Keith Black Pistons KB162-030 Hypereutectic Flat Top Piston Set for Big Block Chrysler 383

Keith Black Hypereutectic pistons are a great choice for high performance marine, drag race, circle track, street or towing application builds. Keith Black hypereutectic pistons are made from 390 aluminum alloy and heat-treated to T6 standards, which makes them 30 percent stronger than ordinary untreated hypereutectics. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance.

Specifications:

• Fits BB Chrysler 383
• Bore: 4.280 inches
• Stroke: 3.380 inches
• Rod Length: 6.358 inches
• Compression Height: 1.908 inches
• Flat Top design with 5cc chamber
• 2 Valve Reliefs
• Piston Weight: 738 grams
• Ring Groove: 5/64 x 5/64 x 3/16 inch
• Centered Pin

This .030 inch oversize piston set is engineered for stock stroke Big Block Chrysler 383 builds. The flat top design with minimal 5cc chamber volume and valve reliefs provides excellent compression characteristics for a variety of performance applications. The hypereutectic construction offers superior strength and reduced thermal expansion compared to standard cast pistons, making this an ideal choice for street performance, mild racing, or heavy-duty towing applications.