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MSRP

$24,037

Part No.

19260835

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For Off-Road &

For Off-Road &
STREET

3 Select
Available Mods

Power

Power
770
hp @7000 rpm

Quite simply the most powerful crate engine ever from Chevrolet Performance

Drag racers take note! Chevrolet Performance's new LSX454R crate engine delivers 770 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 770+ 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 770+ horses under the hood, it will perform as good as it looks!

LSX454R DYNO

Click on the slider to see the torque and power ratings change with rpm.*

*Approximate values shown.

LSX454R TECH SPECS

Part Number:
19260835
 
 
Engine Type:
LS-Series Small-Block V-8
Displacement (cu. in.):
454 (7.4L)
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):
Mechanical roller
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
Compression Ratio
13.1:1
Rocker Arms (P/N 19201808)
Shaft mounted with needle bearing fulcrum and tip
Rocker Arm Ratio
1.9:1
Recommended Fuel
Race fuel (110 octane minimum)
Maximum rpm
7100
Reluctor Wheel
58X
Balanced
Internal

OWNER RESOURCES

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.

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  • INSTALLATION NOTES

    • Intended for off-road use only
    • Requires race fuel (110 octane minimum)
    • Not intended for marine use
    • Requires LSX Ignition Controller (P/N 19171130)
    • Oil pan not included (Dust shield installed for shipment)
    • LSX eight-bolt crank flange
    • Uses 4500-series carburetor (included)

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FINISH OFF YOUR CRATE ENGINE WITH THESE SELECT PARTS

Download a catalog for a full listing of components and related parts.

Muscle Car Oil Pan Kit • P/N 19212593

LSX Ignition Controller • P/N 19171130

LS-Series Starter • P/N 10465385

  • 1 Performance MSRP The Manufacturer's Suggested Retail Price excludes tax, shipping and installation.