Re: 305a V6 ignition parts
 

O'Reilly's has the Delco U305 in the same group as the Master Pro 2-4211 (my post). It was listed as not available. The rotor used with this cap is Delco U403, also listed as not available.
This is the rotor in that group that is available.
http://www.oreillyauto.com/site/c/de...+cap+%26+rotor

And Delco U110 was in this group (not available) but this is:
http://www.oreillyauto.com/site/c/de...%26+condensers

Re: 305a V6 ignition parts
 

I was checking my old Motor's manual to see what distributor number was called out for this truck. Seems the number for a distributor for a 1960 305A is 1110248. further checking showed that the number in question doesn't appear anywhere, but my list only goes to 1964. So no telling when this number appeared.

After I did some more checking by Goggling that distributor number, it comes up as one for industrial and tractor applications, that may be part of the problem of why there is so much difficulty in finding parts that fit.

Re: 305a V6 ignition parts
 

I was thinking that going by distributor number is IFY. My 1960 305A stock motor and my stock 305E have the same, larger diameter cap with twist lock. So many times PO's may change something, the best thing is to go where you can touch and feel and compare. As you say, old numbers are hard cross ref at auto parts stores. These parts I found are for 67 Chevy K15. Pirate came up with the same part number that I did using a different search technique. I think it's a done deal. I got my clue from the outside GMC Guru info I posted.

Re: 305a V6 ignition parts
 

This one is an EXACT match.

Good work Ken.

In case the website link goes away in the future, the cap details are:

MasterPro Ignition - Distributor Cap
Part # 2-4211

Thanks bud!

Re: 305a V6 ignition parts
 

Now get that thing runn'in. Let us know. You and I are in the 1960 GMC SWB Fleet Club! Widesiders!:crazyyippee:

Re: 305a V6 ignition parts
 

It's alive!

That noise you here in the background is someone in the shop hammering on something, not my engine.

A little video of it running: https://youtu.be/AA6yZaNUXaI

Thanks for all the help folks!

Re: 305a V6 ignition parts
 

Smooooth

Re: 305a V6 ignition parts
 

Actually in later years, 66-74 the small cap with no window was the most common, the window style cap on these engines in later years was non existent.

Re: 305a V6 ignition parts
 

Sounds good! Nice and smooth like the big dawgs they are. lol Mine chugs at a level 700 rpm.

Re: 305a V6 ignition parts
 

Sounds good! Nice and smooth like the big dawgs they are. lol Mine chugs at a level 700 rpm.