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| | | | Joined: Oct 2011 Posts: 89 Shop Shark | | Shop Shark Joined: Oct 2011 Posts: 89 | Folks could you tell me the proper spark plug number for a stock 1954 1/2 ton with a 235.The ones that were in it were champion uj-10y,but i dont think they are correct.
thanks john | | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 |
Denny G
Sandwich, IL
| | | | | Joined: Oct 2011 Posts: 89 Shop Shark | | Shop Shark Joined: Oct 2011 Posts: 89 | Thank you denny.do you know of any other spark plug brands or numbers that might cross reference to the 54 235.We are excited this is the final thing we need to start it up for the first time.Hopfully i can find a place that has them in stock today. | | | | | Joined: Nov 2011 Posts: 8 New Guy | | New Guy Joined: Nov 2011 Posts: 8 | | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | | | | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | I don't think Champion makes auxiliary gap plugs anymore. U: auxiliary gap, J: 3/8" 14mm thread, 10: heat range, Y: extended tip. All U.S. (Champion, AC, Autolite) plugs have lower numbers for colder plugs, AC 44 is colder than 45 which is what you'd expect for a heavy chassis. All foreign plugs (NGK, KLG, Bosch, ND, Lodge) run the other way. AC is the original plug, and IMHO is always a safe choice. Other brands may be listed as the equivalent in a chart, but that only means "closest match of what this manufacturer makes", not absolutely identical. I have some general remarks on plug heat range on my page: http://victorylibrary.com/tech/plug.htm | | | | | Joined: Jan 2008 Posts: 4,960 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,960 | I like to use what the manufacturer put in in the first place. I would look for NOS AC44 on eBay. They also fit a Corvette and sometime the bidding goes crazy, but quite often the Corvette guys aren't looking. NOS AC 45 would be good too especially if you don't drive very hard. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The extended tip plugs are much better, espessealy for these old trucks. I use AC R44S or AC r45S in mine.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Oct 2011 Posts: 89 Shop Shark | | Shop Shark Joined: Oct 2011 Posts: 89 | thank you every one for your help,i picked up a set of densko plugs today that cross reference to the champion rj8c.But after we put them in we had a big let down.The truck would not start.We are getting gas and spark.Its lined up to tdc.Sorry just a little down tonight folks.this was our first attempt at starting her up since we got her two months agao.
thank you again john | | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | I personally run AC R45 plugs which are avalable everywhere.
About 10,000 miles with this plug and I've never had a problem
with them in my truck before it was rebuilt and burning a lot
of oil or since it has been rebuilt and is burning no oil.
Nice tan color every time I've pulled them.
DG
Last edited by Denny Graham; 12/05/2011 1:32 AM.
Denny G
Sandwich, IL
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