Is the Chevy 454 LE8 still in use?

The LE8 version still served GM trucks through 1991, although its horsepower rating varied from a low rating of 215 horsepower in 1974 up to about 230 in 1991. The standard transmission matching the LE8 454 on 1973 to 1987 trucks was the four-speed Muncie manual.

What makes the Chevy 454 7.4L engine unique?

The return of the 231 V-6 to General Motors cars in the mid-1970s proved that fuel efficiency could be achieved in compact engines. But in 1988, Chevrolet introduced Throttle Body Fuel Injection to the 454. It was the same TBI system used on small-block V-8s and the V-6s. Fuel efficiency increased and the TBI system remained until 1995.

When did Chevy stop making the 454 engine?

However, tighter government emission standards and safety concerns prompted Chevy to detune the LS 454, which was the most common 454, in 1972 to 270 horsepower. Even by 1980s standards, the 454 was a relic of the past. It was huge and wasteful.

What are the parts of a Chevy 454?

Package contents: Item Description Quantity GM Part Number 1 Short Block Assembly (454) 1 12498778 2 Short Block Instructions 1 19172101 Caution This engine assembly needs to be filled with oil and primed. You should add the specified oil (see start-up instructions) to your new engine.

Which is the best carburetor for a 454 Chevy truck?

Best Carburetor for 454 Chevy Truck – Top 5 Picks of 2020 Best Carburetor for 454 Chevy Truck Score Holley O-80457S Model 4160 600 Carbureto 3.6 A-Team Performance 1902R Carburetor 4.6 A-Team Performance 1903 R Carburetor 3.9 A-Team Performance 1906R Carburetor 4.2

How to get the most horsepower out of a 454 Chevy engine?

A dual-plane manifold that generates more low-end torque works well on the street (or in a tow truck) but will not flow enough air at high RPM to permit larger heads and cams to work well. A single-plane (open “plenum”) manifold design and carburetor that flows 850 CFM or greater will produce more horsepower.

What kind of engine is a 454 BBC?

This has become very commonplace to the point that a 454 BBC is considered a small BBC performance engine. Moss Strohem has a background in business and finance, and an avid interest in youth sports, health, nutrition and physiology.

How big is a 454 cubic inch Chevy?

What’s left, though, is a 454 cubic-inch big-block Chevy with huge potential. To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performance’s dyno room. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test.