Distributor - Dual Point Mechanical Tach Drive
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
Distributor - Dual Point Mechanical Tach Drive
I have a stock GM distributor, dual point with mech tach drive.
My engine builder wants to send it out to a guy who converts them to electronic. I understand they would weld something to the shaft and it is unable to be returned to stock shape. I want to say he said $150 or for the conversion
Any comments on whether I should do this or not? Is the stock distributor hard to find and worth something...and/or would I be spinning my wheels?
My engine builder wants to send it out to a guy who converts them to electronic. I understand they would weld something to the shaft and it is unable to be returned to stock shape. I want to say he said $150 or for the conversion
Any comments on whether I should do this or not? Is the stock distributor hard to find and worth something...and/or would I be spinning my wheels?
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
If I was in your position, I would sell it on flea-Bay, and get a Mallory tach. drive unit . It will have the vacuum advance, and the electronics is self-contained.
http://store.summitracing.com/partde...5&autoview=sku
http://store.summitracing.com/partde...5&autoview=sku
Intermediate
Joined: Jul 2006
Posts: 41
Likes: 0
From: Manakau City Auckland
I put in a new Mallory Electronic distributor, made the 350 run and start much better, no points to worry about, bought an electronic tacho off a 75, off this forum and plan to change my original tacho to an electronic one, that looks like the original. There is a thread somewhere that clearly outlines this
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Don't trash the original. They are getting hard to find.
Get an Accel blueprinted hei on eBay for less than 75 bucks new and change to a elec tach as previously mentioned.
This combo is more than enough for your revs.
Get an Accel blueprinted hei on eBay for less than 75 bucks new and change to a elec tach as previously mentioned.
This combo is more than enough for your revs.
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
Thanks - OK - I will save the original. Any reason why Mallory over MSD? WIll search Ebay in a bit for the Accel model. The Mallory was $306 and this MSD is $340 http://store.summitracing.com/egnsea...115+4294840120 Both I assume require the separate ignition box
I did not realize you could change the tach to electrical - will have to search the archives. That has to change teh configuration at the interior gauge then...any negatives to that?
I did not realize you could change the tach to electrical - will have to search the archives. That has to change teh configuration at the interior gauge then...any negatives to that?
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
The Mallory I listed is self-contained. The MSD unit will require a seperate box. Why switch to electric tach.? The mechanical tach. is in place and very reliable. The dual-point is not original to your 'Vette, but is probably from an early '60's Vette.
Intermediate
Joined: Jul 2006
Posts: 41
Likes: 0
From: Manakau City Auckland
I went electronic tach because I did not like the mechanical tach drive on the distributor, electronic tacho is much smoother with no needle bounce.
This is thread I was talking about............
Originally Posted by 70 LS1
There have been several threads on this same topic within the last month.
Basically you can get a 75-77 tach and install it in your dash. You can swap the face ovr from your 74, but it is pretty close.
http://forums.corvetteforum.com/show...ach+conversion
nce.
This is thread I was talking about............
Originally Posted by 70 LS1
There have been several threads on this same topic within the last month.
Basically you can get a 75-77 tach and install it in your dash. You can swap the face ovr from your 74, but it is pretty close.
http://forums.corvetteforum.com/show...ach+conversion
nce.
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