{"product_id":"ded-18cc-big-valve-billet-race-head-for-honda-gx200-clone-engines","title":"DED 18cc ''Big Valve'' Billet Race Head for Honda GX200 \u0026 Clone Engines","description":"\u003cstyle\u003e\n.footer-links { text-align: left; padding: 20px; margin: 30px 0; font-size: clamp(12px, 2.5vw, 16px); } .footer-links a { color: #000; text-decoration: none; font-weight: 700; margin: 0 10px; border-bottom: 2px solid #ffcc00; transition: all 0.3s; display: inline-block; } .footer-links a:hover { color: #ffcc00; }\n\u003c\/style\u003e\n\u003cdiv class=\"nonselectable\"\u003e\n\u003cdiv class=\"footer-links\"\u003e\n\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/parts-for-powersports\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/cylinder-head-kart-racing\" title=\"Cylinder Heads\"\u003eHead\u003c\/a\u003e | \u003ca href=\"https:\/\/gokartsusa.biz\/pages\/head-selection-guide\" title=\"Guide\"\u003eGuide\u003c\/a\u003e | \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Racing Engine Parts\"\u003eHotrod\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eBig Valve - Small Block 18cc Billet Head by\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eDynamic Engine Development \/ DED Racing\u003c\/i\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003ePremium Stainless Valves: 1.35\" Intake and 1.1\" Exhaust\u003c\/li\u003e\n\u003cli\u003eFully CNC machined from a solid billet of aluminum\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e4 bolt flanges with silicone O-ring seals (no gaskets to worry about) superior seal\u003c\/li\u003e\n\u003cli\u003eOffset intake valve to de-shroud from cylinder wall (better flow)\u003c\/li\u003e\n\u003cli\u003eOffset Rocker Billet Roller Rockers (to accommodate the offset valve location)\u003c\/li\u003e\n\u003cli\u003eShaft rockers are lighter than stud mounted and at least as rigid\u003c\/li\u003e\n\u003cli\u003eThe correct intake to exhaust valve size, smaller exhaust valves allows us to move the intake valve away from the cylinder wall\u003c\/li\u003e\n\u003cli\u003eHigh velocity, correctly sized ports, peak power ~8750rpm with a flat long power curve\u003c\/li\u003e\n\u003cli\u003eRockers made from 2024 material for its superior mechanical properties\u003c\/li\u003e\n\u003cli\u003eRockers use full compliment needle bearing pivot for minimal friction\u003c\/li\u003e\n\u003cli\u003eNon Beryllium Copper Valve Seats (4x the heat conduction of steel seats to remove heat from valves) (same material as cup car engines)\u003c\/li\u003e\n\u003cli\u003eHigh Efficiency Combustion Chamber with 10mm spark plug to reduce distortion and seat warp caused by 14mm plugs\u003c\/li\u003e\n\u003cli\u003eMaximized cooling by use of many well-placed fins to aid in reliability and power\u003c\/li\u003e\n\u003cli\u003eHigh performance manganese bronze valve guides\u003c\/li\u003e\n\u003cli\u003eCompetition Cams premium valves springs Included - Constructed from Pacaloy®\u003c\/li\u003e\n\u003cli\u003eDED Billet 7075 light weight high strength retainers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eBillet Head\u003c\/li\u003e\n\u003cli\u003eValves, Springs, and Retainers\u003c\/li\u003e\n\u003cli\u003eO-Ring Seals\u003c\/li\u003e\n\u003cli\u003eHead Bolts and Other Hardware\u003c\/li\u003e\n\u003cli\u003e1.25:1 True Shaft Roller Rockers\u003c\/li\u003e\n\u003cli\u003eIntake and Exhaust Flanges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe new big valve version is designed for builds with 2.7\" bores and bigger . It has both bigger valves and bigger (correctly sized) larger ports than the std SBH. It utilizes an efficient 18cc combustion chamber.\u003c\/div\u003e\n\u003cdiv\u003e  \u003c\/div\u003e\n\u003cdiv\u003eThis head will help your big bore build reach its full potential! Optimized for bottom end pull and still able to hit high horsepower numbers on the larger displacement \u0026gt;236cc builds.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ci\u003eDED Racing\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003ehas taken its 20 years of air cooled cylinder head development experience and integrated it into their new billet Honda\/Clone head. Introducing the SBH designed to be an affordable upgrade of modified cast heads. With its integrated rocker arms, superior flow, and rigidity, it offers performance and value that can't be matched by a cast head or even other billet heads. It is designed to be a true bolt-on product where the critical items are included, so you don't have to search far and wide to get your project together. This also allows them to ensure that things like rocker arm geometry is optimized and perfect. (Simply, More Powerful- This is a product to make your sport more fun, not more frustrating).\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eBillet Flywheel Required\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e1\/4\" Chromoly Pushrod Required\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eBillet Connecting Rod Required\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003eHigh Performance Piston Highly Recommended\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eRun with at least 16 OZ of 4T Briggs and Stratton\/Amsoil Oil\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e.315 or less lift Cam Shaft with the 1.25\" rockers this lift is optimal.- Bigger Cams waste torque and reduce the overall power output of the head.\u003c\/li\u003e\n\u003cli\u003e28-32mm Carburetor, or HL 380 series Tillotson style carb - Intake ID is 1.125\"\u003c\/li\u003e\n\u003cli\u003eMethanol Fuel is highly recommended for its cooling and power effect.\u003c\/li\u003e\n\u003cli\u003eRace Gas\/Premium Mix 50\/50% but, a 206 could probably run on 93 oct OK for drag racing applications where less heat is present.\u003c\/li\u003e\n\u003cli\u003eTiming 28-31 on Gas or 31-34 on Methanol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cb\u003eRequires the use of a SFI approve Billet Flywheel! Never use anything but an SFI billet flywheel with our engine products.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eThis head is designed for sanction racing events only and must be installed by a qualified technician with knowledge of the sport you compete in.\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060114128955,"sku":"NR-SBH-BV-DED","price":675.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/SBH-BV-DED-2.png?v=1764893756","url":"https:\/\/gtcracing.com\/products\/ded-18cc-big-valve-billet-race-head-for-honda-gx200-clone-engines","provider":"GTC Racing","version":"1.0","type":"link"}