Cylinder Heads

BD's High RPM Mechanical Governor & Delivery Valve Kits can give you the power and torque you've been looking for. The High RPM Mechanical Gove...

BD's High RPM Mechanical Governor & Delivery Valve Kits can give you the power and torque you've been looking for. The High RPM Mechanical Gove...

Are you looking to dress up your 12-valve 5.9L Cummins motor? Try BD's Cool Covers for the 1988-1998 12v Dodge Cummins. Made from cast aluminum and...

BD's High RPM Mechanical Governor & Delivery Valve Kits can give you the power and torque you've been looking for. The High RPM Mechanical Gove...

BD-Power`s 4000 RPM Governor Spring Kit for your 94-98 Dodge 5.9L Cummins will help you obtain all that potential horsepower and torque. The kit in...

Set of 6 springs that can be used on either the exhaust or intake valves in 12-valve 5.9L Cummins engines Replacement exhaust valve springs to all...

There comes a point as rpm, valve lift, spring pressures and valve size increase, that a single spring is no longer up to the task of controlling t...

45 degree 1.850″ intake and 45 degree 1.750″ exhaust. When machining valve seat on OEM head to fit these larger valves, make sure you set valve fac...

If you are over 30lbs of boost/drive pressure or over 3500rpm with your 12valve, you are experiencing a few negative things. First, valve float, wh...

1999-2022 Cummins 5.9L/6.7L Hamilton Cams Spring Compressor Tool (07-sc-002) Makes changing out your valve springs while in the engine very easy. W...

Freedom Series cylinder heads - Give new life to your engine with our fully remanufactured Cummins cylinder head. Each head is manufactured in our ...

Hamilton Cams valve spring compressor tools make changing out your diesel's valve springs with the cylinder head installed on the engine easier. T...

1989 - 1998 Cummins Manton 12V Valve Spring Kit D-105-KIT-12V 12V Pressure Tower Valve Spring KIt Set of 12 Springs Set of 12 Retainers Set of 2...