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SAE Viscosity Grade 15W40
Our lower control arms feature reinforced spring perches and heavy duty sway bar mounting points
BBK tuned Length headers offer improved scavenging waves for better combustion
oil pressure
Manley Pushrod, P/ROD-4130 5/16 8.600 1998-pontiac-firebird-esi4271216 SAE Viscosity Grade 15W40Manley Performance Pushrods are engineered to deliver uncompromising strength, stiffness, and valvetrain stability in todays high performance engines. Manufactured from premium materials and precision heat treated for maximum durability, Manley pushrods are designed to resist deflection under high spring loads and extreme RPM conditions. Consistent wall thickness and exacting tolerances ensure reliable valve timing and long term performance in both
