Originally Posted by L4staero
Main caps do break.
If you have ever seen how porous these G3 caps are u will understand why they break.

I say if you have a power adder its good insurance.
Im in the process of getti g a production run of billet main caps done.

Also the Demon engine has ARP rod bolts


I've seen a few 650-700 Hp G3s pulled apart with either #2 or #3 Broken at the stud like the one you have in that photo, as for the Demon.....I've seen my builder tear 4 of them apart so far and looks like the factory must of missed them Memo on on the ARP main studs.


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