{"id":20492,"date":"2025-10-28T02:00:14","date_gmt":"2025-10-28T06:00:14","guid":{"rendered":"https:\/\/gm-techlink.com\/?p=20492"},"modified":"2025-10-28T11:29:06","modified_gmt":"2025-10-28T15:29:06","slug":"corvette-z06-zr1-5-5l-v8-engine-restriction","status":"publish","type":"post","link":"https:\/\/gm-techlink.com\/?p=20492","title":{"rendered":"Corvette Z06, ZR1 5.5L V8 Engine Restriction"},"content":{"rendered":"<p style=\"font-weight: 400;\">The 5.5L flat-plane crank V8 engine that powers the 2023-2026 Corvette Z06 generates 670 horsepower. Add the twin turbos on the 2025-2026 Corvette ZR1 and the engine produces 1,064 horsepower \u2014 making it the most powerful engine ever offered in a production Corvette. (Fig. 10)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400; text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20484\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2025\/10\/F10-Restriction-corvette-zr1-lt7-201.jpg\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 10<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">As part of GM\u2019s commitment to continuous improvement, the 5.5L engine (RPO LT6) in the Corvette Z06 and the 5.5L engine (RPO LT7) in the Corvette ZR1 have been placed on a part restriction.<\/p>\n<p style=\"font-weight: 400;\">When diagnosing possible engine failure, refer to #PIP6089 and gather the required information before contacting the Technical Assistance Center (TAC).<\/p>\n<p style=\"font-weight: 400;\">The engine part number will need to be provided to TAC. It can be found in the center of the front cover. (Fig. 11, #1)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400; text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20485\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2025\/10\/F11-Restriction-2.jpg\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 11<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">For more information, refer to #PIP6089.<\/p>\n<p style=\"font-weight: 400;\"><em>&#8211; Thanks to Bryan Salisbury<\/em><\/p>\n<p style=\"font-weight: 400;\">\n","protected":false},"excerpt":{"rendered":"<p>The 5.5L flat-plane crank V8 engine that powers the 2023-2026 Corvette Z06 generates 670 horsepower. Add the twin turbos on the 2025-2026 Corvette ZR1 and the engine produces 1,064 horsepower [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[216],"tags":[],"class_list":["post-20492","post","type-post","status-publish","format-standard","hentry","category-2025-october-b"],"_links":{"self":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/20492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20492"}],"version-history":[{"count":2,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/20492\/revisions"}],"predecessor-version":[{"id":20502,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=\/wp\/v2\/posts\/20492\/revisions\/20502"}],"wp:attachment":[{"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlink.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}