R44 spark plugs; where?
03-30-2008, 12:47 PM
#3
Race Director
Scott:
I am assuming that your question is for your 1963 car? I agree with Dave, AC 45 or R-45 or R-45S (extended tip) would be a better choice for all around driving. I used to run AC 44 in my 1967 327/350 HP car, but switched about a year ago to AC 45. They don't foul as quickly and the car seems to run better.
I buy my AC plugs from E-bay. A few sets are almost always listed for sale. A reasonable price is around $20-25 per set of eight plus shipping.
AC may still make the R-45 or R-45S. Check with an auto parts store like Pep Boys or Advance Auto. I believe that Denso also has a similar plug. I don't remember the exact heat range to use, but you should be able to find it in the archives. SWC Duke (remember him) recommended them. Search SWC Duke and Denso.
Larry
I am assuming that your question is for your 1963 car? I agree with Dave, AC 45 or R-45 or R-45S (extended tip) would be a better choice for all around driving. I used to run AC 44 in my 1967 327/350 HP car, but switched about a year ago to AC 45. They don't foul as quickly and the car seems to run better.
I buy my AC plugs from E-bay. A few sets are almost always listed for sale. A reasonable price is around $20-25 per set of eight plus shipping.
AC may still make the R-45 or R-45S. Check with an auto parts store like Pep Boys or Advance Auto. I believe that Denso also has a similar plug. I don't remember the exact heat range to use, but you should be able to find it in the archives. SWC Duke (remember him) recommended them. Search SWC Duke and Denso.
Larry
03-30-2008, 06:31 PM
#4
Team Owner
Go with a NGK B-4 (stock 3 3210). This is a non-resister plug with the same heat range as the AC 45. I buy mine from O'Reilly. I use them in my stock 265 c.i. 210 HP '56 and my stock 327 c.i. 300 HP '64.
I have them in mine with no problems.
03-30-2008, 07:21 PM
#7
Team Owner
The R45S works very nicely in my 1967 327/300. I tried the NGK B-4 but they seem like a 44 plug and are too cold: fouling/mis-fire. I changed them out within days.
03-30-2008, 07:37 PM
#8
Melting Slicks
I use Denso w14-u,and I order them from Rock Auto about 19 dollars with shipping. These are non-resistor plugs like what C2's came with from the factory. Rumor has it if you use resistor plugs and wires,that it can wipe out your coil. Don't know if thats true or not,but I figure why take a chance?
03-30-2008, 07:39 PM
#9
Le Mans Master
03-30-2008, 08:18 PM
#11
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03-31-2008, 01:10 AM
#12
Le Mans Master
Scott:
I am assuming that your question is for your 1963 car? I agree with Dave, AC 45 or R-45 or R-45S (extended tip) would be a better choice for all around driving. I used to run AC 44 in my 1967 327/350 HP car, but switched about a year ago to AC 45. They don't foul as quickly and the car seems to run better.
I buy my AC plugs from E-bay. A few sets are almost always listed for sale. A reasonable price is around $20-25 per set of eight plus shipping.
AC may still make the R-45 or R-45S. Check with an auto parts store like Pep Boys or Advance Auto. I believe that Denso also has a similar plug. I don't remember the exact heat range to use, but you should be able to find it in the archives. SWC Duke (remember him) recommended them. Search SWC Duke and Denso.
Larry
I am assuming that your question is for your 1963 car? I agree with Dave, AC 45 or R-45 or R-45S (extended tip) would be a better choice for all around driving. I used to run AC 44 in my 1967 327/350 HP car, but switched about a year ago to AC 45. They don't foul as quickly and the car seems to run better.
I buy my AC plugs from E-bay. A few sets are almost always listed for sale. A reasonable price is around $20-25 per set of eight plus shipping.
AC may still make the R-45 or R-45S. Check with an auto parts store like Pep Boys or Advance Auto. I believe that Denso also has a similar plug. I don't remember the exact heat range to use, but you should be able to find it in the archives. SWC Duke (remember him) recommended them. Search SWC Duke and Denso.
Larry
I hope you mean R44 and R45S for that price. The 44 are usually much higher. And you only need these if you need the green rings for show or judging.
And if you are buying R45S, why not buy locally. Advanced Auto sells them $1.98 each. That is $16 a pack.
http://www.partsamerica.com/productd...artNumber=R45S
Order on line from Rock Auto
http://www.rockauto.com/catalog/raframecatalog.php
ACDELCO Part # R45S {STANDARD PLUG #05613872}
Category: Spark Plug
Choose: ($1.48) {8}+($1.68)
+ Sold in packs of {x}; Price reflects cost of each individual item, not the pack
$1.48 $0.00 $1.48
Autozone has them $2.09 each.
http://www1.autozone.com/selectedZip.../selectZip.htm
There is no reason to order from Corvette vendors who sell them at a mark up and pay shipping when there is probably a place down the street selling R45 and R45S by the packs.
03-31-2008, 01:01 PM
#14
Race Director
Abe G:
See earlier post by Dave (youwishtobeme). I think that you will find the AC R-43 plugs to be way too cold for street use, and they will foul quickly.
Even the AC 44 series plugs (44, R-44, etc.) that were recommended and installed by Chevrolet are generally too cold for normal street use and will foul prematurely. That's why most folks use an AC 45 series plug (45, R-45, R-45S) or its equivalent from another manufacturer.
If you have not yet installed them, I suggest you return the R-43 plugs to Corvette Central. Or save them for when you go racing.
Larry
See earlier post by Dave (youwishtobeme). I think that you will find the AC R-43 plugs to be way too cold for street use, and they will foul quickly.
Even the AC 44 series plugs (44, R-44, etc.) that were recommended and installed by Chevrolet are generally too cold for normal street use and will foul prematurely. That's why most folks use an AC 45 series plug (45, R-45, R-45S) or its equivalent from another manufacturer.
If you have not yet installed them, I suggest you return the R-43 plugs to Corvette Central. Or save them for when you go racing.
Larry
03-31-2008, 03:25 PM
#16
Le Mans Master
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Cheap asian replacement coils are everywhere. Check the prices of restored originals.
03-31-2008, 03:34 PM
#17
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03-31-2008, 06:56 PM
#18
I think these guys have this all backward. With a resistor plug or wire, you will have less current due to the resistance, so there is less load on the coil.
In the old days, we used to be sure we had non-resistor plugs and non-resistor wire (usually solid copper if possible) to get the most current to flow and have the hottest spark.
I don't remember burning up any coils, but I do remember eating a few sets of points and condensers.
In the old days, we used to be sure we had non-resistor plugs and non-resistor wire (usually solid copper if possible) to get the most current to flow and have the hottest spark.
I don't remember burning up any coils, but I do remember eating a few sets of points and condensers.
03-31-2008, 09:58 PM
#20
Race Director
