Boundary Pumps Billet Crankshaft Timing Sprocket Ford Mod Motor V8 4V Adjustable Keyway

Billet Crank Sprockets from Boundary follow the same heritage as our oil pump gears, manufactured 100 percent in house with US sourced materials. These sprockets start with a chromoly steel that is 10 times stronger then the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear.

Features:

• All sprockets heat treated to maximum hardness while maintaining toughness
• Precision CNC machined and broached for snug accurate fit
• Dimensions checked after machining and after heat treating for guaranteed fit.
• 80 percent more cross section versus OEM at the keyway
• Weighs 30 percent more then OEM at 170 grams vs 130 grams giving the highest strength sprocket on the market.
• High finish reduces friction and chain vibration
• New tooth geometry strengthens teeth and keyway