An often over looked detail. Get the most from your modified heads by porting and polishing your intake manifold. It improves airflow and maximizes performance.

Part #IM1
• Port & polish carb manifold for most TC, EV, EV Sportster, Shovel and Aftermarket heads.
Part #IM2
• Port & polish Super Stock S&S manifold (remove fin).

Add to all BC's TC, EV, EV Sportster Aftermarket Head Packages.
Spring kit includes double springs with dampener, retainers, bottom cups and keepers.

Provides the necessary spring pressure to prevent valve float in high RPM and high lift applications. For camshafts bigger than .550 lift.

Please call for race applications and camshafts bigger than .650 lift.

Part #BC605
• For .550 to .600 lift cams
• Spring kit with steel retainer
Part #BC605T
• For .550 to .600 lift cams
• Spring kit with titanium retainer
Part #BC607
• For .600 to .650 lift cams
• Spring kit with steel retainer
Part #BC607T
• For .600 to .650 lift cams
• Spring kit with titanium retainer

High performance gaskets for EVO and Twin Cam. EST (Extreme Sealing Technology) eliminates leaks. For stock and big bore applications, ideal for high compression.

EST's embossed stainless steel metal substrate is coated with a proprietary high temperature rubber material that virtually eliminates leakage when joining two metal surfaces.

P/N #C9635 - Top End Kit for 92-UP 80" EVO
P/N #C9747 - Top End Kit for 84-91 80" EVO
P/N #C9780 - Top End Kit for 99-UP 95" Twin Cam

Click here for additional gasket styles.