CorvetteForum.guru :: Forum

Re: Has anyone installed an LS in a C3? [by bogus]

Tue, 09 Sep 2025 23:47:46 +0000

C3 Technical:: Has anyone installed an LS in a C3?
You all are missing my point... Let her drive the car under extreme supervision. If you trust her enough to keep the car, then you trust her enough to drive it at a slow speed.

My brother took me out for a morning exercise drive. He would, on a Saturday morning, go into the bowels of his development and run the shit outta the car. Then drive it home. Maybe 30 minutes? Kept the carbs from bogging and the plugs from fouling.

After he scared the hell outta me, he then said, "wanna drive it?" Uh, yea (like I would say no?). I drove that thing like it was made of ice.

I let my teenaged great nephew drive my C6 a few years back. He was VERY respectful.

The only exception? My niece... she drove my 1992 Prelude Si into a tree back in 1994. I must add, she was 20 and she had her future husband with her. I hoped she would show restraint, hell, I expected it. She paid for that, both through a long term guilt trip and via her wallet.

Re: Corvette 1980 rear diff posidrive [by rklessdriver]

Thu, 08 Mar 2018 18:02:01 +0000

C3 Technical:: Corvette 1980 rear diff posidrive
I did this tutorial on inspection and rebuilding of the D44 Trac-Lock's a few years ago.

http://www.corvetteforum.guru/modules ... topic_id=17573&menumode=2

Will

Re: New to nccc autocross [by Matatk]

Mon, 17 Apr 2017 03:11:08 +0000

C3 Technical:: New to nccc autocross
Have you tried the website?

http://www.corvettesnccc.org/Competition.html

There is contact info on there.

Re: 1969 L-89 - need advice choosing a cam [by CoachAlmighty]

Tue, 14 Feb 2017 04:58:04 +0000

C3 Technical:: 1969 L-89 - need advice choosing a cam
I know right !?!? My dad had never been interested in having a 'show car' - just because he didn't want anyone nit-picking his car, he said. It wore a primered L88 hood and ran an L88 intake and 850 dbl pumper since early 70. But he kept the tri power setup and it was always in a garage. One day recently he decided to do a total restore back to original. The interior, including carpet, was in such good shape it was just removed and cleaned. This cam swap was a major ordeal for many reasons. I got advice from a number of people but went with the recommendation from here.
I estimate six months before it hits the road again, but I'll certainly list where input came from.

Re: Part needed [by NelsonV]

Fri, 07 Oct 2016 22:31:30 +0000

C3 Technical:: Part needed
Quote:

joeld wrote:
It's been many years since I had my hands on a TH400, but IIRC the 400 had a electric downshift. The 350 was linkage from the carb.

Joel

On the 1971 Chevelle, the TH400 electric kick-down switch was supposed to be located near and activated by the accelerator pedal at the bottom of the firewall. Perhaps it's the same on the Corvette.

Mine was missing since I got the car 10 years; but with the poked-and-stroked BBC, I've never really needed it.

Re: 1972 L48, no start [by rklessdriver]

Mon, 03 Oct 2016 13:14:26 +0000

C3 Technical:: 1972 L48, no start
That's awesome. Glad to see your back working on it.

Will

Re: Does the 81 c3 come with a 3rd brake light from factory? [by Matatk]

Mon, 17 Nov 2014 16:10:20 +0000

C3 Technical:: Does the 81 c3 come with a 3rd brake light from factory?
I agree with Andy.

Re: Guess whose got a C3? [by bogus]

Wed, 24 Sep 2014 19:51:53 +0000

C3 Technical:: Guess whose got a C3?
That sounds about right... And at that point, they were not required until 1981.

I know that certain "clean" cars didn't require them... my 76 AMC didn't have one... my Mom's 78 Audi Fox didn't have one...

Re: Steeroid rack and pinion set-up [by BillH]

Mon, 11 Mar 2013 13:16:50 +0000

C3 Technical:: Steeroid rack and pinion set-up
Quote:

Durango_Boy wrote:

Bairs.com is a reputable seller of Corvette parts that I highly recommend and I can give you the number of a guy who specializes in rebuilding our C3 steering boxes, rear ends, and trailing arms. He's almost the best human being I know, and he's also the one I have at the top of my list for quality work on these types of parts.

Yogi's reputation in the C2-C3 world is huge, he's considered on of the best rebuilders on the U.S.

Re: 504 HP 383 Ingredients [by EngineDoctor]

Sun, 10 Mar 2013 20:14:51 +0000

C3 Technical:: 504 HP 383 Ingredients
Quote:

bearcat wrote:
That is a very impress level of power for a 9:1 compression motor! Very good work.

There was some mention of compression ratio, having huge gains to a bump of half a point in compression or so. There would be some gains, but I don't think it would be huge. And I think you could get that with just a swap to a steel shim head gasket probably.

I think being able to obtain that horsepower goal without having to buy the expensive gas is a very good idea. Good job!

Thanks Bearcat! He has not changed a thing on it. He remains content the way it is, except for the nitrous ;)