What’s included:
- 188/220 Camshaft (fits 89-2018 Cummins)
- Heavy duty pushrods (500-750 hp)
- 155# Cummins 12valve springs
- Retainers and locks
- Lifters/tappets
- Extreme duty pushrods
Modification Required:
- For it to be “drop in” on a 12valve, you will need no more than .020″ piston protrusion and at least .055″ valve face depth with a standard head gasket and a 99 intake centerline. . Â If you do not meet the minimum requirements for piston to valve clearance, don’t worry, you can still run an oversize head gasket or cut valve reliefs.
- Although this is considered a drop in cam it is important to check clearances
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Applications:
- all around performance grind
- Larger single , or set of compounds
- Weekend warrior
- Drag strip
- Stock class pulling
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Break in:
To make sure that you have no issues during break-in, follow these few suggestions.
- Make sure that the cam has a Liberal amount of quality assembly lube applied
- DO NOT let the engine start without oil pressure
- When this is a new engine, be sure to put a liberal amount of assembly lube in the oil pump and prime the oil filter
- Be sure to change the oil after you have done your break-in procedure. When the filter and oil system are already primed, engine will get oil pressure much faster than if the oil is changed at the same time.
- Disconnect the fuel system and spin the engine with the starter until oil pressure can be read or until oil is coming out of the rocker arms.
- Once oil pressure has been verified, let the engine start and run for five minutes at 1200-1500rpm then shut engine down
- Adjust valves then you are cleared to abuse your engine. Enjoy the added airflow
- if you need to re-torque or “hot-torque “the head, do so before adjusting valves. Re-torquing the head changes the valve lash setting, so it is important to set lash last.
