COMP Cams Camshaft FS 291Th R7 Thumper R
COMP Cams Camshaft FS 291Th R7 Thumper R
A$1,168.95
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Description
Mutha' Thumpr 235/249 Hydraulic Roller Cam
Product Overview
*Thumpr Camshafts*
* Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods
* Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
* Best with aftermarket converters and more rear gear
Product Details
| Advertised Exhaust Duration: | 311 |
|---|---|
| Advertised Intake Duration: | 291 |
| Amazon ASIN: | B0046ZEAKQ |
| Assembly Lubricant Included: | No |
| Basic Operating RPM Range: | 2,200-5,900 |
| 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 |
| California Proposition 65: | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Cam Type: | Hydraulic Roller |
| Cam and Lifter Kit Upgrade: | CL31-601-8 |
| Camshaft Gear Attachment: | 1-Bolt |
| Camshaft Material: | Austempered Ductile Iron |
| Camshaft Series: | Thumpr |
| Description: | Mutha' Thumpr 235/249 Hydraulic Roller Cam for Ford 221-302 |
| Engine Family: | Ford 221, 260, 289, 302 c.i. 8 Cylinder (1963-1995) |
| Exhaust Duration @ .050 in.: | 249 |
| Exhaust Duration at .050 inch Lift: | 249 |
| Exhaust Duration: | 311 |
| Exhaust Valve Lift(in): | 0.526 |
| Exhaust Valve Lift: | 0.526 |
| Grind Number: | 291THR7 |
| Intake Duration @ .050 in.: | 235 |
| Intake Duration at .050 Inch Lift: | 235 |
| Intake Duration: | 291 |
| Intake Valve Lift(in): | 0.540 |
| Intake Valve Lift: | 0.54 |
| K-Kit Upgrade: | K31-601-8 |
| Lifter Type: | Hydraulic Roller |
| Lifters Included: | No |
| Lobe Separation: | 107 |
| Part Number: | cca31-601-8 |
| RPM Range: | 2200-7000 |
| Title: | Mutha' Thumpr 235/249 Hydraulic Roller Cam for Ford 221-302 |
| Usage: | Street/Strip |
| Valve Springs Required: | Yes |
Application Summary
Fits Ford 221, 255, 260, 289 and 302 Small Block
Part Type
Engine Camshaft
Specifications
- Product Attributes - Brand
- COMP Cams
- Product Attributes - Manufacturer's Part Number
- 31-601-8
- Product Attributes - Part Type
- Camshafts
- Product Attributes - Product Line
- COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts
- Product Attributes - UPC
- 036584212058
- Product Attributes - Cam Style
- Hydraulic roller, Retro-fit
- Product Attributes - Camshaft Use
- Street/Strip
- Product Attributes - Basic Operating RPM Range
- 2,200-5,900
- Product Attributes - Intake Duration at 050 inch Lift
- 235
- Product Attributes - Exhaust Duration at 050 inch Lift
- 249
- Product Attributes - Duration at 050 inch Lift
- 235 int./249 exh.
- Product Attributes - Advertised Intake Duration
- 291
- Product Attributes - Advertised Exhaust Duration
- 311
- Product Attributes - Advertised Duration
- 291 int./311 exh.
- Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
- 0.540 in.
- Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
- 0.526 in.
- Product Attributes - Valve Lift with Factory Rocker Arm Ratio
- 0.540 int./0.526 exh.
- Product Attributes - Lobe Separation (degrees)
- 107
- Product Attributes - Remanufactured
- No
- Product Attributes - Computer-Controlled Compatible
- No
- Product Attributes - Grind Number
- 291THR7
- Product Attributes - Valve Springs Required
- Yes
- Product Attributes - Quantity
- Sold individually.
- Product Attributes - Notes
- Designed for pre-roller block applications. Not design for stock EFI applications.
Reference Information
| Brand Name/s | Comp Cams |
|---|---|
| StreetFX SKU | cca31-601-8 |
| SFX Item ID | 4119698 |
| Supplier Item Code | 4119698 |
| Manufacturer SKU | 31-601-8 |
| Manufacturer UPC | 36584212058 |
| Alternative References | gt-350;, f-150;, 291Th |
Brochures
Compatibility
Fits Ford 221, 255, 260, 289 and 302 Small Block
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