Originally Posted by HotRodDave
03 07 04X2 05 11X2 and a don't remember. Not a one of them has a hex inside or out.



Ric says the hex started with the change to 22X1.5mm oil filter, they have the Hex the 3/4-16 don't , My 6.1 block was changed over to 22mmx1.5mm...which is why that one has it.

1963 Thunderbolt 496FE 10.80 (still a work in progress)
1968 Mustang slow a$$ 428 FE
1971 Boss 351 Mustang 11.20@115mph
1993 Lightning 10.61 @ 129mph 408Ci A3 headed NA
1996 Viper GTS
2001 Lightning 8.99 @ 155MPH 5.4 Mod Motor
2009 Ram 9.65@144MPH 463CI G3 NA
2010 Challenger 9.91 @ 139MPH 408CI G3ci NA
2019 F150 (local dealer's Lightning package) ..11.90s