Trick Flow Stainless Exhaust Valve - 1.760 in Head - 0.341 in Valve Stem - 5.410 in Long - Mopar B / RB-Series 57-520-20 Features:CNC machined billet aluminum housing Size:2 (96-105cm)

Trick Flow Stainless Exhaust Valve 1.760 in Head 0.341 in Valve Stem 5.410 in Long Mopar B RB Series 57 520 20 Features:CNC machined billet aluminum housing Size:2 (96 105cm) Features:CNC machined billet aluminum housing and Dupont Rynite baseSupplied with Cap A Dapt and rotor (accepts MSD socket style caps)Must be used with an MSD Ignition ControlMechanical advance assembly can be locked out for crank trigger systemsNylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionPolished steel shaft is QPQ coated and guided by a sealed ball bearingMaintenance free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangeEasy to adjust mechanical advance with supplied springs and stop bushingsNo CARB Exemption Order Number 10 12 15 lb Bottles Trick Flow ® Twisted Wedge ® 205 Cylinder Heads at low everyday prices high performance replacement for most original equipment factory heads and accept most factory accessories