Valves
Manley – Severe Duty Exhaust Valve for LT1 / LT4 (12347-8)
Crankshaft
Manley – Gen V LT1 4.00″ Stroke Crankshaft (194258)
Manley – Extreme Duty Exhaust Valve for LT1 / LT4 (12349-8)
Manley – Gen V LT1 3.622″ Stroke Crankshaft (194158)
Manley – Chevrolet LS Lightweight Series Crankshaft 4.00 Stroke 58-Tooth Reluctor Wheel (190058)
Manley – Gen V LT1 4.00″ Stroke Long Snout Crankshaft (194458)