Drag racers take note! Chevrolet Performance's new LSX454R crate engine delivers 776 horsepower that will help you stay in front of the competition. More than the most powerful LS engine in our portfolio, it is the most powerful crate engine we’ve ever offered!
Our engineers designed the LSX454R for the unique, high-rpm demands of drag racing. It is a high-compression, solid-roller combination that uses our new LSX DR cylinder heads. These 11-degree, six-bolt aluminum heads feature raised ports that provide tremendous airflow. We complement them with an exclusive, high-rise open-plenum intake manifold and a Dominator-type carburetor to complete the assembly.
The LSX454R’s bottom end includes our LSX Bowtie cylinder block and an all-forged rotating assembly. And while we rate the engine at 776 horsepower in its naturally aspirated form, we know that there is room for more.
Use the LSX454R as the centerpiece of a new racecar built with our GEN V Camaro body-in-white for the ultimate modern drag-strip star. With 776 horsepower under the hood, it will perform as good as it looks!
LS-Series Small-Block V-8
Displacement (cu. in.):
Bore x Stroke (in.):
4.185 x 4.125 (106.3 x 104.8 mm)
Block (P/N 19244057):
LSX cast iron with six-bolt cylinder head attachment
Crankshaft (P/N 19244018):
4340 forged steel
Connecting Rods (P/N 19166964):
4340 forged steel
Pistons (P/N 19166958):
4032 forged aluminum
Camshaft Type (P/N 19166975):
Camshaft Lift (in.):
.738 intake / .738 exhaust
Camshaft Duration (@.050 in.):
250° intake / 270° exhaust
Cylinder Heads (P/N 19166979)
Drag race cylinder heads six-bolt LSX aluminum
Valve size (in.)
2.250 x 6.370 intake / 1.625 x 6.400 exhaust
Rocker Arms (P/N 19201808)
Shaft mounted with needle bearing fulcrum and tip
Rocker Arm Ratio
Race fuel (110 octane minimum)
Already own one, but lost some of the paperwork? We’ve got you covered with downloads and links for some of the more important documents below. You’ll find everything from the vital data about your engine’s capabilities, how to install it into your build, even all of the warranty information should you need to make a claim. And don’t forget, the best way we can make sure to get you the latest information on your specific part is to tell us which one you have by registering your engine. No matter what stage of your build you’re in — from shopping for the right part to that part having turned in a few miles — we have the information you need.
* The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.
***The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Includes destination freight charge and gas guzzler tax.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.
To allow you to do an accurate price comparison with prices featured on other Internet sites, GM provides Internet pricing both with and without the Destination Freight Charge (see prices including Destination Freight Charge below). To get full pricing details, go to our Build Your Own section.