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Energizer Hydraulic Flat Tappet Camshaft & Lifter Kit 1970-82 Ford/Mercury 351C, 351M, 351 BOSS, 400 Cleveland - 2600-6400 RPM R
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
*Note: Firing Order 1-3-7-2-6-5-4-8
**Note: If your hydraulic lifter preload is excessive, this can be easily remedied by using Crane's rocker arm pedestal shim kit 270-99170-1. Crane offers a pushrod guideplate and rocker arm stud conversion kit 270-52655-16 for street applications, enabling the 351C-351M-400ci engines with pedestal mounted rockers to have adjustable rocker arms without cylinder head removal or maching. To provide the most accurate valve adjustment on hydraulic lifter camshafts, the heads must be machined to accept 270-99159-16 screw-in studs and 270-52650-1 pushrod guideplates. On engines with cylinder heads equipped with exhaust valve rotators, valve springs and retainers must be changed to allow for proper valve travel.
***Note: Many problems can occur if the proper valve spring retainers are not used on 351C-351M and 400ci engines. Ford made a number of production changes in these engines, possibly causing a misapplication of parts. Please refer to the following explanation to insure that the proper components are being used.
- 1970-77 351C-351M-400 engines: Both intake and exhaust valves use multiple groove valve stem locks, with a large outside diameter, requiring the use of 3/8' type valve spring retainers.
- 1978 351M-400 Engines: The intake valves use multiple groove valve stem locks, requiring the use of 3/8' type valve spring retainers. The exhaust valves use standard single-groove valve stem locks, requiring the use of 11/32' valve spring retainers.
- 1979-82 351M-400 Engines: Both intake and exhaust valves use single-groove valve stem locks, requiring the use of 11/32' valve spring retainers.
- 1971-72 BOSS 351 Engines: Both intake and exhaust valves use single-groove valve stem locks, requiring the use of 11/32' valve spring retainers.
FAIR IDLE, MODERATE PERFORMANCE USAGE, GOOD MID-RANGE HP, MILD BRACKET RACING, AUTO TRANS W/2500+ CONVERTER, 3400-3800 CRUISE RPM, 9.5 TO 11.0 COMPRESSION RATIO ADVISED.
| Grind Number: | 284 H12 |
| Operating Range: | 2600-6400 RPM |
| Duration Advertised: | 284° Intake / 284° Exhaust |
| Duration @ .050' Lift: | 228° Intake / 228° Exhaust |
| Valve Lift w/1.73 Rockers: | .554' Intake / .554' Exhaust |
| Lobe Separation Angle: | 112° |
| Max Lift Angle: | 107° ATDC Intake / 117° BTDC Exhaust |
| Open/Close @.050' Cam Lift: | Intake - 7° BTDC (opens) / 41° ABDC (closes) Exhaust - 51° BBDC (opens) / (3°) BTDC (closes) |
- Available alone or with lifters, the Energizer Series of performance hydraulic camshafts offers streetable performance with serious torque, horsepower, and RPM gains at an affordable price. These single-pattern camshafts have profiles with tighter lobe separations for added torque, midrange power, and throttle response. They're great for stock or mildly modified V8 applications (not for computer-controlled engines).
