Active filters
Stellite-tipped nitrided valve for improved wear resistance, reduced friction, and corrosion protection. Made in the USA.
- Precision-machined bronze construction for durability
- Tapered nose to reduce port obstruction and improve flow
- Compatible with unleaded fuel and a range of valve‑stem materials
- Accepts top‑hat valve seals (sold separately)
- Made in the USA
Precision-machined, compatible with no-lead fuel and all valve-stem materials; accepts special valve guide seals (sold separately); made in the USA.
Precision-machined valve guide accepts special seals and works with no-lead fuel; made in the U.S.A.
Precision-machined cast iron construction; compatible with no-lead fuel; accepts special seals (sold separately); made in USA.
Precision cast-iron valve guide compatible with unleaded fuel; accepts special valve guide seals (sold separately).
Precision machined valve keeper keys, split and heat treated for long-lasting performance. Made in the USA.
High-density powdered metal valve seats offering exceptional wear resistance and thermal performance; tested for track and street use.
EST top end gasket kit with embossed stainless steel head, base and rocker gaskets. Complete set of gaskets, seals, and O-rings to rebuild the top end. Made in the USA.
High-performance fluoropolymer construction for extreme-temperature stability.
Twin spring design provides continuous tension for reliable sealing.
Added fillers reduce friction and extend service life.
Made in the USA.
Low-friction fluoropolymer valve guide seals with twin-spring tension and OEM-style durability.
Complete primary gasket kit with aluminum-core, nitrile-bonded gaskets; resists 205°F+, ~85% shape recovery; includes all gaskets, seals and O‑rings; made in USA; no sealer required.
Complete EST top-end gasket kit with embossed stainless steel gaskets and proprietary rubber covering. Includes all seals and O-rings for a full top-end rebuild. Made in the USA.
 
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