Spark Plugs Autolite
- AR132 -.460" reach - Tapered seat - cold - Chev & Ford small block (racing)
- AR134 -.460" reach - Tapered seat - hot - Chev & Ford small block (racing)
- AR472 -.708" reach - Tapered Seat - cold - Super Saloon
- AR473 -.708" reach - Tapered Seat - medium - Super Saloon
- AR3910 - 3/4" reach - Flat/washer seat - power tip - cold - Sprint car
- AR3911 - 3/4" reach - Flat/washer seat - power tip - medium - Sprint car
- AR3932 - 3/4" reach - Flat/washer seat - standard tip - cold - Sprint Car and Super Saloon
- AR3933 - 3/4" reach - Flat/washer seat - standard tip - medium - Sprint Car and Super Saloon
- AR3934 - 3/4" reach - Flat/washer seat - standard tip - hot - Sprint Car and Super Saloon
