What is GTO Tri-power?
Tri-Power was the name for an arrangement of three two-barrel carburetors installed on large performance V8s offered by the Pontiac Division of General Motors in the late 1950s and 1960s. Tri-Power often included a hood bulge to accommodate the carburetor set-up and identifying badging on the vehicle’s exterior.
How much horsepower does a 1967 GTO have?
Muscle Car Image Gallery Something fresh lurked behind the 1967 Pontiac GTO’s gorgeous new grille: The standard engine was now a 400-cid enlargement of the 389-cid V-8. Compression was unchanged, and the base version, with its four-barrel carburetor, again made 335 horsepower.
What engines were available in the 67 GTO?
Raw power, courtesy of a standard 389- or 400-cubic-inch V-8. The original 6.5-liter engine (actually 6.4 until 1967) had a 4.06-inch bore and 3.75-inch stroke, and used its 10.75:1 compression ratio, mild camshaft and Carter AFB four-barrel carburetor to produce 335hp at 5,000 rpm and 431-lbs. -ft.
How much horsepower does a 389 Tri-Power have?
Hagerty’s series of “Redline Rebuild” videos recently saved a beat up 389 Tri-Power V-8 engine. The 389 cubic-inch V-8 engine hails from the Pontiac GTO and features three two-barrel carburetors that pushed the engine up to 348 horsepower back in the day. Regular 389 V-8 engines made 325 hp.
What is Tri-Power Corvette?
For 1969, three available “big-block” engine choices included the “Tri-Power” RPO L68 427ci V8 developing 400 rated horsepower and 460 pounds-feet of tire-melting torque. The seller states the engine is numbers-matching, mated to a date-coded correct “CT” 1969 (GM Crate Transmission) Muncie 4-speed.
Is a Pontiac 389 considered a big block?
The Pontiac Version of the 455 Even the small displacement 326 CID motor is considered a big block. Therefore, the 389 Tri-power Trophy engine is also based off of the 326 block casting.
What is a tri-power GTO?
This original GTO is often referred to as the first American muscle car. An option on the original 1964 GTO, the Tri-Power engine would eventually be phased out by the Rochester quadrajet carburetor in 1967. Its performance legend would persist throughout generations, making Tri-Power editions uniquely desirable for today’s collectors.
When did I put a tripower on my 1966 GTO?
In 1986 I restored a 1966 GTO and, of course, put a tripower on it. I began buying, selling, and restoring these set-ups in 1987. on a limited basis. Over the years I have become very familiar with the Pontiac tripowers from 1957 to 1966.
What kind of engine does a 1967 Pontiac GTO have?
The 1967 Pontiac GTO was offered in three body types; coupe, hardtop and convertible. A 400 cu inch V8 engine was standard for 1967 GTO. The standard engine could yield 335hp @5200 rpm with a torque of 431@3200. Since multiple carburetor system was no more a possible choice, it was replaced with a Rochester four barrel carburetor.
How fast can a 1967 GTO go from 0-60 in?
It could accelerate 0-60 in just 4.9 sec. during a test, 1967 GTO completed its quarter mile in 14.2 seconds. 1967 can easily be termed as the true golden era of muscle cars. Almost every competitor was trying to take the goat down, unleashing beast after beast.