{"product_id":"speed-kit-212-predator-hemi-choose-options-stage-4","title":"Speed Kit, 212 Predator Hemi - Stage 4  (Choose Options)","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor serious engine builders looking for great power and good reliability, we offer our Stage 4 kit! This package is similar to our \u003c\/span\u003e\u003cb\u003eStage 3\u003c\/b\u003e\u003cspan\u003e, but adds a ported and milled hemi head, stainless steel valves, billet rockers, and a great all-around camshaft package. Allows up to 20hp or more!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePorted and Milled Head\u003c\/li\u003e\n\u003cli\u003eApproximately 10:1 Compression Ratio for Use with Pump Gas\u003c\/li\u003e\n\u003cli\u003eStainless Steel, High-Flow 28mm Intake and 25mm Exhaust Valves\u003c\/li\u003e\n\u003cli\u003e37lb Springs\u003c\/li\u003e\n\u003cli\u003e1.2 Ratio Billet Steel Rocker Arms\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003e280-0611 Camshaft\u003c\/li\u003e\n\u003cli\u003eStud Kit\u003c\/li\u003e\n\u003cli\u003eLash Caps\u003c\/li\u003e\n\u003cli\u003eLong Billet Rod (+.020\")\u003c\/li\u003e\n\u003cli\u003eComplete Gasket Kit\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eCarburetor Option\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Flywheel\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003e\u003cbr\u003e\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eThis kit will not fit non-hemi Predator engines. Please see our\u003cspan\u003e \u003c\/span\u003e\u003cb\u003enon-hemi kits\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003efor those applications. These kits are intended for experienced engine builders. Some clearancing, fitting, and other engine building \"tricks\" may be necessary. Filter should be sprayed with K\u0026amp;N type oil, especially for dirt applications. Picture is for reference only. Actual content is based on above description and selections. The flywheel shown is optional.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAluminum flywheel required.\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eStock flywheels are prone to failure and are very dangerous!\u003cbr\u003e\u003cbr\u003eDue to the head work involved in this kit, please allow 1 week before shipping.\u003c\/i\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Carburetor (Customer to Supply Carb) \/ No Flywheel","offer_id":43060117405755,"sku":"NR-STAGE4HOPUP-PH-1","price":453.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor (Customer to Supply Carb) \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117438523,"sku":"NR-STAGE4HOPUP-PH-2","price":786.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor (Customer to Supply Carb) \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117471291,"sku":"NR-STAGE4HOPUP-PH-3","price":592.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ No Flywheel","offer_id":43060117504059,"sku":"NR-STAGE4HOPUP-PH-4","price":547.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117536827,"sku":"NR-STAGE4HOPUP-PH-5","price":786.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117569595,"sku":"NR-STAGE4HOPUP-PH-6","price":592.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ No Flywheel","offer_id":43060117602363,"sku":"NR-STAGE4HOPUP-PH-7","price":658.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117635131,"sku":"NR-STAGE4HOPUP-PH-8","price":991.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117667899,"sku":"NR-STAGE4HOPUP-PH-9","price":797.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel","offer_id":43060117700667,"sku":"NR-STAGE4HOPUP-PH-10","price":599.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117733435,"sku":"NR-STAGE4HOPUP-PH-11","price":932.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117766203,"sku":"NR-STAGE4HOPUP-PH-12","price":738.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4HOPUP-PH-2.png?v=1764893769","url":"https:\/\/gtcracing.com\/products\/speed-kit-212-predator-hemi-choose-options-stage-4","provider":"GTC Racing","version":"1.0","type":"link"}