Description
Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.
High port flow gives great performance now, and more later when additional upgrades are done. Heads are fully assembled with springs and valves, and are available in silver or black powder-coat finish to match Stock components. Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement. Heads are machined for compression releases (sold separately); S&S rocker boxes required when using S&S compression releases. Do not include rocker arm components, intake manifold, gaskets or headbolts (requires eight long Stock length head bolts). Accept Stock intake manifolds. Sold in pairs. Made in the USA. Compression release machining Must use S&S rocker boxes (PART #90-4110) if S&S compression releases are used
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this cylinder heads in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
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