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12 Valve 188/220 Camshaft Combo
$1,375.00
| Make | Model | Year |
|---|---|---|
| Dodge/Ram | 2500 | 1989 - 1998 |
| Dodge/Ram | 3500 | 1989 - 1998 |
This 12-valve combo pairs the 188/220 cam with 155 lb valve springs, retainers, locks, tappets and extreme duty pushrods. Review the clearance requirements before ordering, especially if the head or block has been machined.
What’s included:
- 188/220 Camshaft (fits 89-2018 Cummins)
- 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. . 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
Applications:
- all around performance grind
- Larger single , or set of compounds
- Weekend warrior
- Drag strip
- Stock class pulling
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.
Approved oil — required. Use a 15W-40 (or 5W-40 in sub-zero conditions) with adequate zinc, phosphorus, and molybdenum. Thin or low-additive oils don’t provide the shear strength a flat tappet needs. Approved oils:
- Valvoline Full Synthetic 15W-40
- Valvoline Synthetic Blend 15W-40
- Valvoline All-Terrain 15W-40
- Schaeffer’s 15W-40
- Mobil Delvac Extreme 15W-40
- LIQUI MOLY Touring High Tech 15W-40
- Driven Racing Oil 15W-40
- Redline 15W-40
Acceptable:
- Shell Rotella T6 Full Synthetic 15W-40
- Shell Rotella T5 15W-40
Preferred filter: Fleetguard Stratapore LF16035. Running a non-approved oil voids the warranty. All warranty claims must include the failed parts and an oil sample.
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