
S&S CYCLE Retro Top-End Conversion Kit — 3.625 in bore
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.
The Retro Top-End Conversion Kit gives your Shovelhead engine the nostalgic look of a Panhead while providing modern, serviceable components. 🔧
The kit consists of a set of S&S P-series cylinder heads with rocker cradles, S&S roller rocker arms, S&S hydraulic tappets, billet tappet guides, Quickee pushrods, pushrod cover clips and all required gaskets and hardware for assembly.
Heads have a Shovelhead bolt pattern, making them compatible with any stock or aftermarket cylinders for 66-84 Big Twins; heads come complete with valves and 0.590" lift valve springs. They accept stock or S&S O-ring-style manifolds for Shovelheads and any exhaust system made to fit a shovelhead engine. Kits do not include pan covers. 🔥
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We do not ship to the Canary Islands, Ceuta, or Melilla.
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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.