{"product_id":"stomp-yx150-yx160-pit-bike-cylinder-head-60mm","title":"Stomp YX150 YX160 Pit Bike Cylinder Head 60mm","description":"\u003cp\u003e\u003cstrong\u003eStomp YX150 YX160 Pit Bike Cylinder Head 60mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBrand new replacement cylinder head for compatible \u003cstrong\u003eYX150 and YX160 horizontal pit-bike engines\u003c\/strong\u003e. Fitment is determined by the engine fitted to the bike, not by the frame badge alone.\u003c\/p\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel \/ Application\u003c\/th\u003e\n\u003cth\u003eEngine Code\u003c\/th\u003e\n\u003cth\u003eFitment\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStomp\u003c\/td\u003e\n\u003ctd\u003eStomp models fitted with YX150 engine\u003c\/td\u003e\n\u003ctd\u003eYX150 \/ 1P60FMJ\u003c\/td\u003e\n\u003ctd\u003eDirect\u003c\/td\u003e\n\u003ctd\u003eConfirm engine code\/casting before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStomp\u003c\/td\u003e\n\u003ctd\u003eStomp KZR 160 and other models fitted with YX160 engine\u003c\/td\u003e\n\u003ctd\u003eYX160 \/ 1P60FMK\u003c\/td\u003e\n\u003ctd\u003eDirect\u003c\/td\u003e\n\u003ctd\u003eDo not assume Z155-powered Stomp 160 models use this head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eReference Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine family:\u003c\/strong\u003e YX150 \/ YX160\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYX150 engine code:\u003c\/strong\u003e 1P60FMJ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYX160 engine code:\u003c\/strong\u003e 1P60FMK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston \/ bore-family compatibility:\u003c\/strong\u003e 60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet valve diameter:\u003c\/strong\u003e approximately 28 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust valve diameter:\u003c\/strong\u003e approximately 23 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake port diameter:\u003c\/strong\u003e approximately 26.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust port diameter:\u003c\/strong\u003e approximately 21 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead length:\u003c\/strong\u003e approximately 100 mm between machined reference faces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort style:\u003c\/strong\u003e later CRF-angle YX head\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003e1 × cylinder head assembly supplied as shown in the product photographs.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCheck the engine code before ordering.\u003c\/strong\u003e A pit-bike model may have been supplied with different engines during its production life or may have had an engine conversion.\u003c\/p\u003e\n\u003cp\u003eThis listing is for the YX150 \/ YX160 CRF-angle cylinder-head family. It should not be treated as a direct replacement for a Lifan 150 engine, KLX-angle head or Z155 head.\u003c\/p\u003e\n\u003cp\u003eA YX-style head can be adapted to some Z155 applications only with additional compatibility work such as the correct inlet manifold arrangement and original Z155 cam sprocket. That is a conversion, not direct fitment, and Z155 models are therefore not advertised as direct-fit applications here.\u003c\/p\u003e\n\u003cp\u003eCompare the casting, port angle, mounting points, cam arrangement and engine code with the existing cylinder head before installation.\u003c\/p\u003e\n\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand New\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eDelivery \u0026amp; Returns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFree UK delivery with an estimated 2–3 working-day service\u003c\/li\u003e\n\u003cli\u003e30-day returns, subject to the item being returned in its original condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eCylinder-head installation requires correct cam timing and valve-clearance adjustment. Installation should be carried out by a competent engine technician and the engine should be checked before use.\u003c\/p\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":57435218805111,"sku":"00741-ENG","price":103.0,"currency_code":"SHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/8771\/6007\/files\/20260828_124459.jpg?v=1788425789","url":"https:\/\/www.motomaniauk.com\/products\/stomp-yx150-yx160-pit-bike-cylinder-head-60mm","provider":"Moto Mania UK","version":"1.0","type":"link"}