{"product_id":"185cc-renegade-sbf-cylinder-head","title":"185cc Renegade SBF Cylinder Head","description":"The AFR 185cc Renegade SBF cylinder head is engineered as a bolt-on performance upgrade for small block Ford engines, suitable for both street and strip applications. These heads are constructed from A356 aluminum castings and feature 100% CNC ported intake, exhaust ports, and combustion chambers for optimal airflow. The 60cc combustion chambers and 185cc intake ports are designed for 302-351 cid engines, targeting an operating range from 1500 rpm to 6500 rpm.\n\nKey components include 8mm bead lock intake valves (2.020\") and exhaust valves (1.600\"), PAC Racing dual valve springs rated for .600\" lift and up to 6300-6500 RPM, Manley steel retainers, and Viton valve seals. The 3\/4\" thick head deck is suitable for nitrous or blower applications. This cylinder head also features a perimeter bolt valve cover pattern and a 20° valve angle.\n\nImportant fitment and installation notes include: these heads are not compatible with OEM pistons and may require pistons to be notched for valve clearance, especially on stock 86-93 5.0L engines. They will not accept shaft mount rocker arms, and hardened pushrods are required for certain part numbers. For optimal performance and to prevent valve float at higher RPMs, AFR suggests upgrading the springs for cams with less than .500\" lift if aiming for over 6500 RPM.","brand":"AFR","offers":[{"title":"Default Title","offer_id":52686845051192,"sku":"AFR 1492","price":2126.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660180658.jpg?v=1784877438","url":"https:\/\/store.motormia.co\/products\/185cc-renegade-sbf-cylinder-head","provider":"MOTORMIA","version":"1.0","type":"link"}