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Complete valve spring kit engineered for specific applications. Progressively wound, heat-treated and shot-peened springs supplied as a matched set for one engine. Made in the USA.
Progressively wound racing valve springs. Complete set for one engine. Designed for specific cam and valvetrain requirements.
High chrome valve seats with 18%–22% chromium and 1%–2% nickel. Machined from solid bar stock and ground to exact tolerances. Made in the USA.
Precision-machined high chrome valve seats offering exceptional wear and corrosion resistance. Made in the USA.
High chrome valve seats with 18–22% chromium and 1–2% nickel. Machined from solid bar stock and finished to precise tolerances. Alternative to powder metal. Made in the USA.
- Raises valve spring retainer to gain 0.050" installed height without machining the cylinder head spring set
- Made in the USA
Lightweight racing replacement with FEA-validated design and progressively wound, shot-peened springs. Made in the USA. Requires KPMI shortened M-8 valve guides or modified stock guides; check '23–'25 CVO valve lift for compatibility.
- Adjustable pushrods engineered for maximum valve lift and increased rigidity
- Minimal adjustment design with individual intake/exhaust lengths
- Double jam nut locking and fine-thread adjustment for secure setup
- Compatible with hydraulic or solid lifters; Race Series® for extreme spring pressures
- Made in the U.S.A.; requires removal of rocker covers and supports for installation
One-piece 3/8" 4130 chrome moly fixed-length pushrods with hardened ball ends. Maintains maximum valve lift and increases valve-train stability. Designed for larger-lift cams and high spring pressures. Requires removal of rocker covers and rocker arm supports. Made in the U.S.A.