Pay in 4 interest-free payments of $41.60 Learn more
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Speedmaster rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms
The larger needle bearing fulcrum can withstand valve spring loads up to 600lbs
a new lower housing casting for enhanced fuel flow
The TorqueWorm is a torque biasing 6 pinion gear type limited slip unit
Ford SB 289 302 Windsor 5.4" 4.040" 1.090" 0.927" Flat Top Forged Pistons Speedmaster rocker arm adjusting nutsSpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.
