How much HP can a 4.8 LS handle?

Run with the Comp 54-454-11 cam and new 26918 springs, the 4.8L responded with peak numbers of 441 hp at 7,000 rpm and 354 lb-ft of torque at 5,400 rpm.

How much horsepower does a 4.8 V8 make?

What Is A 4.8 Vortec Engine? A 4.8L V8 L20 engine falls within the section of V8 engines. This 250k-mile engine is used in full-size Chevy Silverado and Chevy trucks. The Silverado-based engine boasts a horsepower of over 195 while the Vortec can produce up to 295 horsepower on top of a 300-pound torque.

How much HP does a stock 4.8 have?

Equipped with the stock heads, cam, and truck intake, the 4.8L produced 336 hp at 5,900 rpm and 347 lb-ft of torque at 4,900 rpm. Torque production exceeded 300 lb-ft from 3,200 rpm (the start of the test) to 5,800 rpm. Owners of the original 283 small-block will envy this type of torque curve.

Is a 4.8 LS a good motor?

The 4.8L is powerful and delivers exceptional refinement to go with great strength. Quiet features built into the engine are complemented by an improved engine cradle and mounting system. These help reduce vibrations transmitted through the chassis and into the passenger compartment.

How much power will a S475 make?

878 hp
Run with the S475, the 6.0L produced 878 hp and 804 lb-ft of torque at a peak boost pressure of just 11.3 psi (meaning there was more left).

How much does it cost to build an LS engine?

Yep, getting an LS engine in your car is no inexpensive endeavor. For a typical LS crate engine you can easily spend $7,000 and you’ll need to drop another $1,200 for the computer and harness to make it run.

Are 4.8 and 5.3 blocks the same?

It’s difficult to identify the 5.3L and 4.8L because the blocks are the same; the difference is inside. The 4.8L uses an 83mm stroke and the 5.3L’s is 92mm (the same stroke as a 5.7L, 6.0L, and 6.2L).

How much can you bore a 4.8 LS?

4.00-inch
All dimensions in inches unless otherwise noted. Notes: Some rare 4.8L/5.3L iron truck blocks can be bored out to 4.00-inch (see text for details).

Is a 4.8 and 5.3 same block?

What size turbo kit for a stock motor?

What kind of horsepower and torque gains are you getting from the single 70mm and the 76mm turbo kit. Also can this kit be installed on a stock 5.3l without harm to the motor with adding boost.

What kind of Turbo does a GMC 1500 have?

On 3 Performance is proud to announce the release of the 1999 – 2001 & 2007 – 2013 Chevy / GMC 1500 & 2500 4.8, 5.3, 6.0l single turbo system in the coming months. Our turbo system is a bolt on design that has a very clean and simple install.

What kind of Turbo does Summit Racing use?

Boost was supplied by the S475 turbo from Summit Racing. The twin-scroll, T6 turbo featured a 75-mm compressor (inducer) and an 88-mm turbine (exducer). The turbo also featured a 1.32-A/R ratio turbine housing and the ability to support near 1,000 hp on the right application.

What size turbo do I need for my project?

We can’t possibly know what your project/swap is if you order the kit off of the website without reaching out to us first. Generally, a 70/65 or 76/65 turbo will be just fine for a fairly stock 4.8L or a 5.3L motor, but not ok when you step up into a 6.0. The 6.0L and 6.2L motors should have a 78/75 or larger turbo, depending on the build.