Trick Flow Beehive Single Valve Spring - 313 lb/in - 1.140 in Coil Bind - 1.055 in OD (Set of 16) AA0700AF2T59 Beneath the bolt down cap

Beneath the bolt down cap and MSD Race Rotor you'll find MSD's accurate mechanical advance assembly

thermostat housings

a Double Universal Joint or Vibration Dampener

) that better distributes the ever increasing valve spring loads over the retainer than typical 7

Trick Flow Beehive Single Valve Spring - 313 lb/in - 1.140 in Coil Bind - 1.055 in OD (Set of 16) AA0700AF2T59 Beneath the bolt down capProduct Description: Valve Spring Beehive Spring Single Spring 313 lb in 1. 140 in Coil Bind 1. 055 in OD Set of 16 Trick Flow built their reputation on designing and producing power boosting aluminum cylinder heads for high performance engines, and have grown to offer a full range of performance parts and bolt on kits for nearly every aspect of the engine and drivetrain.