{"product_id":"cnnp-9198s","title":"ProMaxx Performance Products | Maxx Series | Big Block Chevy | Cylinder Head | 300cc | Hydraulic Flat Tappet | PN. 9198S","description":"\u003ch1\u003eProMaxx Performance Products | Maxx Series | Big Block Chevy | Cylinder Head | 300cc | Hydraulic Flat Tappet\u003c\/h1\u003e\n\u003ch3\u003ePN. 9198S\u003c\/h3\u003e\n\u003cp\u003eThe ProMaxx Performance Products \u003cstrong\u003eMaxx Series\u003c\/strong\u003e cylinder heads take affordable performance to the next level. Featuring an ultra-smooth Grade A 356-T6 aluminum casting that is precision CNC machined, these heads deliver CNC-quality flow numbers at an as-cast price.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eGrade A 356-T6 aluminum precision CNC machined casting\u003c\/li\u003e\n\u003cli\u003e5-angle competition valve job for maximum flow and efficiency\u003c\/li\u003e\n\u003cli\u003eDiamond honed Manganese Bronze valve guides\u003c\/li\u003e\n\u003cli\u003e300cc intake runners — optimized for high RPM power\u003c\/li\u003e\n\u003cli\u003eUnshrouded combustion chambers for improved burn efficiency\u003c\/li\u003e\n\u003cli\u003eSpring package compatible with Hydraulic Flat Tappet camshafts\u003c\/li\u003e\n\u003cli\u003eViton valve seals resist heat and oil degradation\u003c\/li\u003e\n\u003cli\u003eHardened steel valve seats for extended service life\u003c\/li\u003e\n\u003cli\u003eMachined and assembled in the USA\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 300cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Runner:\u003c\/strong\u003e 72cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Valve:\u003c\/strong\u003e 2.19\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Valve:\u003c\/strong\u003e 1.72\"\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 ~68 lbs per pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eSold in pairs. Part number 9198S. Compatible with Big Block Chevy applications. Please verify fitment before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"ProMaxx Performance Products","offers":[{"title":"Default Title","offer_id":46709291188363,"sku":"PMH9198S","price":2476.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/jbspowercentre.com\/products\/cnnp-9198s","provider":"JBs Power Centre","version":"1.0","type":"link"}