Description
This Howards Cams 197715-13 American Muscle Hydraulic Roller Camshaft fits the Gen III/IV LS engines from 1997 through Present. Howards designed this cam for street/strip use and it is the same as #197712-10 with wider separation for easier tunability & smoother power band. A 9.5:1+ compression ratio and a 2300+ stall speed torque converter are highly recommended.
Howards Cams 197715-13 Gen III/IV LS American Muscle Hydraulic Roller Camshaft Specs:
- For Gen III/IV LS1 engines from 1997 through Present
- Basic RPM Range: 1900 to 7300
- Requires custom programmer/tuning
- Advanced lobe design for increased performance
- Valve Lift Intake: .525
- Valve Lift Exhaust: .525
- Intake Duration: 274
- Exhaust Duration: 285
- Intake Duration at .050”: 226
- Exhaust Duration at .050”: 236
- Lobe Separation: 113
- Intake Centerline: 109
- Recommended Lifter Set: 91013 Performance
- Recommended Premium Lifter Set: 91166 Retro-Fit Street
- Recommended Valve Springs: 98113
- Recommended Valve Spring, Retainer and Lock Kit: 98113-K1
- Firing Order: 1-8-7-2-6-5-4-3
- Made in the USA
Howards Cams designed this hydraulic roller camshaft for high performance on the street and at the drag strip.
Howards Roller Cams – From mild to wild, they are the ultimate in performance!
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