This fully CNC Ported head is designed for 95, 98, 103, or 107 engines. The 1.850” O.S. Valves, new guides and 7mm conical springs. The application allows use with OE piston with shallow valve pockets or engine builder looking for little extra low end response. The head gasket surface will be decked to assure a true/flat sealing surface.

  • Combustion chamber volume is approximately 85-86.5 cc.

*Available for Twin Cooled Heads

Work is performed on your supplied head cores; shop time is approximately 5 business days (allow for additional time during peak season). Exchange heads may be available if the condition of your cores qualifies. You can also purchase heads outright (without supplying a core set). We will supply clean, reconditioned factory castings for your application – add part #517-015 to your order.

International Customers – Import duties are not required when to shipping your castings for modification. Special low shipping rates are available for your cores; contact your sales representative for details.

Click Here to complete your Job Order Sheet.

Supply us with your piston volume and camshaft selection for final cc volume through decking.

Remove heads from engine, wash off oil and ship to Zipper’s as-is. Improper cleaning methods can actually do more harm than good; we suggest you allow us to properly prepare your heads for modification. Extreme care is taken during our preparation process to preserve component finishes. A small cleaning charge applies to heads sent in for modification.



Zipper’s Engine & Powertrain Service Request


This product is not for sale or use on pollution controlled vehicles.

Weight 1 lbs

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