Same information as below but Steel vs cast. 

You cannot reuse your stock tappets with a steel cam. This will cause premature wear and failure in the end we don't need that in our life. 

Information:

• RPM Range: Idle-4,000
• Drops EGT 200-300
• Duration at .050″ of lift  178 Intake, 208 Exhaust .290 intake lift .310 exhaust lift
• Warranties will not be considered unless you use Hamilton cams Tappets and springs

Addition Information:

Modification Required:

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    • For it to be “drop in” on a 12v 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. On a 24v you will need no more than .020″ piston protrusion and at least .038″ valve face depth with a standard gasket.   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
    • We always recommend new lifters when changing a cam. 

Applications:

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    • Pulling applications
    • low rpm performance
    • Large or small singles or twins
    • Meant for increased all around efficiency  

Break in:

To make sure that you have no issues during break-in, follow these few suggestions.

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    • 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.
    • Do not let the starter run for more than 10 seconds at a time
    • 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-torqueing the head changes the valve lash setting, so it is important to set lash last