IBTL
73 corvette ls6?
Team Owner
Joined: Jun 2000
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From: Southbound
Cruise-In II Veteran
Melting Slicks
Joined: Dec 2002
Posts: 2,390
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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
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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
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By the way they were 1968 models.
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6th Gear
Joined: Mar 2013
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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
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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
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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
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From: Butler Pa
