which plug

[rinkrat]

I have two different engines, a M26SS and a mach 427. which glowplugs have been best for these mills. All I have are what came in them and I am unsure of what I should use to replace them.
Any one know where I can get them fairly cheap?
thanks.

 

[olds97_lss]

I used OS #8's in both. Seemed to work well. Although, they would probably do better from a bit longer plug like the McCoy MC-8

 

[syphon68]

I use the Mccoy mc59 in the 427, lrp 28 spec 3, and revo 3.3. i like being able to use one for all...

 

[TWOCANE]

McCoy 59 in my .427, the company reccomends that plug in the manual.

 

[Scrogg]

The MC-8 will run a bit cooler and give a little more rpms with 30% fuel.