{"product_id":"aluminum-cylinder-head-for-mopar-small-block","title":"Aluminum Cylinder Head for Mopar Small Block","description":"The Speedmaster PCE281.2146 is a fully assembled, cast aluminum cylinder head designed for Mopar Small Block 318, 340, and 360 engines. It boasts a 170cc intake runner volume and a 65cc combustion chamber volume, engineered to enhance airflow and deliver improved power and torque.\n\nThis cylinder head is built for compatibility with hydraulic flat tappet camshafts and is capable of supporting engines exceeding 400 horsepower. The assembly specifications include a maximum lift of .600 inches and a coil bind limit of 1.060 inches. Valve spring pressures are rated at 145 lbs at 1.9 inches installed height for both intake and exhaust, with a closed seat pressure of 145 lbs.\n\nConstructed using gravity die casting for uniformity, these cylinder heads offer precise airflow optimization. While the combustion chambers are not CNC-machined, the overall design contributes to significant performance gains for your Mopar engine.","brand":"Speedmaster","offers":[{"title":"Default Title","offer_id":52663776444728,"sku":"PCE281.2146","price":1070.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687687040.jpg?v=1784329515","url":"https:\/\/store.motormia.co\/products\/aluminum-cylinder-head-for-mopar-small-block","provider":"MOTORMIA","version":"1.0","type":"link"}