Description: This Howards Cams 137651-13 BBC American Muscle W-Series Hydraulic Flat Tappet Camshaft fits 348-409 cubic inch Big Block Chevy engines from 1958-1965. Howards designed this cam for street performance, and it is a near duplicate of the Chevy 340HP/409 cam (GM #3744901). A 9.5:1+ compression ratio, lower rear end gears and a 1500+ stall speed torque converter are highly recommended. Howards Cams 137651-13 BBC American Muscle W-Series Hydraulic Flat Tappet Camshaft Specs: For Big Block Chevy W-Series 348-409 engines from 1958-1965 Basic RPM Range: 800 to 4400 Valve Lift Intake: .401 Valve Lift Exhaust: .411 Intake Duration: 266 Exhaust Duration: 274 Intake Duration at .050”: 190 Exhaust Duration at .050”: 198 Lobe Separation: 113 Intake Centerline: 110 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 Flat Tappet camshaft for high performance on the street. Howards Hydraulic Flat Tappet Cams – From mild to wild, they are the ultimate in performance!
Price: 305.99 USD
Location: Joliet, Illinois
End Time: 2025-01-17T17:36:22.000Z
Shipping Cost: 11.99 USD
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Item Specifics
Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
Brand: Howards Cams
Type: Camshaft
Manufacturer Part Number: 137651-13
Country/Region of Manufacture: United States
Vintage Part: No
Performance Part: Yes
California Prop 65 Warning: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to: www.p65warnings.ca.gov
