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#559484 - Mon Jul 27 2009 07:26 PM 1953 Chevy Spark Plugs
Chevybruce Offline
New Guy
Registered: Wed Apr 08 2009 04:28 AM
Posts: 35
Loc: CRESCENT,PA USA
Hi, I have a 1953 Chevy 235 with AC C 44 spark plugs no one can cross them to another AC . Can I put R 44 AC plugs in ,I have them from my 1961 Pontiac. If someone can tell me which AC plug I can use I would appreciate it. Thanke, Bruce
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#559497 - Mon Jul 27 2009 07:54 PM Re: 1953 Chevy Spark Plugs [Re: Chevybruce]
Mr. Lang Offline
Shop Shark
Registered: Sat Jun 21 2008 06:02 PM
Posts: 1506
Loc: Brentwood Bay, BC Canada
I believe the difference is likely the heat range, assuming that the plugs are the same size and length. For what its worth, I use autolite 295. They are cheaper, plus, from bumper to tail light, you're always right with Autolite!
_________________________
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#559504 - Mon Jul 27 2009 08:07 PM Re: 1953 Chevy Spark Plugs [Re: Mr. Lang]
cletis Offline
Registered: Sat May 19 2001 12:00 PM
Posts: 10458
Loc: Parker County Texas
I have no idea what the C stands for but the R stands for built in radio noise filter. They are the same heat range and the R44s will work fine.
_________________________
"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
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#559509 - Mon Jul 27 2009 08:16 PM Re: 1953 Chevy Spark Plugs [Re: cletis]
Roy Rodgers Offline
Shop Shark
Registered: Fri Mar 25 2005 12:00 PM
Posts: 1669
Loc: Ranger, Texas
The C was for comercial rating I believe, and Cletis is correct, the R44's will work just fine. That's what haas been in my 261 for years.
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#559526 - Mon Jul 27 2009 09:02 PM Re: 1953 Chevy Spark Plugs [Re: Roy Rodgers]
LONGBOX55 Offline
Master Gabster
Registered: Mon May 08 2006 12:00 PM
Posts: 9101
Loc: DANVILLE IL
That information is correct. The real trick will be finding them. Seems that AC has cut way back on their part number inventory, with many "obsolete" parts being discontinued. I've been told that the only plug currently available from AC is the R43, which is what I currently have in mine. Another option would be to use the J8C Champion.
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#559565 - Mon Jul 27 2009 10:40 PM Re: 1953 Chevy Spark Plugs [Re: LONGBOX55]
jdl Offline
Shop Shark
Registered: Sun Dec 23 2007 10:39 PM
Posts: 4511
Loc: Marco Indiana
If you do a search, you should be able to come up with some Accel racing spark plugs that are an exact match for the AC C 44s. As far as finding new C44's, your pretty much out of luck except if you find them on Ebay. I think the Accels are $2.89 or something to that effect but if you want something cheap that still works good go get some Autolites. That's what I have in the '54 right now and they work fine. I did clean up my AC's just to keep around for spares, thinking about putting them back in.
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#559569 - Mon Jul 27 2009 10:46 PM Re: 1953 Chevy Spark Plugs [Re: jdl]
Wrenchbender Ret. Offline
Master Gabster
Registered: Sun Jun 20 2004 12:00 PM
Posts: 9195
Loc: Lenexa Ks.
R-44S or R45S are the extended tip plugs. They are much better then the conventional plugs but can only be used on overhead valve engines.
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#559589 - Mon Jul 27 2009 11:24 PM Re: 1953 Chevy Spark Plugs [Re: Wrenchbender Ret.]
Denny Graham Offline
Extreme Gabster
Registered: Mon Oct 02 2006 12:00 PM
Posts: 10046
Loc: Sandwich, IL
All the vendors are selling AC R45's now as a replacement plug for the 216 and 235. They are readily available at FLAPS and places like Farm & Fleet. That's what I've been running in mine for almost 10k now and they burn just fine, take a look. http://www.pbase.com/dennygraham/image/115454492

Now Chris, you know donít ya, that Autolite plugs are only for FoMoCo vehicles and that they wonít run worth a s*^& it a GM vehicle.

DG
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#559595 - Mon Jul 27 2009 11:32 PM Re: 1953 Chevy Spark Plugs [Re: Denny Graham]
LONGBOX55 Offline
Master Gabster
Registered: Mon May 08 2006 12:00 PM
Posts: 9101
Loc: DANVILLE IL
Originally Posted By Denny Graham
Autolite plugs are only for FoMoCo vehicles and that they wonít run worth a s*^& it a GM vehicle.

That's what I told them at the flaps when they tried to sell me Autolites!
_________________________
Bill Burmeister
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#559646 - Tue Jul 28 2009 04:14 AM Re: 1953 Chevy Spark Plugs [Re: LONGBOX55]
Chevybruce Offline
New Guy
Registered: Wed Apr 08 2009 04:28 AM
Posts: 35
Loc: CRESCENT,PA USA
Thanks for all of the insight guys,I now have a wide range to choose from,Bruce and my '53
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