--- title: "New Flat-Eight Crate Engine for Vintage 911s Is Coming Along Nicely" date: "2026-10-06" modified: "2026-10-06" authors: - name: "Jerry Perez" job_title: "Deputy Editor" link: "https://www.thedrive.com/authors/jerry-perez.md" url: "https://www.thedrive.com/news/new-flat-eight-crate-engine-for-vintage-911s-is-coming-along-nicely" categories: - "Aftermarket" - "Car Tech" - "News" --- # New Flat-Eight Crate Engine for Vintage 911s Is Coming Along Nicely ![]() *\Rünge screengrab via YouTube\* Boxer engines have a certain beauty and simplicity, whether they're flat-sixes or, in this case, Rünge's new flat-eight. The latest air-cooled mill to hit the market boasts 32 valves, 5.3 liters of displacement, dual overhead cams per bank, and a 12:1 compression ratio. The [video]() below shows the flat-eight on a dyno test run. Nothing dramatic happens, but it still catches your attention with a unique sound reminiscent of a vintage endurance racer. Plus, look at it. It's beautifully crafted. https://www.youtube.com/watch?v=C_w7N28v2i0 Furthermore, Rünge promises this new air-cooled unit will slip right into a classic 911 G-body, so if you've got a 1974 to 1989 Porsche 911 that needs an engine (or an upgrade), this should theoretically work. Rünge hasn't released the horsepower or torque specs for its new build, saying those figures are coming later this year, around December. I'd guess that's also when they'll reveal the price—though if you [look at some of the builder's former creations](), a bespoke engine can run you up to $250,000. I don't expect this one will be any different. The Minnesota-based company specializes in old-school coachbuilding, using traditional wooden bucks to hammer metal bodies to make beautiful cars. It also dabbles in furniture making and was established by Christopher Rünge back in 2011. *Got a tip? Email us at tips@thedrive.com* ## Author Jerry is responsible for upholding The Drive's ethos as an audience-first, enthusiast-driven car blog that serves up industry-leading news, reviews, culture, and motorsport coverage. Overseeing a staff of writers and editors from his home base in Indianapolis, he helps curate the site's daily rundown, as well as its medium- and long-term content strategies. Jerry joined The Drive in 2018 as a writer and worked as news editor and managing editor before becoming the deputy in 2023. As a lifelong car enthusiast and racing fan, Jerry believes that all cars are cool, but the people behind the machines are even cooler. This belief often gives The Drive a slightly different focus from most other car sites, where we explore the humanity behind the machines. When he's not obsessing over the day's biggest stories or hanging out at a race track, Jerry can be found behind the wheel of a car, most likely sharing a laugh with his teenage son or daughter. ### Author social links [Instagram]()