Cylinder Heads

• Selecting the proper cylinder head

If you need help matching up the correct cylinder head, piston dome and camshaft combination for your project please contact us to connect with our engine experts so they can virtually model your proposed combination on this worksheet before shipping your corers. Click here for Zipper’s Build Sheet/Job Order Sheet.

• Packaging

A very important process.  To avoid possible damage to your cores please carefully review the packing instructions on page one of the Click here for Zipper’s Build Sheet/Job Order Sheet.

• Shipping Cost
  

Once you have your cores properly protected and packed there is no industry with wider variation of the costs than shipping companies.  Shop around for your best price, consider insurance as required if your cores are lost.

• Processing time

Once the cores arrive at Zipper’s they are unboxed, and inspected for shipping damage. Then we review your job order sheet and other related documentation. Job sheets that have not been finalized before your cores arrived will take additional time to sort thru before the job is put into production. Once finalized, the cores will be disassembled, serialized then move into production. Turn around (Process time) varies depending on the time of the season and how long it takes to get your job sheet finalized. Because of the dedicated skilled labor at Zippers and the vast amount of capital equipment we get the work completed with the highest standard of quality with one of the best turnaround time in the industry.

Work is performed on your supplied head cores.

For our standard production heads Shop Time is approximately 15 business days (during peak season allow for additional time).  The below options will require additional time to process:

• • Custom Modifications
  • Custom Finishes
  • Require Thermal coatings
  • Needing Additional Repairs
  • Or other Non-Standard Work

Exchange heads may be available if the condition of your cores qualifies. The process to determine the condition of your cores is to ship your cores to Zippers for inspection.

• Exchanging Cores

If you have a job that requires a quicker turnaround time we cannot project what we can do until your cores are shipped and received at Zippers.

• Purchasing Cores

For Overseas customers in some circumstances we may be able to source- offer some specific types of cores for purchase.  Contact your sales rep with your specific needs