
Howards Cams 720555-12 BBM Hydraulic Roller Cam
This Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Howards designed this cam for street/mild bracket racing, and it features good low to mid-range performance and a mild lopey idle. A 9.5:1+ compression ratio and a 2400+ stall speed torque converter are highly recommended.
Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft Specs:
- For 383-440 cubic inch Big Block Chrysler engines from 1959-1980
- Basic RPM Range: 2000 to 6200
- Valve Lift Intake: .520
- Valve Lift Exhaust: .530
- Intake Duration: 282
- Exhaust Duration: 288
- Intake Duration at .050”: 229
- Exhaust Duration at .050”: 235
- Lobe Separation: 112
- Intake Centerline: 108
- Requires 3 bolt timing set
- Firing Order: 1-8-4-3-6-5-7-2
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used.
Howards Cams designed this Hydraulic Roller camshaft for high performance on the street and drag strip.
Howards Hydraulic Roller Cams – From mild to wild, they are the ultimate in performance!
Original: $457.99
-65%$457.99
$160.30Howards Cams 720555-12 BBM Hydraulic Roller Cam
This Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Howards designed this cam for street/mild bracket racing, and it features good low to mid-range performance and a mild lopey idle. A 9.5:1+ compression ratio and a 2400+ stall speed torque converter are highly recommended.
Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft Specs:
- For 383-440 cubic inch Big Block Chrysler engines from 1959-1980
- Basic RPM Range: 2000 to 6200
- Valve Lift Intake: .520
- Valve Lift Exhaust: .530
- Intake Duration: 282
- Exhaust Duration: 288
- Intake Duration at .050”: 229
- Exhaust Duration at .050”: 235
- Lobe Separation: 112
- Intake Centerline: 108
- Requires 3 bolt timing set
- Firing Order: 1-8-4-3-6-5-7-2
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used.
Howards Cams designed this Hydraulic Roller camshaft for high performance on the street and drag strip.
Howards Hydraulic Roller Cams – From mild to wild, they are the ultimate in performance!
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Product Information
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Description
This Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Howards designed this cam for street/mild bracket racing, and it features good low to mid-range performance and a mild lopey idle. A 9.5:1+ compression ratio and a 2400+ stall speed torque converter are highly recommended.
Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft Specs:
- For 383-440 cubic inch Big Block Chrysler engines from 1959-1980
- Basic RPM Range: 2000 to 6200
- Valve Lift Intake: .520
- Valve Lift Exhaust: .530
- Intake Duration: 282
- Exhaust Duration: 288
- Intake Duration at .050”: 229
- Exhaust Duration at .050”: 235
- Lobe Separation: 112
- Intake Centerline: 108
- Requires 3 bolt timing set
- Firing Order: 1-8-4-3-6-5-7-2
- Made in the USA
Notes: Stock (O.E.) valve springs can NOT be used.
Howards Cams designed this Hydraulic Roller camshaft for high performance on the street and drag strip.
Howards Hydraulic Roller Cams – From mild to wild, they are the ultimate in performance!











