SUPERTECH DUAL VALVE SPRING & RETAINER COMBO SPRK-H1021D

Supertech Valve / Spring / Retainer kits are precision-matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Valve / Spring / Retainer kits are second to none in terms of performance, quality and value. 

Specs:

Dual Valve Spring 92 psi @ 40.4mm lift
Comes with the standard Supertech Titanium retainers
Includes valve seats for upgrade to dual valve springs
K-Series Engine