1968 Pontiac GTO – Butler Performance 461 Stroker V8 | Tremec TKX 5-Speed | Documented Build
The 1968 Pontiac GTO is one of the most iconic muscle cars of all time, and this example combines classic Pontiac styling with a professionally built Butler Performance drivetrain designed to deliver the kind of power and reliability enthusiasts demand.
Under the hood is a documented Butler Performance 461 cubic-inch stroker V8 built from a Pontiac 400 block. Included with the car are Butler Performance invoices detailing the engine build, which features a forged rotating assembly including a 4.250-inch forged stroker crankshaft, Ross forged pistons, Scat H-beam connecting rods, ARP hardware, hydraulic roller camshaft, Johnson hydraulic roller lifters, balanced assembly, and extensive machine work performed by Butler Performance.
The engine is topped with ported Edelbrock/Butler aluminum cylinder heads, an Edelbrock Performer intake manifold, Holley 770 Ultra Street Avenger carburetor, MSD ignition system, and Doug’s headers. The result is a powerful street combination that delivers tremendous torque, strong throttle response, and the unmistakable sound of a built Pontiac V8.
Power is sent through a Tremec TKX 5-speed manual transmission, providing modern drivability and comfortable highway cruising. Out back is a 10-bolt rear axle equipped with a new limited-slip differential and 3.73:1 gears, making this GTO equally at home on the freeway, at a cruise-in, or on a winding back road.
Additional features include:
This is not a stock restoration. It is a thoughtfully upgraded driver’s GTO that retains the character of Pontiac’s golden era while benefiting from modern performance components and one of the most respected names in Pontiac engine building.
Whether you’re looking for a car to enjoy on weekend drives, local shows, or long-distance road trips, this GTO offers the rare combination of documented performance, classic muscle car styling, and modern drivability.
If you’ve been searching for a real Pontiac-powered GTO with a professionally built Butler Performance engine and a Tremec 5-speed, this is a car that deserves serious consideration.
Vehicle shown by appointment.
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