{"product_id":"tsp-big-block-chevy-cast-steel-rocker-arms-1-7-ratio-7-16-in-stud","title":"TSP Big Block Chevy Cast Steel Rocker Arms, 1.7 Ratio, 7\/16 in. Stud","description":"\u003cp\u003e\u003cstrong\u003eBig Block Chevy 1.7 Ratio Roller Rocker Arms for Improved Valvetrain Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese 1.7 ratio roller rocker arms are designed for Big Block Chevy applications, helping improve valve lift, reduce friction, and support more responsive engine performance.\u003c\/p\u003e\n\u003cp\u003eBuilt from cast steel, this rocker arm design balances strength, durability, and valvetrain stability for street performance, restoration, and upgraded engine builds.\u003c\/p\u003e\n\u003cp\u003eThe precision valvetrain design helps promote smoother rocker motion and more consistent valve control, especially when paired with compatible camshaft, pushrod, and valve spring combinations.\u003c\/p\u003e\n\u003cp\u003eConfigured for 7\/16 in. stud applications where applicable, these rocker arms are built for proper fitment and reliable operation. Always verify rocker ratio, stud size, pushrod length, guideplate alignment, and valve spring clearance before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPATIBLE WITH\u003c\/strong\u003e\u003cbr\u003eCHEVROLET BIG BLOCK V8 ENGINES\u003cbr\u003e• 6.5L \/ 396 in³\u003cbr\u003e• 6.6L \/ 402 in³\u003cbr\u003e• 7.0L \/ 427 in³\u003cbr\u003e• 7.4L \/ 454 in³\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMON VEHICLE APPLICATIONS\u003c\/strong\u003e\u003cbr\u003eChevrolet Chevelle \/ Camaro \/ Corvette\u003cbr\u003eChevrolet C10 \/ C20 \/ truck applications\u003cbr\u003eChevrolet Impala \/ El Camino \/ Monte Carlo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003cbr\u003eFits compatible stud-mount big block Chevy valvetrain applications.\u003cbr\u003eVerify rocker ratio, stud size, pushrod length, guideplate alignment, valve spring clearance, and valve cover clearance before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003cbr\u003eGrade Type: Performance\u003cbr\u003eMaterial: Cast Steel\u003cbr\u003eMaximum RPM: 7,000\u003cbr\u003eMounting Type: Stud\u003cbr\u003eOpen Pressure Rating: 500 lbs.\u003cbr\u003eQuantity: 16\u003cbr\u003eRocker Arm Body Style: Standard\u003cbr\u003eRocker Arm Finish: Natural\u003cbr\u003eRocker Arm Material: Cast Steel\u003cbr\u003eRocker Arm Nut Type: Poly Lock\u003cbr\u003eRocker Arm Ratio: 1.7\u003cbr\u003eRocker Arm Type: Roller Tip\u003cbr\u003eSelf Aligning: No\u003cbr\u003eShims Included: No\u003cbr\u003eStud Thread Diameter: 7\/16 in.\u003c\/p\u003e","brand":"Top Street Performance","offers":[{"title":"Default Title","offer_id":49797357142312,"sku":"60277","price":132.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/60277_01.jpg?v=1745597847","url":"https:\/\/www.topstreetperformance.com\/products\/tsp-big-block-chevy-cast-steel-rocker-arms-1-7-ratio-7-16-in-stud","provider":"Top Street Performance","version":"1.0","type":"link"}