{"product_id":"yella-terra-yt-6667-ultralite-roller-tip-rocker-arm-kit-for-gm-ls-series-1-70-ratio","title":"Yella Terra YT 6667 Ultralite Roller-Tip Rocker Arm Kit for GM LS-Series, 1.70 Ratio","description":"GM LS3 Ultralite R\/A Kit - 1.7 Ratio Non-Adj\n\u003cp\u003eUpgrade your GM LS-series valvetrain with the Yella Terra YT 6667 Ultralite rocker arm kit. Designed for LS3 applications, this shaft-mount rocker arm assembly uses a 1.70:1 ratio to optimize valve lift and improve valvetrain performance. The non-adjustable configuration simplifies installation while maintaining dependable rocker arm geometry for performance-focused street, track, and competition engines.\u003c\/p\u003e\u003cp\u003eEach rocker arm features a roller tip that helps reduce friction at the valve interface, supporting smoother operation and reduced wear. The lightweight aluminum construction helps minimize valvetrain mass, allowing improved high-rpm control when matched with compatible camshaft, valve spring, and cylinder head components. The shaft-mount design also provides stable rocker positioning and consistent operation across the valve train.\u003c\/p\u003e\u003cp\u003eThe Yella Terra YT 6667 kit is engineered for GM LS-series engines and is intended for builders seeking a durable, performance-oriented rocker arm solution. Verify cylinder head compatibility, valve lift requirements, pushrod length, and spring clearance before installation. Proper setup is essential to achieve correct rocker geometry and reliable engine operation. This kit is supplied as a complete rocker arm assembly for the specified application and ratio.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Yella Terra\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: YT 6667\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: GM LS-series and LS3 engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRocker Arm Type: Ultralite shaft-mount design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRatio: 1.70:1\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTip Style: Roller tip for reduced valve-interface friction\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: Lightweight aluminum construction\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAdjustment: Non-adjustable configuration\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eKit Type: Complete rocker arm kit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUse: Performance street, track, and competition applications\u003c\/li\u003e\u003c\/ul\u003e","brand":"YELLA TERRA","offers":[{"title":"Default Title","offer_id":67640783470844,"sku":"YTRYT6667","price":692.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0763\/8797\/5420\/files\/YTRYT6667_19a9b821-132d-4b32-99dd-63940b070969.jpg?v=1791013246","url":"https:\/\/ozkonickustomz.com\/products\/yella-terra-yt-6667-ultralite-roller-tip-rocker-arm-kit-for-gm-ls-series-1-70-ratio","provider":"Ozkonic Kustomz LLC","version":"1.0","type":"link"}