{"product_id":"hamilton-cams-fire-ring-head-gasket-066-in-07-18-6-7l-cummins","title":"Hamilton Cams Fire Ring Head Gasket .066 in 07-18 6.7L Cummins","description":"\u003cp\u003eFire ring head gasket for the 6.7L Cummins at .066 inch thickness, using .105 inch wire at a 4.560 inch outside diameter. Intended for builds where cylinder pressure has climbed past what a factory gasket will contain, which in practice means somewhere north of 800 horsepower.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e.066 inch (1.75mm) gasket thickness\u003c\/li\u003e\n\u003cli\u003e4.560 inch wire outside diameter, .105 inch wire\u003c\/li\u003e\n\u003cli\u003eGroove specification: .017-.018 inch when cutting grooves in the head or block\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e2007.5-2018 Dodge and Ram 6.7L Cummins 24-valve\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eMachining and Installation\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-strength studs are required to achieve proper clamp load\u003c\/li\u003e\n\u003cli\u003eCylinder head must be within .003 inch end to end; machining both head and block is best practice\u003c\/li\u003e\n\u003cli\u003eIf the block is not surfaced, clean the deck with a 320 grit or finer stone to knock down high spots\u003c\/li\u003e\n\u003cli\u003eAlways use a .120 inch radiused cutter for groove formation\u003c\/li\u003e\n\u003cli\u003eTorque to 130 ft-lbs at startup, hot retorque at operating temperature, then retorque at least once more before applying full load or RPM\u003c\/li\u003e\n\u003cli\u003eEach retorque reduces valve lash, so readjust as needed\u003c\/li\u003e\n\u003cli\u003eLubricate nut, washer and threads liberally for consistent clamp load across all studs\u003c\/li\u003e\n\u003cli\u003eNever exceed the fastener manufacturer's torque limits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Details\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBrand: Hamilton Cams\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 07-g-6.7\u003c\/li\u003e\n\u003cli\u003eUPC: 857340008898\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hamilton Cams","offers":[{"title":"Default Title","offer_id":47609120653485,"sku":"07-g-6.7","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/5200\/0173\/files\/6.7f-2048x811_ada4eb93-7017-4f09-841f-d80a10a10518.jpg?v=1789536919","url":"https:\/\/www.dfispdx.com\/products\/hamilton-cams-fire-ring-head-gasket-066-in-07-18-6-7l-cummins","provider":"Diesel Fuel Injection Service","version":"1.0","type":"link"}