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  • $1,399.95

    Frankenstein Engine Development 5.3 L83 LT Stage 1 Cylinder Heads

    Reuse Factory Intake Valves: 1.930″ Reuse Factory Exhaust Valves: 1.550″ Intake Volume: 260cc Exhaust Volume: 114cc Chamber: 57cc Seats: Stock Iron Guides: Stock Powdered Metal Minimum Bore: 3.900 Stock Rockers. Trunnion Upgrade Kit Recommended (Sold Separately) Springs: FED .660″ Dual LSX Spring Kit with Titanium Retainers Includes: Teardown Wash CNC Port CNC Valve Job FED […]

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