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#10529 12/10/2006 7:09 AM | Joined: Aug 2006 Posts: 237 Shop Shark | | Shop Shark Joined: Aug 2006 Posts: 237 | Folks would any of you know what type of spark plugs i need to put in a 1965 GMC V6? I think it is a 305. The guys at my local parts tells me that no such v6 exist in 1965. I am looking for them in an AC or Champion. The ones we have it in now seem week. I am thinking they are not the right ones. I think this thing could use some timing curves as well. I may try that next.
All the old guys that knew anything at the parts store have died and only the pimple faced ones are left. It if is not in the computer GMC did not make it.
I remember when you could go to Napa and tell an old feller you need a set of brushing for a starter and he would walk into a huge stack of parts and pick up exactly what you need with out ever having to look at a book or computer.
Jesus is Lord! Only through the blood of Jesus are you washed clean of your sins. Come see us... Dad's Chevy Our VideoGod bless you! Michael..
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#10530 12/10/2006 3:07 PM | Joined: Feb 2004 Posts: 29,871 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,871 | The only reference I have handy is for a 1974 305 V-6, and it lists an AC CR44NS, with a .035" gap. I have other info, but it's 80 miles away at another shop. Run that number and see if it's still available.
Jerry
Edit:
The 1974 379 V6 runs an AC R43T
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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#10531 12/10/2006 4:48 PM | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy guys, the only book at my desk right now only goes back to 1966 the spark plugs listed are, for the 305C C44NS gap .040, for the 305E 45NS gap .035, hope that helps. | | |
#10532 12/11/2006 10:15 PM | Joined: Aug 2006 Posts: 112 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2006 Posts: 112 | Look on jolly's site, http://www.6066gmcguy.org/ they have all that info on the engines page. Those old engines rock. join the group and they email you all the new posts.
64 & 66 GMC long fleetside 4x4
Cartwright, OK
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#10533 12/11/2006 10:35 PM | Joined: Apr 2005 Posts: 2,102 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,102 | AC Delco has discontinued many of the plugs in their line, probably due to lack of requirements.
I have not been able to find AC 45S' in a regular parts store for several years and it was one of the most common plugs for a variety of engines. However, you might try to cross the AC number to Autolite as they still make plugs for older engines. I have used them for some time and have not had any complaints. Auto Zone & Napa have them. Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
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#10534 12/13/2006 4:39 PM | Joined: Dec 2004 Posts: 10 New Guy | | New Guy Joined: Dec 2004 Posts: 10 | I've got the manual for 65 at home, I'll check it tonight and let you know what it lists for spark plugs tomorrow.
Bob | | |
#10535 12/16/2006 3:51 AM | Joined: Dec 2004 Posts: 10 New Guy | | New Guy Joined: Dec 2004 Posts: 10 | According to the 1965 GMC Maintenance Manual (X-6523), The 305E and 305C both use the AC C44NS plug with a 0.035" gap. The 351, 401 and 478 share the C42N plug with a 0.030" gap.
Bob | | |
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