Hover Hovemann races this Opel Kadett C race car in European hill climb events. The car is built on a C4 Corvette ZR-1 chassis with a built 5.7 L LT5 V8 built by Risse Motorsport. Engine Labs reports the motor features a flat-plane crankshaft, Auto Verdi H-beam rods, custom JE pistons, CAT cams custom-ground camshafts, and eight 56 mm throttle bodies. A six-speed sequential transmission sends power to the Corvette rear end. Enjoy the high-revving V8 sounds below.
Source: Rikverse and Hovemann Car Design FB pabe
From all German language sources I’ve read over the years its a roadcar sourced engine that has been further enhanced by Risse Motorsport. It being a company that regularly made GM C20s rev over 10k rpm and create over 150 PS per litre, I can believe them being able to wring more than 750 PS from the LT5 (~400 PS stock)
…also just gone over the photos I made of the car last summer at a hillclimb. Looks like it had standard valve covers, just with the “Corvette” name taken off and some RISSE and LOTUS stickers added.
Thank you for sharing that. So it is a 5.7 L GM LT5 V8.