What is the maximum camshaft lift these cylinder heads can accommodate?

These S&S Cycle Super Stock cylinder heads are equipped with high-performance valve springs that allow for the installation of camshafts with up to .650" lift. This provides flexibility when selecting performance camshafts for your engine build.

Will I need a special manifold or throttle body with these heads?

No, the manifold mounting surface on these heads is specially machined to compensate for slightly taller cylinders. This means a stock-length manifold and throttle body will fit, simplifying installation.

Are these cylinder heads compatible with my stock engine components?

Yes, these cylinder heads are designed to be compatible with your stock rocker boxes, exhaust, and intake manifolds. The wrinkle black powder coat finish also matches stock black engine components for a cohesive look.

Specifications

Brand: S&S Cycle
Part #: 900-0470
UPC: 900-0470

S&S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Wrinkle Black

Name: S&S Cycle 99-05 BT Super Stock 91cc Cylinder Heads - Wrinkle Black
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-99-05-bt-super-stock-91cc-cylinder-heads-wrinkle-black-t14-664066
Price: 2016.96 USD
Availability: BackOrder

$2016.96

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits 1999-2005 Harley-Davidson Big Twin engines and 1999-2005 engines with S&S 124" Hot Set Up Kit.
Features 91cc combustion chamber volume for optimized performance.
Equipped with 2.000" intake valves and 1.605" exhaust valves for improved airflow.
Includes S&S Cycle ports designed to supply plenty of air for large displacement motors.
Manifold mounting surface is machined to compensate for taller cylinders, allowing stock-length manifold/throttle body fitment.
High-performance valve springs support camshafts with up to .650" lift.

Designed specifically for late production S&S T124 long block engines for 1999-2005 HD big twins and 1999-2005 engines with S&S 124" Hot Set Up Kit installed. Not CARB approved.

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About this part

Product Details

These S&S Cycle Super Stock cylinder heads feature a 91cc combustion chamber volume, a solid starting point for building serious power on your 1999-2005 Harley-Davidson Big Twin or an engine equipped with the S&S 124" Hot Set Up Kit. The heads are built with 2.000" intake valves and 1.605" exhaust valves, paired with S&S Cycle's own port designs to ensure ample airflow for these larger displacement engines. This improved airflow is crucial for getting the most out of your engine's performance.

A notable design detail is the manifold mounting surface, which is specially machined to account for slightly taller cylinders. This means you can use a stock-length manifold and throttle body, simplifying installation and keeping your setup looking clean. The included high-performance valve springs are rated to handle camshafts with up to .650" lift, giving you flexibility when choosing your next cam upgrade. These heads are designed to work with your stock rocker boxes, exhaust, and intake manifolds, making the integration into your existing engine setup more straightforward.

The wrinkle black powder coat finish on these heads is a nice touch, designed to match the factory black engine components on your motorcycle. This attention to detail helps maintain a cohesive and factory-fresh look while you're upgrading your engine's performance. Please be aware that these cylinder heads are not CARB approved and cannot be shipped to California.