19260835 LSX454R

Part Number: 19260835

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Part Number: 19260835
Engine Type: LS-Series Small-Block V-8
Displacement (cu in): 454 cu in (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 6-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
6-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: 7,100
Reluctor Wheel: 58X
Balanced: Internal

Select the parts below to finish your crate engine and get running in less time!

19212593 Muscle Car Oil Pan Kit

19171130 LSX Ignition Controller

10465385 LS-Series Starter


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 8-bolt crank flange
• Uses 4500-series carburetor (included)

• LSX Cast-Iron Cylinder Block with 6-Bolt,
Cross-Bolted Mains
• 4340 Forged Steel Crankshaft
• 4340 Forged Steel Rods
• 4032 Forged Aluminum Pistons
• Mechanical Roller Camshaft with .738"/.738" Lift
• Cam Duration at .050": 250° Intake/270° Exhaust
• LSX-DR Aluminum Cylinder Heads with 50cc
Combustion Chambers – 13.1:1 Compression Ratio
• Assembly includes 4500-Series Carburetor
• 6-Bolt Head Design
• 770 hp/612 lb.-ft. Torque
• The “R” is for “RACE”! (not recommeded for street