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'64 GTO Tri Power 389

Pontiac's Triple-Carburetion for Gran Turismo Omologato!

'64 GTO Tri Power 389

Widely known as the first true Muscle Car, the legendary 1964 Pontiac Tempest with GTO option came with a high-performance 6.5 litre V8, 389 cubic inches, 10.75:1 compression and required premium fuel. For buyers that wanted extra rubber-burning power, there was a "Tri-Power" option that featured a trio of Rochester 2G two barrel carburetors which delivered 348 horsepower at 4800 rpm. And if that extra horsepower from the 3x2 induction wasn't enough for street cred, the sound of all three carbs opening up under full throttle was music to the ears of performance enthusiasts!

Oldsmobile Rocket V8

The Revolutionary Rocket V8 a Favorite for '50s Hot Rodders

Oldsmobile Rocket V8

When Oldsmobile's new "Rocket" V8 debuted in 1949 in was a true game changer for General Motors as it was the first mass-produced overhead-valve, high-compression V8 engine from the division. Featuring an advanced short-throw layout, the design provided reduced friction and wear. Starting at a displacement of 303 cubic inches, this first-generation Olds Rocket engine grew to 394 cubes for 1964. This hot-rodded example is adorned with six Stromberg 94 two-barrel carburetors mounted on an Offenhauser aluminum log intake manifold, topped off with anodized injector stacks.

Chevrolet L72 427 Big Block

Sixties Power for the Yenko-Supercars!

Chevrolet L72 427

Don Yenko built special high-performance cars at his Canonsburg, PA, Chevy dealership and the top-performing powerplants he provided in them were the "L72" 427 big blocks. Available in the late-1960s, these were potent 425-horsepower engines that featured rectangular port cylinder heads, 2.19-inch intake, 1.72-inch exhaust valves, 11.0:1 compression pistons, heavy-duty connecting rods, forged crankshaft, strengthened with 4-bolt main bearings. The camshaft was of high lift design (.520-inch) and used solid lifters for maximum RPMs. A double-pumper Holley four-barrel carburetor (rated at 780 cfm with dual feed) was mounted atop an aluminum high-rise intake manifold. These legendary engines were highly respected on both the street and the drag strip!

426 Street Hemi

The Engine That Ruled The Streets During the Muscle Car Era

426 Hemi
First designed in 1963 and released in "street form" for the 1966 model year, the 426 Hemi was known as the "King Kong" ultimate Mopar powerplant of the day. The huge cylinder heads with hemispherical combustion chambers was the design method Chrysler engineers chose to provide tremendous breathing capacities throughout all RPM ranges. By being fitted with colossal 2.25-inch intake and 1.94-inch exhaust valves, the heads were extremely free-flowing and put this powerplant in the winner's circle in all-out competition. The street version was equipped with 10.25:1 compression ratio and fitted with a pair of inline Carter AFB four barrel carburetors, delivering 425 horsepower with 490 foot-pounds of torque, delivering stop-light to stop-light serious performance that could smoke the tires in an instant!

'56 Chevy Pro Street

454 Cubic Inches of Supercharged Big Block Power!

Chevrolet's largest engine ever produced from the factory was the LS7 454, a big block powerplant that came in 1970. The raw power of these engines gave inspiration to builders of street cars ever since, including this highly modified 800-horsepower Pro Street example! Fitted with a BDS 8-71 supercharger and dual 850-cfm Holley four-barrels, high-lift roller camshaft and forged pistons, this radical competition-built 454 has all the necessary ingredients for all-out performance all the while being streetable. Aluminum cylinder heads with 2.25-inch intake valves pull in the massive air intake, with 2 1/4-inch exhaust headers expelling the spent exhaust fumes. Wild!
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