One had a two-barrel carburetor. "Since this is a giveaway engine, we wanted it to produce enough manifold vacuum to run power brakes. Mike says, "Most people think that the 383 block is too small and it isn't a good platform for a stroker motor. The compression ratio of both variations was 8.2-to-1 and the normal oil pressure was between 45 and 65 psi. This series included with 350, 361 and 383 cubic inch displacements. "The similarity to a stroked big-block Chevy isn't coincidental—insofar that it's all about bore and stroke dimensions. We were still budget-conscious with this engine and elected to retain the stock 383's valvetrain. The two-barrel carburetor standard variant produced the same horsepower as the 1973 version, 185 HP, but at a higher speed, 4,000 rpm. The standard variant produced the same torque, 310 ft-lbs at 2,400 rpm, buy horsepower was down to 185 hp at 3,600 rpm. Like the scrappy little kid that defies the odds to make the Varsity team, this is one B-series motor that punches far above its weight.

One of the four-barrel carburetor variants in 1974 produced 310 ft-lbs at 2,400 rpm and 205 HP at 4,400 rpm. Please … Both variations had the same engine block, which had a bore and stroke of 4.34 inches by 3.38 inches. "With all the aftermarket rotating assemblies and cylinder heads that are available these days, making power is the easy part. We have stock stroke and several different BBM stroker crank lengths available for these high performance V8 muscle car engines. Although Muscle Motors typically employs a slightly larger 241/246-at-.050 grind, they intentionally kept things on the conservative side.

The port cross-section we ended up with isn't that much larger, but by opening up the throat and putting a good valve job on them, we were able to increase airflow quite a bit.

This series included with 350, 361 and 383 cubic inch displacements. The 400-cubic inch engine was introduced in 1972 in a high-performance and a standard version. Even more impressive is how evenly all that savory torque is distributed throughout the powerband.

No differences were seen in compression ratios, bore-and-stroke measurements or normal engine oil ranges from previous years.

This engine was essentially a bored-out version of the 383 engine and was introduced in response to new smog control legislation. Since no one ever complained that they couldn't get enough cubic inches out of a big-block Chevy, perhaps the 383 Chrysler's perceived shortcomings are exaggerated. The standard variant two-barrel version produced 310 foot-pounds of torque at 2,400 rpm and 190 horsepower at 4,400 rpm. With variable valve timing, dual overhead cams, cylinder deactivation, amazing fuel efficiency, and as much as 305 hp in Challenger trim, this little powerplant ought to elicit "oohs" and "aahs" from motorheads of all stripes. It definitely has a red-headed stepchild reputation, but you can build them up to 450 ci very easily, and a 4.250-inch stroke puts them right at 496 ci.

Big Block Chrysler Crankshaft | Dodge Plymouth Mopar 383 400 413 426W 426 Hemi 440 Crankshaft Catalog We have a large assortment of big block Mopar crankshaft models to choose from.

The 400-cubic inch engine was introduced in 1972 in a high-performance and a standard version. To submit your questions or ideas, or to simply learn more about It Still Works,

"Any time you increase airflow you make more power," Mike says. There were two versions with a four-barrel carburetor, but they were tuned differently.

Unlike some competitive brands of engines, the big-block Mopar hydraulic shaft-mount system is rugged. You can pick up a 383 block for a couple of hundred bucks all day long. The horsepower rating for the high-performance engine, though, increased to 260 HP at 4,800 rpm in 1973.The last year of production for the 400 V-8 engine was 1974, and there were three variants for this year. Recognition for the little V-6 usually runs along the lines of "Penta-Not much was different back in the 1960s within Chrysler's "B/RB" series of big-block engines.

After analyzing the options, Muscle Motors determined that the popular 440 Source Stealth cylinder heads provided the ideal combination of airflow and port cross-section to help reach its horsepower and torque objectives.

To put things into perspective, 454 Chevys came equipped with 9.800-inch decks and 4.250-inch bores.

Nope. Already kicking out an astounding 605 lb-ft at just 3,400 rpm, this is the kind of torque that doesn't just destroy tires, it also allows lugging heavy cars down the road with relatively tall gears, if you so desire.After procuring a 383 block, it was bored to 4.280 inches, honed, decked, and align-honed.

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