FORD 4.6 2V DROP IN .550 LIFT CHROME SILICONE VALVE SPRING 600 Spread Port 40/60 MS

600                           Spread Port                              40/60                             MS 89

the bowls blended and the intake ports matched

placement and valve positioning to achieve flow numbers well into the 390 cfm range

Mopar V8 engines

Helicoils are installed in the rocker stud bosses to assure stability

FORD 4.6 2V DROP IN .550 LIFT CHROME SILICONE VALVE SPRING 600 Spread Port 40/60 MSCALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. SKU: PAC1213 16 Ford 4. 6L 2V Beehive OD: 1. 061" 80 lbs @ 1. 640" 185 lbs @ 1. 090" Lift: 0. 550" Specifications: HEIGHT LOAD 2. 150 2 2. 100 8 2. 050 16 2. 000 23 1. 900 30 1. 850 38 1. 800 46 1. 750 54 1. 700 63 1. 650 72 1. 600 81 1. 550 90 1. 500 99 1. 450 108 1. 400 117 1. 350 126 1. 300 135 1. 250 144 1. 200 153 1. 150 163 1. 100 173 1. 050 184 1. 000 195 . 950 208 American made high performance