Black74vette

New member and also new corvette owner,recently bought a 74,needs some work but going to try to bring it back to life!!! Been having some issues getting the correct distributor.all the performance shops in my area keep getting me the standard small block 350 chev distributor however I know 62-74 has the cable drive for the tach,I’m in Canada and am thinking on going with the msd tach drive pro billit any thoughts???

jackson

as cheap as $40 delivered to USA ... Tach Drive HEI ... of course they're Asian
https://www.ebay.com/itm/Chevy-V8-HE...frcectupt=true

- edit -
the above ad read tach drive but I don't see it

here's another that's under $50 delivered to USA ... no doubt also Asian
https://www.ebay.com/itm/1962-74-Cor...frcectupt=true

Rescue Rogers

The MSD is nice but you need the adjustable rotor to get it to clock correctly with the shielding. The tach drive isnt located in the same place as the GM distributor plus you'll need the 6AL contoller and HEI wires
If you want to stay with the small cap instead of the big cap HEI style, put a WTB add on our for sale section looking for a rebuilt GM tach drive.

MelWff

why are you trying to replace the distributor as opposed to repairing it?

Black74vette

The car didn’t come with the factory distributor,the one that’s in it does not come with the tach drive so my tach currently is not working

3X2

My personnel opinion: Get a factory T.I. distributor. Email Lars here on the forum for his papers on distributors and timing. The T.I. distributor will trigger a cheap GM 4 pin h.e.i. module.

suprspooky

I'm running the MSD with 6AL. The MSD Billet can be wired to work with the GM HEI Module. If you want to go that route let me know (it's a way to see if you MSD box is having issues), you'll need to make some connectors. I've run the GM points, GM TI, MSD and Mallory Unilite (all tach drive), you just need to do creative wiring.

76strokervette

You can order a Davis unified Ignition distributor with a mechanical tach drive.
Will give you Hei power with the tach drive in one package.

derekderek

diff between DUI and chinese tach drive dist is 350 bucks. i am sure it is better, but 8 times as good?

Buccaneer

Another vote for DUI. Sure, it cost more, but you are assured a quality product vs. cheap Chinese junk.