PAC Drag Race 1300 Series Valve Spring 1.645 Triple – Bracke

PAC Racing Springs operates as the racing and aftermarket division of Peterson Spring, a Michigan spring manufacturer founded in 1914, and runs from its own Southfield headquarters. The company specialises in valve springs engineered for the highest cylinder pressures and engine speeds, with pioneering dual-spring designs that match the weight advantage of titanium at a far more durable cost-per-run. PAC supplies NASCAR Cup, NHRA Pro Stock, Formula 1, World Rally and Sprint Car teams, alongside circle track and sport compact programmes. The catalogue covers small and big block Chevy and Ford V8s plus modern LS, LT, Coyote and import four-cylinder and inline-six platforms.