CLASS RACER FORUM - View Single Post - Autolite double platinum plugs? Also indexing?

quickford1 · 12-20-2012, 08:09 PM

The AR92&AR93 are a .708 reach tapered seat plug ,both are power tip plugs that are good for some HP if you have some piston to plug clearance. 92=472 & 93=473 I have plenty of both.
Rich

12-20-2012, 08:09 PM	#20
quickford1 Member Join Date: Aug 2008 Location: Davidson, NC Posts: 268 Likes: 518 Liked 20 Times in 12 Posts	Re: Autolite double platinum plugs? Also indexing? The AR92&AR93 are a .708 reach tapered seat plug ,both are power tip plugs that are good for some HP if you have some piston to plug clearance. 92=472 & 93=473 I have plenty of both. Rich