Speedmaster PCE276.1060 Chevy LS 4340 Forged Crankshaft 4.000 Stroke

The Speedmaster PCE276.1060 is a high-performance 4340 forged steel crankshaft engineered for Chevrolet LS engines with a 4.000-inch stroke. Designed for street and race applications with significantly increased horsepower demands, this crankshaft delivers exceptional strength and durability through precision manufacturing processes.

Key Features:

• 4340 forged steel construction for maximum strength and reliability
• 4.000-inch stroke for increased displacement and torque
• 2.100-inch rod journals compatible with LS connecting rods
• 6.098-inch main register length for proper engine alignment
• One-piece rear main seal design for modern LS applications
• Internally balanced configuration for smoother operation
• Nitride-hardened surfaces for superior wear resistance
• Precision-ground and micro-polished journals for superior tolerance control
• Shot-peened for enhanced fatigue resistance
• Lightening holes in all rod throws to reduce rotating mass
• Straight-shot and chamfered oil holes for optimal lubrication
• Large radius fillets on all journals for improved strength

This standard-weight crankshaft is heat-treated and thoroughly inspected to ensure it meets demanding performance specifications. The combination of forged 4340 steel and advanced surface treatments makes this crankshaft ideal for high-performance street engines and competitive racing applications where reliability under extreme conditions is critical.