Swindon Powertrain M64 kit proves even more popular than we thought it would...
Swindon Powertrain M64 kit proves even more popular than we thought it would.Back in 2023, Swindon Powertrain announced a new upgrade for the final air-cooled Porsche flat-sixes. You might remember it:was a pretty prosaic name for a very exciting bit of engineering, introducing four valves per cylinder and aluminium construction to the old engines.
Swindon Powertrain M64 kit proves even more popular than we thought it would...Back in 2023, Swindon Powertrain announced a new upgrade for the final air-cooled Porsche flat-sixes. You might remember it:was a pretty prosaic name for a very exciting bit of engineering, introducing four valves per cylinder and aluminium construction to the old engines. It meant more power, more torque, less weight and better flow, which all sounded very beneficial to the concept of a reimagined 911. Perhaps the biggest appeal, however, was what the M64 CHK could do for revs: lighter internals can handle higher engine speeds, and Swindon claimed up to 12,000rpm. We’ve all seen enough Tuthill videos to know how spectacular an air-cooled flat six at those sorts of revolutions can sound. Plenty of others saw the appeal as well, as the firm has today confirmed that one hundred M64 Cylinder Head Kits have now been sold. Given it was only launched in October 2023, and that it costs £30k plus taxes - and it’s only for 964s and 993s - that seems impressive. In case you thought the demand for Porsche hot rods was dying down… , either on top of a 3.6 revving to 10 or a 9,000rpm 4.0-litre - which accounted for 15 of the Cylinder Head Kit sales. Apparently the rest have gone to ‘engine builders across Europe and around the world including the USA, Japan and Australia for use in both road and track 911s.’ It’s good to know that there are now old flat sixes screaming beyond GT3 levels around the globe. Swindon Powertrain’s MD Raphaël Caillé said: “We’re proud to be helping so many engine builders and 911 enthusiasts… unlock substantial extra power and torque to create truly standout builds with this high-revving upgrade.” The work isn’t stopping here, either. Caillé added: “We’re never content to stand still, so expect further high-performance developments to be announced soon.” Which is pretty exciting when kicking off from 12,000rpm. Already that’s included an agreement to develop a 5.3-litre flat-eight for Runge Cars in the US, which currently makes classic flat-four sports cars (Gary Oldman, of all people,
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