{"id":447,"date":"2026-09-28T11:59:08","date_gmt":"2026-09-28T11:59:08","guid":{"rendered":"https:\/\/stepgradesmotor.com\/product\/1984-mack-em6-285\/"},"modified":"2026-09-29T20:30:56","modified_gmt":"2026-09-29T20:30:56","slug":"1984-mack-em6-285","status":"publish","type":"product","link":"https:\/\/stepgradesmotor.com\/pl\/product\/1984-mack-em6-285\/","title":{"rendered":"1984 Mack EM6-285"},"content":{"rendered":"<p>1984 Mack EM6-285 diesel engine, 285 HP rating, Maxidyne high torque build, aftercooled, mechanical fuel system, 2 valve heads.<\/p>\n<p>EXCELLENT RUNNER, SEE VIDEO. SHOWS 50 PSI OIL PRESSURE AT IDLE AND 80 PSI AT MID THROTTLE DURING COLD TEST RUN. NO SMOKE OR BLOWBY OBSERVED, STRONG RUNNING ENGINE.<\/p>\n<p>Specifications<\/p>\n<p>Manufacturer<br \/>\nMack<\/p>\n<p>Model<br \/>\nEM6-285<\/p>\n<p>Year<br \/>\n1984<\/p>\n<p>Stan<br \/>\nUsed<\/p>\n<p>Stock Number<br \/>\n17770<\/p>","protected":false},"excerpt":{"rendered":"<p>Genuine imported 1984 Mack EM6-285 \u2014 an inspected, quality-checked truck engine from Stepgrades Motor, ready to ship UK-wide with fast dispatch and our quality guarantee.<\/p>","protected":false},"featured_media":3060,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[20],"product_tag":[],"class_list":["post-447","product","type-product","status-publish","has-post-thumbnail","product_cat-truck-engines","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/product\/447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/comments?post=447"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/media\/3060"}],"wp:attachment":[{"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/media?parent=447"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/product_brand?post=447"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/product_cat?post=447"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/stepgradesmotor.com\/pl\/wp-json\/wp\/v2\/product_tag?post=447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}