{"product_id":"assembled-aluminum-cylinder-heads-1","title":"Assembled Aluminum Cylinder Heads","description":"The Speedmaster PCE281.2043 cylinder heads are constructed from aluminum and designed for Ford Small Block 289, 302, and 351 Windsor engines. These assembled heads feature 175cc intake runners and 62cc combustion chambers, making them suitable for hydraulic flat tappet camshaft applications.\n\nKey specifications include a maximum valve lift of 0.550 inches, a coil bind limit of 0.740 inches, and seat pressure of 130 lbs at 1.8 inches for both intake and exhaust valves. The closed seat pressure is 110 lbs. These heads come equipped with dual springs and a damper spring for enhanced performance and reliability.\n\nWhile the product information does not explicitly detail post-installation requirements or specific hardware prerequisites, it is important to note that performance engine components often benefit from professional installation and tuning. Compatibility is specific to the Ford SB 289, 302, and 351 Windsor engine families.","brand":"Speedmaster","offers":[{"title":"Default Title","offer_id":52663776084280,"sku":"PCE281.2043","price":1145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687687028.jpg?v=1784329514","url":"https:\/\/store.motormia.co\/products\/assembled-aluminum-cylinder-heads-1","provider":"MOTORMIA","version":"1.0","type":"link"}