Comp Cams 54-457-11 GM LS Gen III/IV LSr Hydraulic Roller Camshaft 273Lr HR12
This Comp Cams 54-457-11 LSR Hydraulic Roller Camshaft fits the Gen III/IV LS engines from 1997 through Present. Comp designed this cam specifically for max torque on the street/strip in 4.8L - 5.7L engines with Cathedral Port Cylinder Heads, and it features steady power throughout and broad range. Needs aftermarket airflow improvements on inlet and exhaust. A 10.0:1+ compression ratio and a 2100+ stall speed torque converter are highly recommended.
Comp Cams 54-457-11 Gen III/IV LSR Hydraulic Roller Camshaft Specs:
- For Gen III/IV LS engines from 1997 through Present
- For use with Cathedral Port Cylinder Heads
- 3-Bolt Camshaft Gear Attachment
- Basic RPM Range: 1700 to 6800
- Valve Lift Intake: .610
- Valve Lift Exhaust: .617
- Intake Duration: 273
- Exhaust Duration: 281
- Intake Duration at .050”: 223
- Exhaust Duration at .050”: 231
- Lobe Separation: 112
- Firing Order: 1-8-7-2-6-5-4-3
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used. Requires custom programmer/tuning.
Comp Cams designed this hydraulic roller camshaft for high performance on the street and at the drag strip.
Comp Cams - The Absolute Leader In Valve Train Technology!
Original: $541.95
-65%$541.95
$189.68Comp Cams 54-457-11 GM LS Gen III/IV LSr Hydraulic Roller Camshaft 273Lr HR12
This Comp Cams 54-457-11 LSR Hydraulic Roller Camshaft fits the Gen III/IV LS engines from 1997 through Present. Comp designed this cam specifically for max torque on the street/strip in 4.8L - 5.7L engines with Cathedral Port Cylinder Heads, and it features steady power throughout and broad range. Needs aftermarket airflow improvements on inlet and exhaust. A 10.0:1+ compression ratio and a 2100+ stall speed torque converter are highly recommended.
Comp Cams 54-457-11 Gen III/IV LSR Hydraulic Roller Camshaft Specs:
- For Gen III/IV LS engines from 1997 through Present
- For use with Cathedral Port Cylinder Heads
- 3-Bolt Camshaft Gear Attachment
- Basic RPM Range: 1700 to 6800
- Valve Lift Intake: .610
- Valve Lift Exhaust: .617
- Intake Duration: 273
- Exhaust Duration: 281
- Intake Duration at .050”: 223
- Exhaust Duration at .050”: 231
- Lobe Separation: 112
- Firing Order: 1-8-7-2-6-5-4-3
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used. Requires custom programmer/tuning.
Comp Cams designed this hydraulic roller camshaft for high performance on the street and at the drag strip.
Comp Cams - The Absolute Leader In Valve Train Technology!
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Description
This Comp Cams 54-457-11 LSR Hydraulic Roller Camshaft fits the Gen III/IV LS engines from 1997 through Present. Comp designed this cam specifically for max torque on the street/strip in 4.8L - 5.7L engines with Cathedral Port Cylinder Heads, and it features steady power throughout and broad range. Needs aftermarket airflow improvements on inlet and exhaust. A 10.0:1+ compression ratio and a 2100+ stall speed torque converter are highly recommended.
Comp Cams 54-457-11 Gen III/IV LSR Hydraulic Roller Camshaft Specs:
- For Gen III/IV LS engines from 1997 through Present
- For use with Cathedral Port Cylinder Heads
- 3-Bolt Camshaft Gear Attachment
- Basic RPM Range: 1700 to 6800
- Valve Lift Intake: .610
- Valve Lift Exhaust: .617
- Intake Duration: 273
- Exhaust Duration: 281
- Intake Duration at .050”: 223
- Exhaust Duration at .050”: 231
- Lobe Separation: 112
- Firing Order: 1-8-7-2-6-5-4-3
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used. Requires custom programmer/tuning.
Comp Cams designed this hydraulic roller camshaft for high performance on the street and at the drag strip.
Comp Cams - The Absolute Leader In Valve Train Technology!
