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30 Αυγ 2022 · The 426 Hemi has 426 cubic inches, a 4.25″ bore and 3.75″ stroke, 425 horsepower @ 5,000 RPM and 490 ft. lbs. of torque @ 4,000 RPM. It has a compression ratio of 10.25:1, 2X4 bbl carburetors, 2.25″ intake valves and 1.94″ exhaust valves. The Hemi’s cam has a lift of .484 intake and .475 exhaust.
The 426 Hemi, referred to as the “street” Hemi in cars from 1966 onward, started with the same power as the engine would carry for its 6-year lifetime – 425 horsepower. The engine was underrated and most likely produced in the neighborhood of 485 or so horsepower – right from the factory.
4 Μαΐ 2023 · 426 Hemi Engine Specs. Specs for the 1964 -1971 big block 426 Mopar Hemi engine are as follows: Engine: Mopar 426 7.0L Hemi. Displacement: 426 cid (7.0L) Block/Heads: Cast Iron / Aluminum. Configuration: Naturally Aspirated V8 w/ OHV Hemispherical combustion chambers. Bore x Stroke: 4.25″ x 3.75″.
14 Απρ 2023 · Below are the street and race 426 Hemi engine specifications, including displacement, block/heads, configuration, bore x stroke, compression ratio, firing order, engine weight, horsepower, and torque.
Engine Specifications. 1966-1971 Street 426 HEMI with 4 Barrel Carb. Max Brake Horsepower: 425 @ 5000 rpm. Max Torque: 490 @ 4000 rpm. Stroke: 3.75. Bore: 4.25. Compression: 10.25. Firing Order: 18436572. Information and specs for the 426 HEMI V8 engine made by Chrysler. The first year for the 426 HEMI was 1964.
2 Απρ 2023 · The 426 street Hemi in 1966 and 1967 had a cam duration of 276 degrees with a lift of .467″ intake and .473″ exhaust. From 1968 to 1971 the duration increased to 284 degrees and a lift of .490″ intake and .481″ exhaust. This article will also include the race Hemi cam specs for both track and drag.
Massive intake manifold was tuned for specific power ranges; this particular 390-horsepower “wedge-head” engine was used in the Chrysler 300J just before the 426 Hemi hit the track. The Hemi still dominated the top drag racing classes more than twenty-five years later.
