Diffence between L48 & L82 ?
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
For starters:
Block: L-48 2 bolt mains, L-82 4 bolt.
Intake manifold: L-48 iron, L-82 Aluminum.
Crank: L-48 Nodular iron, L-82 Forged steel
Camshaft: L-48 .39inlet, .41 exhaust, L-82 .45 In .46 ex.
Valves springs are different
Valves are bigger in L-82
Pistons are different (cast vs impact extruded)
Rings are different.
Block: L-48 2 bolt mains, L-82 4 bolt.
Intake manifold: L-48 iron, L-82 Aluminum.
Crank: L-48 Nodular iron, L-82 Forged steel
Camshaft: L-48 .39inlet, .41 exhaust, L-82 .45 In .46 ex.
Valves springs are different
Valves are bigger in L-82
Pistons are different (cast vs impact extruded)
Rings are different.
Melting Slicks
Joined: Apr 2004
Posts: 2,083
Likes: 2
From: Montreal Qc.
L-48
HP/TQ 195/285
comp ratio 8.2:1
2-bolt main
garbage cam
crappy heads
cast iron manifold
L-82
HP/TQ 225/270
comp ratio 8.9:1
4 bolt main
much better cam (still not as good as a modern aftermarket one though)
heads are a little better
aluminum manifold
better rods/pistons/crank (forged, I think)
The above are for the 79 version, other years may not be exactly the same, check out http://100megsfree4.com/corvette/ for stats on other years.
HP/TQ 195/285
comp ratio 8.2:1
2-bolt main
garbage cam
crappy heads
cast iron manifold
L-82
HP/TQ 225/270
comp ratio 8.9:1
4 bolt main
much better cam (still not as good as a modern aftermarket one though)
heads are a little better
aluminum manifold
better rods/pistons/crank (forged, I think)
The above are for the 79 version, other years may not be exactly the same, check out http://100megsfree4.com/corvette/ for stats on other years.
Thread Starter
Heel & Toe
Joined: Aug 2006
Posts: 21
Likes: 0
Originally Posted by Duke94
For starters:
Block: L-48 2 bolt mains, L-82 4 bolt.
Intake manifold: L-48 iron, L-82 Aluminum.
Crank: L-48 Nodular iron, L-82 Forged steel
Camshaft: L-48 .39inlet, .41 exhaust, L-82 .45 In .46 ex.
Valves springs are different
Valves are bigger in L-82
Pistons are different (cast vs impact extruded)
Rings are different.
Block: L-48 2 bolt mains, L-82 4 bolt.
Intake manifold: L-48 iron, L-82 Aluminum.
Crank: L-48 Nodular iron, L-82 Forged steel
Camshaft: L-48 .39inlet, .41 exhaust, L-82 .45 In .46 ex.
Valves springs are different
Valves are bigger in L-82
Pistons are different (cast vs impact extruded)
Rings are different.
Thread Starter
Heel & Toe
Joined: Aug 2006
Posts: 21
Likes: 0
Originally Posted by Star79
L-48
HP/TQ 195/285
comp ratio 8.2:1
2-bolt main
garbage cam
crappy heads
cast iron manifold
L-82
HP/TQ 225/270
comp ratio 8.9:1
4 bolt main
much better cam (still not as good as a modern aftermarket one though)
heads are a little better
aluminum manifold
better rods/pistons/crank (forged, I think)
The above are for the 79 version, other years may not be exactly the same, check out http://100megsfree4.com/corvette/ for stats on other years.
HP/TQ 195/285
comp ratio 8.2:1
2-bolt main
garbage cam
crappy heads
cast iron manifold
L-82
HP/TQ 225/270
comp ratio 8.9:1
4 bolt main
much better cam (still not as good as a modern aftermarket one though)
heads are a little better
aluminum manifold
better rods/pistons/crank (forged, I think)
The above are for the 79 version, other years may not be exactly the same, check out http://100megsfree4.com/corvette/ for stats on other years.
Thank you for your infos, i see you are in Montreal so may be you speak french. I'm French and i just get a 80 i'm not totally familar yet with the mechanical English terms, so if you can write it in French it will be nice.
