodified
2023 C8 of the Year Winner - Unmodified
2020 Corvette of the Year Finalist (stock)
2019 C7 of Year Winner (stock)
Former Moderator
Cruise-In I-II-III Veteran
Re: 1990 Corvette Coupe/Which engine do I have? (aroulette)
you have vin code '8'
the other option is a ZR1 motor... LT5 .... vin code 'J'
the other option is a ZR1 motor... LT5 .... vin code 'J'
Drifting
Joined: Jun 2002
Posts: 1,406
Likes: 0
From: York PA
Re: 1990 Corvette Coupe/Which engine do I have? (aroulette)
Welcome to the forum! :seeya
You have the second to last year for the L98 engine. In 1990, the stock horsepower was rated at 245hp/350 lbs./ft of torque from factory. Some models came with a "sportier" exhaust that bumped up the horsepower to 250hp (not a noticeable difference by any means). This was also the first year of the Speed Density system that replaced the Mass Air Flow. 1990 also debuted a new interior that gave the driver a "cockpit-like" feel.
If you have any questions about your car, this IS the place to post them. There are many knowledgable people here who are always willing to help.
Drive hard!
You have the second to last year for the L98 engine. In 1990, the stock horsepower was rated at 245hp/350 lbs./ft of torque from factory. Some models came with a "sportier" exhaust that bumped up the horsepower to 250hp (not a noticeable difference by any means). This was also the first year of the Speed Density system that replaced the Mass Air Flow. 1990 also debuted a new interior that gave the driver a "cockpit-like" feel.
If you have any questions about your car, this IS the place to post them. There are many knowledgable people here who are always willing to help.
Drive hard!
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
Likes: 88
From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
Re: 1990 Corvette Coupe/Which engine do I have? (fast90)
Welcome to the forum! :seeya
You have the second to last year for the L98 engine. In 1990, the stock horsepower was rated at 245hp/350 lbs./ft of torque from factory. Some models came with a "sportier" exhaust that bumped up the horsepower to 250hp (not a noticeable difference by any means). This was also the first year of the Speed Density system that replaced the Mass Air Flow. 1990 also debuted a new interior that gave the driver a "cockpit-like" feel.
If you have any questions about your car, this IS the place to post them. There are many knowledgable people here who are always willing to help.
Drive hard!
You have the second to last year for the L98 engine. In 1990, the stock horsepower was rated at 245hp/350 lbs./ft of torque from factory. Some models came with a "sportier" exhaust that bumped up the horsepower to 250hp (not a noticeable difference by any means). This was also the first year of the Speed Density system that replaced the Mass Air Flow. 1990 also debuted a new interior that gave the driver a "cockpit-like" feel.
If you have any questions about your car, this IS the place to post them. There are many knowledgable people here who are always willing to help.
Drive hard!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
