Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam GK-Kit for Ford 351W. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears, and headers, very rough idle.
Application Summary:
| Year |
Make/Model |
| Fits |
Ford Small Block Engines originally equipped with Old firing order and 351 Windsor engines with the Windsor firing order |
| Attributes |
| Advertised Exhaust Duration |
313, 313 |
| Advertised Intake Duration |
295, 295 |
| Amazon ASIN |
B002EE566I |
| ASIN |
B002EE566I |
| Basic Operating RPM Range |
2,500-6,400, 2,500-6,400 |
| C.A.R.B. E.O. Number |
N/A |
| 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 - www.P65Warnings.ca.gov |
| Cam Type |
Hydraulic Flat Tappet, Hydraulic Flat Tappet |
| Camshaft Series |
Thumpr, Thumpr |
| Country of Origin (Primary) |
US |
| Emission Code |
Not in CA |
| Engine Family |
Ford 351W 8 Cylinder (1969-1996), Ford 351W 8 Cylinder (1969-1996) |
| Engine Make/Size |
Ford 351W |
| Exh. Duration @ .050 in. (Deg) |
257 |
| Exh. Duration Advertised (Deg) |
313 |
| Exhaust Duration at .050 inch Lift |
257, 257 |
| Exhaust Valve Lift |
0.498, 0.498 |
| Exhaust Valve Lift (in.) |
0.512 |
| Gaskets Included |
No, No |
| Harmonized Tariff Code (Schedule B) |
8409914000 |
| Hazardous Material Code |
Y |
| Int. Duration @ .050 in. (Deg) |
243 |
| Int. Duration Advertised (Deg) |
295 |
| Intake Duration at .050 Inch Lift |
243, 243 |
| Intake Valve Lift |
0.512, 0.512 |
| Intake Valve Lift (in.) |
0.498 |
| Kit Type |
GK-Kit - Cam and Gear Kit, GK-Kit - Cam and Gear Kit |
| Life Cycle Status Code |
Available to Order |
| Lifter Style |
Hydraulic Flat Tappet |
| Lifter Type |
Hydraulic Flat Tappet, Hydraulic Flat Tappet |
| Lifters Included |
Yes, Yes |
| Locks Included |
No, No |
| NAFTA Preference Criterion Code |
B |
| Pushrods Included |
No, No |
| Retainers Included |
No, No |
| RPM Range |
2500-6400 |
| SDR Required Flag |
Y |
| SDS Sheet Number |
COMP4-107 |
| Timing Chain and Gears Included |
Yes, Yes |
| Usage |
Street/Strip, Street/Strip |
| Valve Stem Seals Included |
No, No |
| Warranty Time |
12 |
| GTIN |
00036584183297 |
