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Howards Cams, Big Mama Rattler Retro-Fit Hydraulic Roller Camshaft, Ford 429-460 |
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Howards Cams Rattler™ Retro-Fit Hydraulic Roller Camshaft
Rattlers cams are for street enthusiasts who want the classic exhaust sound, but also want true performance to go with it. These camshafts offer performance that just doesn’t thump around. They give you a the performance and throttle response you expect from a performance cam. Don’t let the others fool you, sound is not everything. If you want both sound and performance, you need a Howards Cams Rattler™. The best of both worlds. Note: To get the best exhaust tone, you should use a good dual exhaust system without a cross-over. A cross-over will add minor performance, but mellow the exhaust tone.
Part Type: Camshaft
Cam Series: Rattler™
Application: Ford Big Block 429-460 1968-95
Ignition Firing Order: (1-5-4-2-6-3-7-8)
Cam Style: Retro-Fit Hydraulic Roller Camshaft
Basic RPM Range: 2000-5400
Manufacturers Description: Big Mama Rattler™, Lopey idle, street or street/strip, needs 9.0:1 compression, 2500+ stall.
Intake Duration @ .050": 235
Exhaust Duration @ .050": 243
Advertised Intake Duration (@ .050"): 288
Advertised Exhaust Duration (@ .050"): 296
Intake Valve Lift with OE Rocker Ratio (1.73): .611”
Exhaust Valve Lift with OE Rocker Ratio (1.73): .611”
Intake Lobe Lift: .353”
Exhaust Lobe Lift: .353”
Intake Valve Lift with 1.70 Rocker Ratio: .600”
Intake Valve Lift with 1.75 Rocker Ratio: .618”
Intake Valve Lift with 1.80 Rocker Ratio: .636”
Exhaust Valve Lift with 1.70 Rocker Ratio: .600”
Exhaust Valve Lift with 1.75 Rocker Ratio: .618”
Exhaust Valve Lift with 1.80 Rocker Ratio: .636”
Lobe Separation Angle: 109 Degrees
Intake Centerline: 103 Degrees
Small Base Circle: No
Lifters Included: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus ˝ Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 248045-09
Weight: 14.0 lbs.
Warranty: Race Application, No warranty expressed or implied.
Quantity: Sold as Each
Note: Stock (O.E.) valve springs cannot be used.
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