|
|
Joined: Jul 2021
Posts: 29
Grease Monkey
|
OP
Grease Monkey
Joined: Jul 2021
Posts: 29 |
What type of sparkplugs do you recommend for the 235 in our ”˜49 Chevy pickup? Battery is 12 volt and starter 6 volt. Thank you!
|
|
|
|
VCCA members have access to a list of over 50 Technical Advisors who can help you with your car. It's worth the price of membership! While you can get a lot of information for free in this forum, sometimes the info that you REALLY need is only available from the right person. This is what "The World's Best Chevrolet Club" is all about!
JOIN THE VCCA TODAY!
|
|
|
|
Joined: May 2005
Posts: 1,295 Likes: 2
ChatMaster - 1,000
|
|
ChatMaster - 1,000
Joined: May 2005
Posts: 1,295 Likes: 2 |
What type of sparkplugs do you recommend for the 235 in our ”˜49 Chevy pickup? Battery is 12 volt and starter 6 volt. Thank you! I use A/C R-46 plugs in my 235 and have always been very happy with them. 
p.k.
1956 BEL AIR 2 DOOR HARDTOP
I've spent most of my money on Booze,Women and mechanical things. The rest I just Wasted........
Remember , I'm not Always Right. But I'm Never Wrong !
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
It would on hw your car is driven. i found the AC45R works fine for me and an AC45 wAS FACTORY INSTALLED IN 235 ENGINES FROM 1953 AND UP, NO "R" OR RESISTOR PLUGS BACK THEN. aLSO THE R45 IS STILL BEING MADE AND SOLD TODAY.
Gene Schneider
|
|
|
|
|
Joined: Jul 2021
Posts: 29
Grease Monkey
|
|
OP
Grease Monkey
Joined: Jul 2021
Posts: 29 |
We just got it and rebuilding. Trying to get it running and needs new sparkplugs. Guy at Napa said their computer recommended a AC43R...
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The #43 spark plug is a very cold plug and would be used for heavy duty trucking and racing.
Gene Schneider
|
|
|
|
|
Joined: Dec 2007
Posts: 4,024 Likes: 99
ChatMaster - 4,000
|
|
ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,024 Likes: 99 |
While the AC 43R will work in your car I agree with Gene that the 45R is a better plug for your application. It is 2 heat ranges hotter.
Rusty
VCCA #44680
|
|
|
|
|
Joined: Jul 2009
Posts: 302 Likes: 4
Backyard Mechanic
|
|
Backyard Mechanic
Joined: Jul 2009
Posts: 302 Likes: 4 |
Is the C45 plug also suitable? I have a few sets of these from long ago
|
|
|
|
|
Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
|
|
Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
If you mean AC45 check Chev Nut's first post in the thread.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
|
|
|
|
|
Joined: Jul 2018
Posts: 217 Likes: 3
Backyard Mechanic
|
|
Backyard Mechanic
Joined: Jul 2018
Posts: 217 Likes: 3 |
The oldest AC Sparkplug catalog I have (1956) shows a 44-5 plug for all 1949 trucks up to 1 1/2 ton. This would mean that a modern "5" heat range would be good. 44-5 equates to roughly a 4.5 heat range. The C45 is the same as the 45 or R45 except it is a commercial plug having thicker electrodes making them heavy duty. They will perform the same as the non-commercial plugs.
Jeff
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The AC 44-5 and 46-5 plugs were discontinued yeas ago.
THE S plug had an entended tip. Ths was used to better burn the lead deposits of from the tip. Use of the S plug is no longer necessary and the extended tip tended to burn holes in the top of the pistons in 235 engines in heavy dut service.
Gene Schneider
|
|
|
|
|
