{"product_id":"chevrolet-performance-small-block-chevy-roller-rocker-arms-1-60-ratio-set-of-16-19210729","title":"Chevrolet Performance Small Block Chevy Roller Rocker Arms, 1.60 Ratio, Set of 16 | 19210729","description":"\u003cp\u003eThis rocker arm upgrade kit converts a Small Block Chevy valvetrain to full roller rockers. The aluminum, self-aligning rockers use a 3\/8 in stud mount and a 1.60 ratio, and the set contains sixteen rockers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: full roller rocker arms\u003c\/li\u003e\n\u003cli\u003eMount: 3\/8 in stud\u003c\/li\u003e\n\u003cli\u003eRatio: 1.60\u003c\/li\u003e\n\u003cli\u003eDesign: full roller, self-aligning\u003c\/li\u003e\n\u003cli\u003eMaterial: aluminum\u003c\/li\u003e\n\u003cli\u003eFinish: natural\u003c\/li\u003e\n\u003cli\u003eEngine family: Small Block Chevy\u003c\/li\u003e\n\u003cli\u003eQuantity: set of 16\u003c\/li\u003e\n\u003cli\u003ePart number: 19210729\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSmall Block Chevy engines with 3\/8 in rocker studs\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat rocker ratio do these provide?\u003c\/h5\u003e\u003cp\u003eThey provide a 1.60 ratio, which increases valve lift compared with a stock 1.50 ratio rocker.\u003c\/p\u003e\u003ch5\u003eWhat stud size do they use?\u003c\/h5\u003e\u003cp\u003eThey are built for 3\/8 in rocker studs on a Small Block Chevy.\u003c\/p\u003e\u003ch5\u003eAre guideplates required?\u003c\/h5\u003e\u003cp\u003eThe rockers are self-aligning, so they locate on the valve tip without separate guideplates.\u003c\/p\u003e\u003ch5\u003eHow many rockers are in the kit?\u003c\/h5\u003e\u003cp\u003ePart number 19210729 includes a set of 16 aluminum roller rockers.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What rocker ratio do these provide?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"They provide a 1.60 ratio, which increases valve lift compared with a stock 1.50 ratio rocker.\"}}, {\"@type\": \"Question\", \"name\": \"What stud size do they use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"They are built for 3\/8 in rocker studs on a Small Block Chevy.\"}}, {\"@type\": \"Question\", \"name\": \"Are guideplates required?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The rockers are self-aligning, so they locate on the valve tip without separate guideplates.\"}}, {\"@type\": \"Question\", \"name\": \"How many rockers are in the kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Part number 19210729 includes a set of 16 aluminum roller rockers.\"}}]}\u003c\/script\u003e","brand":"Chevrolet Performance Parts","offers":[{"title":"Default Title","offer_id":41429082996784,"sku":"FMQX_19210729","price":624.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/GMP19210729.jpg?v=1715003567","url":"https:\/\/berryperformancesales.com\/products\/chevrolet-performance-small-block-chevy-roller-rocker-arms-1-60-ratio-set-of-16-19210729","provider":"Berry Performance Sales","version":"1.0","type":"link"}