This Mad Opel Kadett Has A Flat-Plane-Converted Chevy V8 Under The Bonnet

The LT5 engine in this Kadett was taken from a C4 Corvette, and now produces upwards of 650bhp and revs to nearly 10,000rpm

Remind me later

When this Kadett was made in 1976, Opel probably didn’t expect this to happen to it. Originally available with a maximum of 108bhp, this bright yellow Kadett now pushes out more than 650bhp.

Its 5.7-litre Chevrolet LT5 V8 engine currently revs to a dizzying 10,000rpm. For a while, the engine used the standard cross-plane crank, but - as detailed in an article on Engine Labs from a couple of years ago - the mega Kadett now has a flat-plane crank, allowing it to rev into the stratosphere.

The car competes in hill climb competitions across the world, and is piloted by seven-time national hill climb champion Holger Hovemann.

The Kadett has a little secret, though. The floor pan, engine and greasy bits are all from a C4 Corvette donor car that crashed at some point, and a heavily-modified Kadett body has been slotted on top. So it’s not really a Kadett, but we’re sure that detail won’t stop you enjoying the video above.

Video via Reddit Cars