NSW Corvettes

Technical Tips => Engines - Carbies - Exhausts - Dissys => Topic started by: 77CVT on November 18, 2013, 11:17:57 AM

Title: 1971 Twin Point Dizzy Replacement
Post by: 77CVT on November 18, 2013, 11:17:57 AM
I have a lot of play (in every direction) in my 71’s twin point dizzy……which may explain my carb backfire issues (hopefully).  Did a quick search on HEI tach drive dizzy’s and there seems to be a huge variation in price.

Has anyone purchased a replacement or have any opinions on the ones out there.  I’m not going to spend $450 as some of the top end priced ones are but saw this at Ecklers - http://www.ecklerscorvette.com/corvette-hei-distributor-conversion-1962-1975.html (http://www.ecklerscorvette.com/corvette-hei-distributor-conversion-1962-1975.html)

Also - http://www.winnerscircleautoparts.com/chevyheidistributortachdriveredcap.aspx (http://www.winnerscircleautoparts.com/chevyheidistributortachdriveredcap.aspx)

Any suggestions?

 :cheers:
Title: Re: 1971 Twin Point Dizzy Replacement
Post by: bfit on November 18, 2013, 12:18:14 PM
Mate i went with a  MSD and a 6al controller
works great
Bfit
Title: Re: 1971 Twin Point Dizzy Replacement
Post by: 77CVT on November 19, 2013, 09:25:52 AM
hmmm  $450+ for the dizzy and $280 for the controller...... I would hope it works great!  Bit out of my range.
Title: Re: 1971 Twin Point Dizzy Replacement
Post by: bfit on November 19, 2013, 09:29:29 AM
I have not rebuilt a distributor for a long time but I would think you would be able to get a set of bushes for the  dissy and  get it back to good running order
Bfit

I do like the MSD dissy and controller with the added advantage of a rev limiter 
Title: Re: 1971 Twin Point Dizzy Replacement
Post by: 77CVT on November 19, 2013, 12:43:56 PM
You are right but I'd rather burn a twin point dizzy!!   :wink:

Your setup is ideal but I'm not prepared to spend that much on a car I unfortunately do not drive enough!  :tears:

I'll prob go with the Winners Circle one but with all the cheap ones out there I am unsure if they are Chinese built or not.
Title: Re: 1971 Twin Point Dizzy Replacement
Post by: bfit on November 19, 2013, 01:48:12 PM
I was never keen on twin points distributors
I could not see the advantage in 8 lob versions and the
4 lob variety  worked to a degree  butt were a pain in the rear to keep the timing correct.

Bfit