Big Mutha' Thumpr 243/257 Hydraulic Flat Cam For Ford 351W

Big Mutha' Thumpr 243/257 Hydraulic Flat Cam for Ford 351W. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears and headers, very rough idle. Vehicle Specific

• Fits Ford Small Block Engines originally equipped with "Old" firing order and 351 Windsor engines with the "Windsor" firing order

Attributes:

• Brand Name: COMP Cams
• GTIN: 00036584176404
• Advertised Exhaust Duration: 313
• Advertised Intake Duration: 295
• Amazon ASIN: B002EDXEO0
• Assembly Lubricant Included: Yes
• Basic Operating RPM Range: 2,500-6,400
• C.A.R.B. E.O. Number: N/A
• C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
• C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
• C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
• C.A.R.B. Exempt for On-Road Vehicles?: No
• C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
• C.A.R.B. Exemption Reason: N/A
• Cam Lifter and Gear Drive Upgrade: GK35-602-4
• Cam Type: Hydraulic Flat Tappet
• Cam and Lifter Kit Upgrade: CL35-602-4
• Camshaft Gear Attachment: 1-Bolt
• Camshaft Material: Cast Iron
• Camshaft Series: Thumpr
• Engine Family: Ford 351W 8 Cylinder (1969-1996)
• Exhaust Duration at .050 inch Lift: 257
• Exhaust Valve Lift: 0.498
• Grind Number: 295TH7
• Intake Duration at .050 Inch Lift: 243
• Intake Valve Lift: 0.512
• K-Kit Upgrade: K35-602-4
• Lifter Type: Hydraulic Flat Tappet
• Lifters Included: No
• Lobe Separation: 107
• Usage: Street/Strip
• Valve Springs Required: Yes

Extended Information:

• Country of Origin: US
• Emissions : EPA Eligible

Packing Information:

• Quantity of Each: 1
• Package UOM: EA
• Dimension: 23.3 x 2.91 x 2.59 inches
• Weight: 9.6 POUNDS