When did the Pontiac 400 V8 come out?
Pontiac 400 V8 Engine. The Pontiac 400 6.6 Liter engine was first introduced in 1967. This version of the Pontiac V8 engine was used in the GTO, Firebird, and the Trans-Am Firebird. The 400 was inspired by the Pontiac 389 V8 and proved to be the last Pontiac engine with closed chambered heads.
What are the specs of a Pontiac 400?
Max Torque: 400 @ 3600 rpm Stroke: 3.75 Bore: 4.1212 Compression: 8.0 Firing Order: 18436572
Why was a four barrel carburetor used in the Pontiac 400?
A four-barrel carburetor allowed the engine to have more air, and that resulted in more horsepower for speed. Valve angles and diameters were also adjusted according to the way the engine would be used. Higher performance engines had valve intakes at 2.11 inches and exhaust valves at 1.77 inches.
What was the compression ratio of the Pontiac 400?
Compression ratio had gone down to 7.6:1. When introduced in 1967, the 400 engine was available on most Pontiacs, from the GTO that had a 115-inch wheelbase, to the Firebird with its 108-inch wheelbase, as well as the Bonneville, Catalina and Executive on either a 121- or 124-inch wheelbase.
What kind of engine does a Pontiac 400 have?
Keep in mind that factory-paired 400 engines with 4-speed manual transmissions are the most coveted by collectors. Finally, if you’re looking at a classic 1979 Pontiac Trans Am muscle car and you think the 6.6L means a 400, you’re only partially right.
What makes the 400 cubic inch engine special?
What Makes the 400 Pontiac Special. Pontiac grabbed a 389 block used in the high-performance Catalina, as well as the Lemans and GTO, and punched it out to an even 400 cubic inches. They found that the engine provided massive amounts of low-end torque and rock steady high RPM power output.
When did the Pontiac 400 big block come out?
If it’s their lucky day, they’ll maybe find a Tri-power 389 Trophy motor hiding in the engine bay. But if they’re really lucky, they’ll encounter the 6.6L 400 big block. The Pontiac Motor Division built the 400 from 1967 through 1978.
What kind of oil do you put in a Pontiac?
Additionally, General Motors issues Bulletin # 02-01-39-004B replacing PAG 150 oil with a lower viscocity oil. Thus, TechChoice now indicates PAG 46 (P46D) oil for those vehicles. Excl. STE STE
When did the 400 cubic inch engine come out?
The 400-cubic inch engine was introduced in 1972 in a high-performance and a standard version. This engine was essentially a bored-out version of the 383 engine and was introduced in response to new smog control legislation. By 1978, B-series V-8 engine production halted.
What was the engine size of a 1972 Mopar 400?
1972 400 Engine Specifications The 1972 400 V-8 engine came with a choice of a two-barrel carburetor (standard variant) and a four-barrel carburetor (high performance variant). Both variations had the same engine block, which had a bore and stroke of 4.34 inches by 3.38 inches.
Pontiac 400 V8 Engine. The Pontiac 400 6.6 Liter engine was first introduced in 1967. This version of the Pontiac V8 engine was used in the GTO, Firebird, and the Trans-Am Firebird. The 400 was inspired by the Pontiac 389 V8 and proved to be the last Pontiac engine with closed chambered heads.
What kind of engine does a Pontiac 400-455 have?
Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. The 400-455 is pump gas friendly for the mild daily driver.
A four-barrel carburetor allowed the engine to have more air, and that resulted in more horsepower for speed. Valve angles and diameters were also adjusted according to the way the engine would be used. Higher performance engines had valve intakes at 2.11 inches and exhaust valves at 1.77 inches.
What kind of engine does a DCI Pontiac 400 have?
DCI Pontiac 400 Stroked to 455 Crate Engine Feature Detail Installed Position 106 degrees Lifters Comp Cams hydraulic Valve Springs Comp Cams, dual Seat Pressure 135 lb
Where can I find the firing order for a Pontiac 400?
The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder . What is the firing order on the top of the distributor for a Pontiac V8?
Where is cylinder number 1 on a Pontiac 400?
Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump.
The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder . What is the firing order on the top of the distributor for a Pontiac V8?
Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump.
What was the price of a 1976 Pontiac Trans Am?
