What is a LS7 454?

The LS7 454 V8 Engine

Essentially a hybrid of the L88 and LS6 engines, this iron block motor featured a 12.25:1 compression ratio, forged pistons, rods and crankshaft, and a solid lifter camshaft. Combined with a bore of 4.251 inches and a stroke of 4.00 inches, its a serious bit of kit.

What LS engine is the 454?

7.4L V8 LSX 454.

What year did the LS7 454 come out?

Production. Chevrolet designed the LS7 454 beginning in 1970, but it was never placed in any vehicles that were sold to the public.

What is a Chevy LS7 engine?

The LS7 is a Gen. 4, 7.0L, aluminum small block engine. It was available in GM's high performance cars between 2006 and 2015. The LS7 is the largest displacement engine in the LS family. It is unique because it was based on the C5-R Le Mans Corvette racing engine.

Is the LS7 a big block?

With a 4.125-inch bore and 4.0-inch stroke, it remains the largest displacement small-block Chevrolet has ever put in a production car. Lauded at its introduction for its wonderful torque curve and raucous exhaust note, the LS7 was the most powerful V-8 ever offered in a Corvette at the time.

“Dealer Installed LS7 Chevelle ss454s DO NOT EXIST!!” Or do they!?

How much horsepower does a 454 LS7 have?

The LS7 454 in this particular Chevrolet Camaro cranks out 522 horsepower and about 600 lb-ft of torque.

Is the LS7 a 427?

LS7, a living legend

With its classic 427-cubic-inch displacement, the 505-hp LS7 7.0L made its mark in the C6 Corvette Z06 and advanced its legacy in the fifth-generation Camaro Z/28.

How do I know if I have a LS7?

ID stickers with a serial number and barcode may be present on the engine head. Look there for a possible match. If you just do a google search for images of the LS7 motor, you'll find plenty. This isn't a motor that someone is going to fake.

Why was LS7 discontinued?

GM has been slowly phasing out its Gen III LS crate engines since 2019 to make room for crate versions of the newer Gen IV LS and Gen V LT-series small blocks, Muscle Cars & Trucks noted. Chevy also recently discontinued the LT5 crate engine—the most powerful GM production engine—after just one year of availability.

How much is a LSX 454?

Base Price $17,799

The LSx 454 700hp Crate Engine makes max power and torque with a hydraulic cam which is very street able but also gives you the sound you are looking for!!

How much horsepower does a 1970 454 have?

The 1970 versions of the Chevrolet 454 were the most powerful, with the LS5 putting out around 360 horsepower and the LS6 delivering about 450 horses.

Is there an LS big block?

The LS6 454 big-block has been something special in the muscle car world and was considered the top dog of muscle car factory engines for a long time. Until the LS series hit its stride in the 2000s, big block Chevy engines were still the go-to platform for large displacement and high horsepower.

What is the biggest Chevy LS motor?

On its website, Chevrolet Performance says its LSX 454 crate engine (part No. 19355573) is big-block power for the 21st century, and at 627 hp (6,300 rpm) and 586 lb-ft (5,100 rpm) you can believe them.

How much HP does a 454 big block have?

454ci/L29: Rated at 290 hp, The Vortec 7400 is the last generation 454, with the same 4.5x4-inch bore and stroke as before. Like the Gen V, all engines feature four-bolt mains.

What's better LS3 or LS7?

The LS7 is better if you want a high power output, where it gives you 505-horsepower. With improvements, you can achieve more power, around 570-hp. The LS3 is also great in power output, though, at 430-horsepower, it is lower than the LS7. If you want more power, the LS7 is a good option.

What will replace the LS7?

We knew as far back as June 2020 the LS7 would be phased out of production, though back then, it was assumed the 570-hp LS427/570, with its upgraded camshaft and cheaper price, would stand as its replacement for years to come.

Is Vortec and LS the same?

While the performance car engines carried the LS designation, those designed for trucks and SUVs were given the Vortec name. The biggest difference between the Vortec engines and their car cousins was the use of iron blocks (mostly), and the fact that they were often smaller in displacement.

How do you tell what LS block you have?

What LS Engine Do I Have? To figure out what LS engine you're staring at, just consult the RPO code. The easiest way to do this is to find the VIN and reference the 8th digit. The tables below can help you identify the engine.

Is 5.3 and 6.0 the same block?

Flassh, Actually the 6.0 motor is the same small block that the 5.3 utilizes. The 5.3 is 327 cu. in. and the 6.0 is the same block bored to a 366 cu.

What liter is a 454?

For many years the 454 (7.4-liter) V8 was the top choice from GM, while Ford had the mighty 460 (7.5-liter) V8.

Is 392 Hemi a big block?

The 392 is a small block.

How much HP can a LS7 handle?

You're safe for up to 1,000 horsepower on the factory LS7 block, and a naturally-aspirated build is unlikely to challenge those limits. If you want to add some insurance on your way up to that limit, however, you'd do well to invest in forged pistons once you've crested 700 horsepower.