Speedmaster PCE289.1013 Pontiac 455 OEM 2 Bolt To 4 Bolt Straight Billet Steel Main Caps

PCE billet main caps are precision CNC-machined from superior-quality 1025 billet steel. These extreme main cap sets consist of the center three caps. PCE billet main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores, and increasing the cap's resistance to closing up under high loads.

• Precision CNC-machined from superior-quality 1025 billet steel
• Improve reliability in highly stressed engines by reducing distortion of the main bearing bores
• Increasing the cap's resistance to closing up under high loads