By the time the 1976 Pontiac Firebird Trans Am hit the market, Trans Ams had found their niche. Despite ever-higher prices, output rose again as Pontiac sold one Trans Am for every three Firebirds — even starting at $4740 with a standard 185 horsepower 400-cid V-8. A fair number of Americans still seemed to insist on performance.
What was the displacement of the Pontiac 297?
In 1956, the 297 was bored to 317 cid. Pontiac really jumped in the horsepower race with built-for-racing “NASCAR” options carrying dual four-barrel carburetors and delivering up to 285 hp. This was just the beginning. In 1957, the stroke was increased and displacement rose to 347 cid.
What was the horsepower of a 1976 Pontiac Firebird?
At 185 hp, the 400 was still the base motor and relatively unchanged from the 1975 edition. The engine coded WU when ordered with a manual or YS, Y9 or YZ for Federal cars or ZK if California bound when assigned to the automatic,
What kind of engine block do I need for a Pontiac 400?
Original 400 and 455 blocks are the most popular for modern performance builds up to 600 hp or slightly more. When selecting a block for your build, a complete running engine makes a suitable candidate. I found this 1974 400 locally for $250 and confirmed that it retains its original 4.12-ci bore after removing the cylinder heads.
Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. The 400-455 is pump gas friendly for the mild daily driver.
How big is the stroke on a Pontiac 400?
With a 4.12-inch bore and a 3.75-inch stroke, Pontiac’s 400 had similar bore and stroke to Chevy’s big-block 396 (even when the Chevy actually displaced 402 cubic inches).
What kind of engine does a Pontiac Trans Am have?
There was also an Oldsmobile-built 403-cid “alternate” V8 for Pontiacs sold in California. The Pontiac 301 Turbo was produced for the 1980 and 1981 Trans Am. It was a 301-cid V8 that produced a factory rated 210 hp and 345 ft.-lb. of torque in 1980.
How much horsepower does a 1969 Pontiac Grand Prix have?
J 28 68 Oct. 68 428 block XF 1969 Grand Prix 370 HP Takes a #62 or #16 heads for 370 HP or 390 HP For up-front payment total on a remanufactured long block exchange engine, add the 3 figures at the right end of the table rows above.
What kind of engine does a 1979 Pontiac Firebird have?
More Info › Up for sale is a beautiful 1979 Pontiac Trans Am. 4 speed transmission w72, 400 CI V8 engine, Alloy snow flake wheels, Power steering, power brakes, air conditioning, tilt wheel, power windows, AM More Info ›
What was the base price of a 1980 Pontiac Firebird?
The Trans Am suffered particularly hard as total sales dropped 56 percent, despite offering 11 different models (including an Indy Pace Car) with five different engines, including a Turbo V-8. Base prices jumped more than $300 for each model in the spring, while the highest horsepower available was 210 bhp, from the new turbocharged 4.9-liter V-8.
What’s the firing order on a Pontiac Firebird?
IGNITION Like all PONTIAC engines since 1955, the firing order sets is: 1-8-4-3-6-5-7-2, all by turning it counterclockwise. Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump.
Do you need to install a rebuilt Pontiac 400?
Your new rebuilt engine is very heavy and must be handled with care. Any mistake can seriously injure you, your engine, or your vehicle. The excited owner is ready to install his freshly rebuilt 400 into his GTO. The actual installation may vary for different vehicles, and different tools and torque specs may be required.
What do you need to disassemble a Pontiac engine?
It typically includes draining the coolant and oil, and removing the carburetor, fuel lines, wiring, vacuum hoses, distributor cap and coil, accessory brackets and pulleys, and radiator.
What’s the best way to assemble a Pontiac engine?
You can also use residue-free solvents and lint-free cloths to wipe contact surfaces just prior to assembly. You can never be too clean when building any engine! A Fel-Pro number-2806 Gasket Kit contains virtually every gasket required to completely assemble a typical Pontiac engine.
Can you put a Pontiac GTO 400 in a Chevy truck?
NO, the cross members don’t need to be moved and NO it isn;t a hassle. A 70 or newer engine block is the most easy bolt in. Pontiacs bolt right in just like a weak kneed chevy small block. Differance is tha TORQUE for any stock pontiac is far beyond any chevy mouse motor. NO, a 326 can not be bored to a 400.