L98 lbs?
Le Mans Master
Joined: Mar 1999
Posts: 9,661
Likes: 1,680
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: L98 lbs? (RX7 KLR)
about 50 lbs lighter than an iron head L98???? :D :D :D
sorry, couldn't help myself!
I don't know....
sorry, couldn't help myself!
I don't know....
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
I would say less than 30lbs a head. Probably closer to 25lbs each. I have a set right now that I am working on, and they are SUPER light. My brother replaced one iron head on his 1990 Chevy W/T 1500 truck which is a V6, and I think it weighed more than both my heads together. :D
Thread Starter
Burning Brakes
Joined: May 2001
Posts: 1,163
Likes: 13
From: Coto de Caza CA
Re: L98 lbs? (RX7 KLR)
Sorry, I meant the whole motor with heads. Forgot I was asking C4 guys. :lol: I called one shop they told me 450lbs for the whole thing, I think that sounds a bit low....
Melting Slicks
Joined: Apr 2000
Posts: 3,198
Likes: 2
From: Northern CA
Re: L98 lbs? (RX7 KLR)
FWIW, here's what the Black book says:
"At 452 pounds, the 1992 LT1 outweighed the 1991 L98 base engine by twenty-one pounds, due partly to replacement of stainless steel exhaust manifolds with cast iron"
I guess that jives with the 430# figure above...
"At 452 pounds, the 1992 LT1 outweighed the 1991 L98 base engine by twenty-one pounds, due partly to replacement of stainless steel exhaust manifolds with cast iron"
I guess that jives with the 430# figure above...
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: Jul 2001
Posts: 6,252
Likes: 2
From: Silicon Valley Kalifornia
Re: L98 lbs? (JasonL)
FWIW, here's what the Black book says:
"At 452 pounds, the 1992 LT1 outweighed the 1991 L98 base engine by twenty-one pounds, due partly to replacement of stainless steel exhaust manifolds with cast iron"
I guess that jives with the 430# figure above...
"At 452 pounds, the 1992 LT1 outweighed the 1991 L98 base engine by twenty-one pounds, due partly to replacement of stainless steel exhaust manifolds with cast iron"
I guess that jives with the 430# figure above...
Race Director
Joined: Oct 2000
Posts: 16,477
Likes: 1
From: Enter Post Count Here
Re: L98 lbs? (RX7 KLR)
My car ways 3,052 lbs, so if you can figure out how much the chassis/body/transmission/rear end/suspension weighs, you'll know the weight of the engine. :) :D :p:
