Power Driven Street Conical Valve Spring Set 4BT

Power Driven Diesel offers this set of 8 high-performance drop-in valve springs for the 8v Cummins cylinder head. These lightweight valve spring assemblies are designed for maximum valve control up to 5,000 rpm, perfect for a hot street Cummins diesel. The springs feature 175 lbs. of seat pressure and 375 lbs. of open pressure. These street-performance valve springs will accommodate the vast majority of performance street camshafts on the market while still maintaining reasonable open pressure for cam lobe and lifter/tappet life. As with any aftermarket valve spring upgrade with higher-than-stock pressure, it’s recommended that a higher-quality engine oil is used to protect the cam and tappets.

Kit contains:

• Quantity 8 x conical valve springs
• Quantity 8 x chromoly steel retainers
• Quantity 16 x lock halves (enough for 8 valves)

These street conical springs, retainers, and locks are designed to drop in at a 1.950″ installed height and 175 lbs. of seat pressure.