{"product_id":"proform-440-873-mopar-b-rb-roller-rocker-arms-1-7-ratio-aluminum-set-of-16","title":"PROFORM 440-873 Mopar B\/RB Roller Rocker Arms, 1.7 Ratio, Aluminum, Set of 16","description":"Mopar B\/RB Roller Rocker 1.7 Ratio Aluminum\n\u003cp\u003eUpgrade your Mopar B\/RB-Series engine with PROFORM 440-873 shaft-mount roller rocker arms. Designed with a 1.7:1 ratio, this set helps optimize valve lift and valvetrain geometry for performance-oriented engine builds. The shaft-mount design provides stable rocker positioning, while the roller tips help reduce friction at the valve stem for smooth, consistent operation.\u003cbr\u003eFinished in black anodized aluminum, these PROFORM rocker arms combine lightweight construction with a durable surface treatment suited for demanding automotive applications. The roller-tip design supports reduced wear and improved contact between the rocker arm and valve, making this set a practical choice for street performance, racing, and high-performance Mopar builds.\u003cbr\u003eThis complete set includes 16 rocker arms for compatible Mopar B and RB-Series engines. PROFORM part number 440-873 is engineered for use with the appropriate shaft-mount valvetrain components, so verify engine compatibility, cylinder head configuration, valve lift requirements, and installation clearances before purchase. Professional installation and proper valvetrain adjustment are recommended to help ensure reliable performance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: PROFORM\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: 440-873\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Mopar B\/RB-Series engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMounting Style: Shaft mount\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRocker Ratio: 1.7:1\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTip Style: Roller tip\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: Aluminum\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFinish: Black anodized\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eQuantity: Set of 16\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesign Benefit: Helps optimize valve lift and reduce friction at the valve stem\u003c\/li\u003e\u003c\/ul\u003e","brand":"PROFORM","offers":[{"title":"Default Title","offer_id":67646143627516,"sku":"PFM440-873","price":429.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0763\/8797\/5420\/files\/PFM440-873.jpg?v=1791146978","url":"https:\/\/ozkonickustomz.com\/products\/proform-440-873-mopar-b-rb-roller-rocker-arms-1-7-ratio-aluminum-set-of-16","provider":"Ozkonic Kustomz LLC","version":"1.0","type":"link"}