| |
Click on image for the lowdown. 
====
| | |
0 members (),
110
guests, and
7
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,186 Posts1,057,319 Members48,469 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2006 Posts: 84 'Bolter | | 'Bolter Joined: Nov 2006 Posts: 84 | I have see a few HEI Distributor conversions done on Chevy motors an was wondering if you can do the same with a GMC motor. I have a 1958 270. Thanks in advance for any advice.  | | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | That is a good question.... Where are you GMC guys at on here??
You might be able to install a Pertronix in your stock distributor and use a coil. That does away with points and wear then.
John | | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | I see an older post back in 2009, in the electrical forums, a fellow said he bought an HEI from Jim Carter truck parts for a GMC 270....
John | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | The distributors will interchange with Chevy distributors as long as the gears match the cam. So the later GM HEI modified for a Chevy can be used in a GMC.
I have run a Pertronix in my 248 for a bunch of miles. | | | | | Joined: Aug 2013 Posts: 255 'Bolter | | 'Bolter Joined: Aug 2013 Posts: 255 | You can convert the GMC distributor to HEI very easily. I had mine done by machining the points cam lobes down to fit a Ford reluctor wheel on it, then use a Dodge pickup sensor bolted down to the points plate. Mount a 4 wire GM module on the firewall or intake, use small HEI coil mounted same. Got a spare 270 distributor handy? good luck. Jim. A good write up in Hamilton Fuel Injection on Binder planet.. http://www.binderplanet.com/forums/showthread.php?p=799563#post799563 | | |
|
|
| |
