Introducing our Freedom Series cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications. All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you’ll never worry about a coolant leak under the valve cover again. Perfect for a daily driver or heavy duty towing, our Heavy Duty Street HD heads are rated for use up to 700hp.
FEATURES
- 11 Screw in Freeze Plugs (eliminates coolant leaks)
- Hardened, oversized press-in valve seats
- New heavy duty Fleece 105# valve springs
- Tool steel retainers
- New valve guide liners
- No core charge or core to return!
NOTES
* Head gasket not included. We recommend the use of Cummins 3977063 head gasket.
** FOLLOW ALL INSTALLATION INSTRUCTIONS; Valve lash required. Back off adjusters on rocker arms or damage will occur to the cylinder head. For all applications over stock horsepower we recommend the use of ARP625 or ARP L19 12mm head studs.
*** When utilizing aftermarket head studs, lower rocker box cover modifications are required. Reference ARP INSTALLATION METHOD INSTRUCTIONS.
**** ALL CUMMINS CYLINDER HEADS SHIP GROUND FREIGHT. BASED ON YOUR LOCATION THE SHIPPING TIME IS TYPICALLY 3-5 DAYS BUSINESS DAYS.
