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Thrashin Silver P-54 Slim Driver Footpegs
The basic S&S motor
Piston weight 335gr
Includes flatwashers and nuts
Note: An Evo cam will have about 9% reduction in valve lift due to the lower S&S Shovelhead rocker arm ratio (1
S&S, SuperStock Evo cyl. head kit. Polished - 84-99 Evo B.T. (NU) 511426 Thrashin Silver P-54 Slim DriverPolished finish. Bolt on with stock style flat top pistons. 82cc low compression heads for approx. 8. 4: 1 (80"), 8. 9: 1 (89"), 9. 5: 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 heads to
