Bruce Nunnally Posted December 29, 2017 Report Share Posted December 29, 2017 Sportscar365 has learned that IMSA has approved the use of a 5.5 liter normally aspirated V8 engine instead of Cadillac’s 6.2-liter unit that took Ricky and Jordan Taylor to the Prototype championship this year. http://sportscar365.com/imsa/iwsc/cadillac-to-debut-updated-dpi-engine/ this 5.5L variant has been a 'mythical' "coming soon" size for years. Interesting that it has emerged. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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