Thanks
Melting Slicks
Joined: Apr 2004
Posts: 2,083
Likes: 2
From: Montreal Qc.
Originally Posted by duch54
Hi Star79,
Thank you for your infos, i see you are in Montreal so may be you speak french. I'm French and i just get a 80 i'm not totally familar yet with the mechanical English terms, so if you can write it in French it will be nice. Thanks
Thank you for your infos, i see you are in Montreal so may be you speak french. I'm French and i just get a 80 i'm not totally familar yet with the mechanical English terms, so if you can write it in French it will be nice.
ThanksPeut-etre quell q'une d'autre peut tu aide avec la traduction
(see, that ^ sucks...)
Burning Brakes
Joined: Feb 2004
Posts: 758
Likes: 14
From: Ville de la Baie Quebec. A winner is just a loser who tried again.
Originally Posted by duch54
Hi Star79,
Thank you for your infos, i see you are in Montreal so may be you speak french. I'm French and i just get a 80 i'm not totally familar yet with the mechanical English terms, so if you can write it in French it will be nice. Thanks
Thank you for your infos, i see you are in Montreal so may be you speak french. I'm French and i just get a 80 i'm not totally familar yet with the mechanical English terms, so if you can write it in French it will be nice.
Thanks
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
Thread Starter
Heel & Toe
Joined: Aug 2006
Posts: 21
Likes: 0
Originally Posted by Star79
Sorry, my French sucks. I'm really from Florida, just stuck here temporarily. :o
Peut-etre quell q'une d'autre peut tu aide avec la traduction
(see, that ^ sucks...)
Peut-etre quell q'une d'autre peut tu aide avec la traduction
(see, that ^ sucks...)
Thank you anyway, yor french it's not so bad.
Merci
Thread Starter
Heel & Toe
Joined: Aug 2006
Posts: 21
Likes: 0
Originally Posted by Michel B
Salut !!,, ecoute,, si tu a un probleme avec les traductions sa me ferais un plaisir de t'aider.
Merci d'avance pour ton aide, si tu peux me traduire:
Bolt mains ( Block: L-48 2 bolt mains, L-82 4 bolt)
Intake manifold
Crank
Ca serait kool
Burning Brakes
Joined: Feb 2004
Posts: 758
Likes: 14
From: Ville de la Baie Quebec. A winner is just a loser who tried again.
Oui, mais excuse moi pour mon ortograph,, je suis bien Quebecois mais j'ai fait mes etudes en englais,,lolll
Bon, ils parle des ecrous sur le cap principale du crank, le L-48 en avait 2 est le l-88 en a 4. en fait ca ne veut rien dire, a moins que tu veut faire du drag le 2 bolt est tres bon pour jusqu'A 500hp. les moteur a 4 bolts etais populair dans les camions,, un peut plus robuste pour le travail. Gene toi pas si tu d'autre question,, tu peut m'Envoyer des couriel est je t'Aide autent que possible... bon je doit retourner au travail ,,lolll
Oups,, je viens de remarquer que tu avait d'autre question,, je ne connait pas le vraie terme francais pour le intake,, au Quebec on utilise le terme intake,, mais bon je m'explique; ces la piece qui est just en dessu du carburateur, pour l'entré d'air. Est le Crank ces le vrillebrequin du moteur,,, voila...
Bon, ils parle des ecrous sur le cap principale du crank, le L-48 en avait 2 est le l-88 en a 4. en fait ca ne veut rien dire, a moins que tu veut faire du drag le 2 bolt est tres bon pour jusqu'A 500hp. les moteur a 4 bolts etais populair dans les camions,, un peut plus robuste pour le travail. Gene toi pas si tu d'autre question,, tu peut m'Envoyer des couriel est je t'Aide autent que possible... bon je doit retourner au travail ,,lolll
Oups,, je viens de remarquer que tu avait d'autre question,, je ne connait pas le vraie terme francais pour le intake,, au Quebec on utilise le terme intake,, mais bon je m'explique; ces la piece qui est just en dessu du carburateur, pour l'entré d'air. Est le Crank ces le vrillebrequin du moteur,,, voila...
Last edited by Michel B; Aug 21, 2006 at 08:49 PM.
