{"product_id":"cnnp-9183ahr","title":"ProMaxx Performance Products | Project X | Small Block Chevy | Cylinder Head | 185cc | Straight Plug | Assembled | PN. 9183AHR","description":"\u003ch1\u003eProMaxx Performance Products | Project X | Small Block Chevy | Cylinder Head | 185cc | Straight Plug | Assembled\u003c\/h1\u003e\n\u003ch3\u003ePN. 9183AHR\u003c\/h3\u003e\n\u003cp\u003eThe ProMaxx Performance Products \u003cstrong\u003eProject X Series\u003c\/strong\u003e cylinder heads deliver exceptional performance at an unbeatable price point. Each head features a precision-machined 356-T6 aluminum casting, designed and assembled in the USA.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-smooth 356-T6 aluminum casting for superior heat dissipation and strength\u003c\/li\u003e\n\u003cli\u003eCompetition 5-angle valve job for maximum flow and sealing\u003c\/li\u003e\n\u003cli\u003eHand bowl blending for optimized airflow\u003c\/li\u003e\n\u003cli\u003e185cc intake runners for excellent power delivery\u003c\/li\u003e\n\u003cli\u003eDiamond honed Manganese Bronze valve guides for long service life\u003c\/li\u003e\n\u003cli\u003eUnshrouded chambers for improved combustion efficiency\u003c\/li\u003e\n\u003cli\u003eStraight plug configuration for easy plug access\u003c\/li\u003e\n\u003cli\u003eDesigned for Hydraulic Roller camshafts\u003c\/li\u003e\n\u003cli\u003eViton valve seals for excellent heat and oil resistance\u003c\/li\u003e\n\u003cli\u003eHardened steel valve seats for superior longevity\u003c\/li\u003e\n\u003cli\u003eARP head bolt compatible\u003c\/li\u003e\n\u003cli\u003eAssembled in the USA — machined to tight tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion Chamber:\u003c\/strong\u003e 64cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Runner:\u003c\/strong\u003e 185cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Runner:\u003c\/strong\u003e 66cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve:\u003c\/strong\u003e 2.02\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve:\u003c\/strong\u003e 1.60\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug Type:\u003c\/strong\u003e Straight Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Guide:\u003c\/strong\u003e Manganese Bronze\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Seal:\u003c\/strong\u003e Viton\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Seats:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Job:\u003c\/strong\u003e 5-Angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~55 lbs per pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eSold in pairs. Part number 9183AHR. Compatible with Small Block Chevy applications. Please verify fitment before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"ProMaxx Performance Products","offers":[{"title":"Default Title","offer_id":46709309505675,"sku":"PMH9183AHR","price":2050.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/jbspowercentre.com\/products\/cnnp-9183ahr","provider":"JBs Power Centre","version":"1.0","type":"link"}