{"product_id":"pac-racing-springs-pac-s137-16-pac-racing-springs-pac-s137-16-1-400-in-chromoly-valve-spring-retainers-set-of-16","title":"PAC RACING SPRINGS PAC-S137-16 PAC Racing Springs PAC-S137-16 1.400 in Chromoly Valve Spring Retainers, Set of 16","description":"\u003cp\u003eUpgrade your valve train assembly with PAC Racing Springs PAC-S137-16 valve spring retainers, engineered for reliable performance in demanding high-performance applications. This set includes 16 inside-style spring retainers manufactured from durable chromoly material for strength, stability, and consistent spring control. The 1.400-inch outside diameter design is suited for compatible valve spring and cylinder head configurations.\u003cbr\u003eThe PAC-S137-16 retainers feature a 0.030-inch thickness, a 0.570-inch inside diameter, and a 0.685-inch spring inside diameter. These precisely engineered specifications help provide proper spring alignment and secure seating when matched with the correct valves, locks, and valve springs. Always verify compatibility with your specific valvetrain components before installation.\u003cbr\u003eDesigned for engine builders, racers, and performance enthusiasts, PAC Racing Springs retainers support dependable valve train operation under demanding conditions. The 16-piece set provides the quantity needed for a complete V8 application or other compatible multi-valve setups. Install according to the engine manufacturer's specifications and inspect all related components for proper fit and clearance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: PAC Racing Springs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: PAC-S137-16\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eProduct Type: Inside valve spring retainer\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: Chromoly\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOutside Diameter: 1.400 inches\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eInside Diameter: 0.570 inches\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSpring Inside Diameter: 0.685 inches\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eThickness: 0.030 inch\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eQuantity: Set of 16\u003c\/li\u003e\u003c\/ul\u003e","brand":"PAC RACING SPRINGS","offers":[{"title":"Default Title","offer_id":49199928213726,"sku":"PACPAC-S137-16","price":137.71,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/7690\/8766\/files\/PACPAC-S137-16.jpg?v=1791830050","url":"https:\/\/www.racingsupply.ca\/products\/pac-racing-springs-pac-s137-16-pac-racing-springs-pac-s137-16-1-400-in-chromoly-valve-spring-retainers-set-of-16","provider":"Racing Supply Co.","version":"1.0","type":"link"}