PAC-1250 TRIPLE DRAG RACE SPRING HIGH LIFT/TOP FUEL USA BP HH BB 383 MC

BP HH BB 383 MC  565 - 632                    14

This head offers a dramatic horsepower increase over the previous 23° cylinder head

Port Volume: 291cc

350     732

30                        881

PAC-1250 TRIPLE DRAG RACE SPRING HIGH LIFT/TOP FUEL USA BP HH BB 383 MCCALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Part# Outer Spring I. D. Outer Spring O. D. Middle Spring I. D. Inside Spring I. D. Install Load Install Height Open Load Open Height Coil Bind Max Lift Max Damper Quantity PAC 1250 1. 195 1. 645 0. 871 0. 635 440 2. 200 1129 1. 200 1. 130 1. 000 16 HEIGHT LOAD 2. 850 3 2. 800 27 2. 750 61 2. 700 96 2. 650 130 2. 600 164 2. 550 199 2. 500 233 2. 450 268 2. 400 302 2. 350 337 2. 300 371 2. 250 406 2. 200