
S&S CYCLE Super Stock™ Cylinder Heads
In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
We accept many payment methods

In stock items will be shipped within 1-3 days.
You can return the products within 14 days for a full refund, check our returns policy.
Upgrade your engine performance with the Super Stock™ Cylinder Heads. Designed for high port flow, these heads ensure excellent performance now, and they are primed for future upgrades. Fully assembled with springs and valves, they offer a convenient installation experience.
Compression ratios vary based on your cylinder heads selection, pistons, and engine displacement. Refer to the Compression Ratios chart for detailed specifications. The 79cc heads are ideal for stock motors ranging from 88" to 103", while the 89cc heads excel in applications over 103" or with high-compression pop-up pistons.
Specifications include:
These heads are machined for compression releases unless noted otherwise (sold separately), and require S&S rocker boxes when using S&S compression releases. Please note that rocker arm components, intake manifold, and gaskets are not included. The package includes four long headbolts and allows for the reuse of four long OEM headbolts.
Compatible with OEM intake manifolds and proudly made in the U.S.A. Please be aware that S&S rocker boxes (PART #90-4110) are necessary if S&S compression releases are utilized. Not compatible with Twin Cooled heads.
We ship to:
We do not ship to the Canary Islands, Ceuta, or Melilla.
Shipping costs are calculated automatically at checkout based on destination and weight.
Free shipping may be offered for qualifying orders, as specified on our website.
Orders are processed within 1–2 business days after payment confirmation. Orders placed on weekends or public holidays are processed the next business day.
If your order is delayed or arrives damaged, you must notify us within 14 calendar days. We will investigate the issue and offer a resolution in accordance with applicable consumer protection laws.
In accordance with Royal Legislative Decree 1/2007 (Ley de Defensa de los Consumidores y Usuarios), you have the right to withdraw from your purchase within 14 calendar days from the date of receipt, without giving any reason.
To exercise this right, contact us via email or through our website, providing your order number and contact details.
If you want to return an item, please contact us first to give you detailed instructions.