MECO spark plugs, DON'T BUY THEM

Discuss fixes, upgrades and modifications to your M37

Moderators: Cal_Gary, T. Highway, Monkey Man, robi

Post Reply
Murf
SSGT
SSGT
Posts: 278
Joined: Sun Nov 11, 2007 10:36 am

Re: MECO spark plugs, DON'T BUY THEM

Post by Murf »

How about someone post the Champion Spark Plug
#
Top
Elwood
MSGT
MSGT
Posts: 937
Joined: Mon Oct 24, 2011 9:34 am
Location: Water Winter Wonderland

Re: MECO spark plugs, DON'T BUY THEM

Post by Elwood »

There are at least three Champion plug numbers that will work in the OEM military shielded system (the supercede part number is in parens):
- 514 (XEJ-8) - cold / medium temp range
- 588 (XMJ14) - cold temp range
- 573 (XMJ20) - standard temp range (?)

There might be other Champion plugs, along with similar plugs from Autolite.
“When a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, IT IS THEIR RIGHT, IT IS THEIR DUTY, TO THROW OFF SUCH GOVERNMENT...” -Declaration of Independence, 1776
Top
MSeriesRebuild
1SG
1SG
Posts: 2832
Joined: Sat Oct 20, 2007 4:35 am
Location: Norwood, NC
Contact:
Contact MSeriesRebuild

Re: MECO spark plugs, DON'T BUY THEM

Post by MSeriesRebuild »

The 573 or XMJ20 are the ones that have worked best for us.
Charles Talbert
www.mseriesrebuild.com
Top
Murf
SSGT
SSGT
Posts: 278
Joined: Sun Nov 11, 2007 10:36 am

Re: MECO spark plugs, DON'T BUY THEM

Post by Murf »

Thanks to both of you!
Top
deltaracer
Posts: 7
Joined: Fri Jul 30, 2021 8:09 pm
Location: Wasilla, Alaska

Re: MECO spark plugs, DON'T BUY THEM

Post by deltaracer »

States heat range for Champion 573 (XMJ20) is---20
1963 M151
1964 M416
1963 M37B1
Top
Post Reply

Return to “Technical group”