Cylinder Heads – Twin Cam
High port flow gives great performance now, and more later when additional upgrades are done, Heads are fully assembled with springs and valves, Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications, 79cc heads work great with stock motors for 88″ to 103″ motors; 89cc heads work best for motors over 103″ or with high-compression pop-up pistons, 79cc have 1.940″ intake and 1.575″ exhaust valve and springs for up to .640″ lift; 89cc have 2.000″ intake and 1.605″ exhaust and .640″ springs, Heads are machined for compression releases unless noted otherwise (sold separately); S&S rocker boxes required when using S&S compression releases, Do not include rocker arm components, intake manifold or gaskets, Heads include four long headbolts, and reuse four long OEM headbolts, Accept OEM intake manifolds, Made in the U.S.A., Must use S&S rocker boxes (PART #90-4110) if S&S compression releases are used., Not compatible with Twin Cooled heads.
Prompt shipping and expert packing
Due to our longstanding partnership with UPS FedEx DHL, and other major international carriers, we are able to provide various shipping options. Our warehouse staff are highly trained and will wrap your goods according to our precise and precise specifications. Your products will be subjected to an exhaustive examination before they will be securely packaged before being sent out. Every day we ship thousands of packages to customers from all over the world. This demonstrates our dedication to be the largest online retailer in the world. Both Europe as well as the USA have warehouses and distribution centres.
Note: Orders with more than one item will be assigned a distinct processing time dependent on the particular product.
Before shipment, all ordered items will be thoroughly inspected. Most orders are shipped within 48 hours. The expected delivery time will be between 3-7 days.
Returns
The stock is dynamic and we cannot completely manage it because many parties are involved, which includes our factory and warehouse. The actual stock can be changed at any time. You may not receive your order after the order has been made.
Our policy lasts for thirty days. If it's been longer than 30 days since you made your purchase, we unfortunately can't give you a full exchange or refund.
Your item should be in the original packaging and in good condition. It must also not be used. The item must be in the original packaging.
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