S&S, SuperStock Evo cyl. head kit. Black - 84-99 Evo B.T. (NU) 518220 5cm) long (cen-cen of mount

5cm) long (cen-cen of mount holes)

031" thick Foamet with a silicone bead

The slotted mounting hole design allows mounting from 9cm to 14

2012 Harley-Davidson Sportster Custom - XL 1200C

S&S, SuperStock Evo cyl. head kit. Black - 84-99 Evo B.T. (NU) 518220 5cm) long (cen-cen of mountBlack powder coated finish. Bolt on with stock style flat top pistons. 76cc high compression heads for approx. 10: 1 CR (80"), 9. 4: 1 (89"), 10: 1 (96") compression ratios. The port design allows these heads to outflow stock heads by a wide margin. This set up can be used with up to . 585" lift with TDC lifts of . 252" intake and . 210" exhaust. All heads can be decked . 060" to increase compression but extra care must be taken when assembling decked