If the term hot rod means “a vehicle specially modified to give it extra power and speed,” then the vehicle up for auction is the epitome of this genre. Power in this 1974 Porsche 911 Targa (dubbed GT8RS) comes from a Big Block Chevy 427ci aluminum V8. There’s nothing new about a big American V8 making its way into a vintage Porsche, however, a Targa hot rod such a this, is not something you see every day. This is a good chance to own a very unique car with some very cool features.
The V8 engine is coupled to a Porsche 930 turbo 4-speed transaxle. The engine swap was done in 2000 at a total cost of $9,600 along with an MSD ignition box with 7k RPM limiter and kevlar/Ceramic multi stage clutch. The engine was freshened in 2013 (about 3,000 miles ago) including new rings, bearings, 5 angle valve job, and new roller lifters.
This Targa was built as a fast street and autocross car by its original owner in Ohio. As seen in the driving videos below, the power delivery is strong and linear with plenty of sound coming into the cabin to further enhance the experience.
The exterior is finished in a Black satin paint, giving it a raw and sinister look. To reduce weight, the Targa was converted from metal to fiberglass body panels, which includes: the doors, fenders, spoiler, and trunk. To further reduce weight, the back seats and rear carpet have been stripped out. The car still retains its original glass windows. A custom carbon fiber hood with radiator intake cutouts was installed to help the engine breathe more efficiently.
Custom leather sport seats were installed and are in excellent condition. The door panels are finished in orange leather alongside orange seat belts and orange piping. A Prototipo leather wrapped quick release steering wheel was installed.
The 427 Chevy “Big Block Engine” was a 427 cubic-inch (7.0 L) version of the 409 engine used in the 1963 Impala Sport Coupé. This was a special package created for drag racers, as well as NASCAR, made from aluminum body parts and a cowl-induction air intake system. The aluminum body parts were fabricated in Flint, Michigan at the facility now known as GM Flint Metal Center.
This car comes with 2 sets of keys and 10 pages of build and service history.