QA1 Shock Piston - Linear/Digressive - Twintube Style - Gray EGSR 7/8 in Spline

7/8 in Spline

Reinforced Fingertips and Palm

Positive locking connector provides secure connection

Simply install the distributor in the engine

378" long pushrod set works perfectly with High Energy or Magnum rockers

QA1 Shock Piston - Linear/Digressive - Twintube Style - Gray EGSR 7/8 in SplineThese pistons have flat linear compression and digressive rebound with up to 0. 056" of preload to generate low speed control without excessive high speed forace, helping you maintain grip over surface irregularities. Used on both dirt and asphalt cars, these pistons can generate the force numbers you're looking for to keep the left rear up or keep the front end sealed off. The amount of shim stack preload, shim thickness, and diameter are all able to