IBTL
73 corvette ls6?
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Melting Slicks
Joined: Dec 2002
Posts: 2,390
Likes: 315
From: Belmont Michigan
[QUOTE=yankee Actually with the factory side pipes on it pulled like a bat outta hell in first gear an.[/QUOTE]
No "factory" sidepipes in '73. I think you're are giving the LS4 a bad rap. My brother-in-law restored a '73 convertible a few years ago, and when the engine was rebuilt, the only deviation from stock was a higher performance cam (I don't remember the specs). I went with him to the dragstrip and he ran a 13.18 at 106 mph. That is better than the LS6 Chevelles ran out of the box.
No "factory" sidepipes in '73. I think you're are giving the LS4 a bad rap. My brother-in-law restored a '73 convertible a few years ago, and when the engine was rebuilt, the only deviation from stock was a higher performance cam (I don't remember the specs). I went with him to the dragstrip and he ran a 13.18 at 106 mph. That is better than the LS6 Chevelles ran out of the box.
Last edited by MidShark; Mar 13, 2013 at 02:04 PM.
6th Gear
Joined: Mar 2013
Posts: 6
Likes: 0
Yea ,probably, but **** happens with performance cars, I remember a dealership,Norward chevrolet, getting L88's in back in 68-69 with a factory option sticker listing a corvette with the option L-88 as having 650 horsepower and a chevelle with the same L-88 factory option listing the horsepower as 550 horsepower. I was there when they were unloading the car carrier from chevrolet so it came directly out of the factory so,2 different horsepower L-88's according to the window stickers, anybody know how that came about,was just happy at the time to be there when they were started up and unloaded .By the way the corvette idled like a funny car and the chevelle only slightly less radical. Were there cam options you could ask for from the factory,perhaps if you were a professional racer?
6th Gear
Joined: Mar 2013
Posts: 6
Likes: 0
By the way they were 1968 models.
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
6th Gear
Joined: Mar 2013
Posts: 6
Likes: 0
What did an LS4 tachometer redline on,I think it was a real low RPM but I don't know. anyone out there know? Your probably right though but this has been a mystery for me for 30 years. Were the tachometers distributor(mechanically) driven in 73?
6th Gear
Joined: Mar 2013
Posts: 6
Likes: 0
No "factory" sidepipes in '73. I think you're are giving the LS4 a bad rap. My brother-in-law restored a '73 convertible a few years ago, and when the engine was rebuilt, the only deviation from stock was a higher performance cam (I don't remember the specs). I went with him to the dragstrip and he ran a 13.18 at 106 mph. That is better than the LS6 Chevelles ran out of the box.
Melting Slicks
Joined: Dec 2002
Posts: 2,390
Likes: 315
From: Belmont Michigan
Every Corvette from '63-'74 was equipped with a tach-drive distributor, regardless of horsepower.
6th Gear
Joined: Mar 2013
Posts: 6
Likes: 0
Thanx,that means I walked a healthy 440 GTX with a purple cam top end with a LS4 smog motor,not bad for an eighty thousand mile engine.
Le Mans Master
Joined: Jan 2006
Posts: 6,506
Likes: 139
From: Butler Pa
