Description
Introducing our Freedom Series cylinder heads. We manufacture each cylinder head in our state-of-the-art machine shop, ensuring they meet or exceed factory specifications. We inspect, pressure check, deck, paint, and prepare all heads for installation. Plus, our 11 screw-in freeze plugs guarantee you’ll never worry about a coolant leak under the valve cover again. Ideal for daily drivers or heavy-duty towing, our Heavy Duty Street HD heads can handle 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
NOTES
* Head gasket not included. We recommend the use of Cummins 3958645 or Fleece Performance FPE-CUMM-HG-5.9.
** Core and crate return required – all paperwork & instructions for return included with the new cylinder head. You are responsible for all return shipping costs of the core.
*** 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.
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