Edelbrock 352-428 - Manual (Page 2)

• VALVESPRINGS CAUTION:
WARNINGS ABOUT YOUR WARRANTY
In order for this Performer RPM cam and lifter kit to be
covered under ANY WARRANTY you MUST use the correct
Edelbrock Sure Seat Valve Springs. Failure to install new
Edelbrock valve springs with your new Performer RPM cam
could cause the cam lobes to wear excessively and could
cause additional engine damage.
1. This camshaft is designed to function with Edelbrock Sure
Seat valve springs #5706 (single with dampener). Do not use
dual valve springs with this camshaft.
2. Check and set spring height to factory specifications for your
year and model. If using Edelbrock #5706, set to 1.820".
NOTE: Due to the various settings through the years, we
advise checking Mitchell, Motors, Chilton, or Ford service
manuals for correct spring height setting for your vehicle.
3. For non-rotator engines, you may want to install Edelbrock
Valve Spring Retainer Kit #9720.
• LIFTERS
1. New lifters must be used with new camshaft. Use only the
lifters supplied with this kit.
WARNING: Do not “pump-up” the lifters or pre-soak
them in oil. This will defeat the self-adjusting mechanism
of the lifter, and may result in bent or broken pushrods,
valves, etc. upon initial engine start-up. If lifter
pre-lubrication is desired, use an engine pre-lubing device
after engine assembly.
2. Check to be sure that all lifters fit freely in the lifter bores. It
may be necessary to use a brake wheel cylinder hone on lifter
bores to ensure proper fit.
• INSTALLATION INSTRUCTIONS
1. Coat cam lobes and bottoms of each lifter with MoS2 lube
(supplied) to prevent cam lobe and lifter wear from occurring
during initial start-up.
2. Install new camshaft with new sprockets, timing chain and
lifters.
NOTE: Drive pin in front of cam should be pressed into the
timing gear from the rear of the gear (camshaft side) until the
pin protrudes from the front of the gear by .060". This will
allow the pin to engage a drive hole in the one-piece fuel
pump eccentric. A replacement fuel pump eccentric can be
ordered from your Ford dealer if necessary - order part
number C3AZ-6287-A.
CAUTION: Use Edelbrock Performer RPM True-Rolling
Timing Chain and Gear Set #7808. Do not use late model
timing chain & gear sets that are designed in a retarded
position and are not recommended for this camshaft
installation. Edelbrock Timing Sets feature three keyways for
specific timing selection. Use "0" timing marks for most
applications. Use locking compound material on the bolt
threads holding timing gear to cam. Torque to factory
recommendations specified in motor repair manual (40-45
ft./lbs.). Install camshaft with timing marks lined up as
recommended by factory specifications. See Figure 1.
When using Performer RPM Timing Chain and Gear Sets
(7800 series) with Edelbrock cam and lifter kits, straight up
timing alignment is achieved. If any other timing gear set is
used, it is necessary to check cam position for correct timing
alignment. This requires indexing the camshaft with a degree
wheel to verify timing alignment. O.E.M. or non-Edelbrock
timing gear sets are not recommended for use with Edelbrock
camshafts.
page 2
• INSTALLING PUSHRODS AND ROCKER ARMS
After the cam is installed and timed correctly (see Figure 1), it
will be necessary to check each pushrod for correct lifter
pre-load.
• VALVE ADJUSTMENT
1. Install intake manifold using new intake gasket set and torque
manifold bolts to 25 ft./lbs.
2. Turn the engine over until the No. 1 cylinder exhaust lifter
starts to move up. At this point install pushrod and intake
rocker arm, rocker shaft, and rocker shaft bolts. Adjust to zero
clearance between rocker arm and valve tip. Continue
tightening the adjusting nut one-half (1/2) turn.
3. Turn the engine over again until the intake lifter just stops
coming down. At this point install pushrod and adjusting nut
on exhaust rocker arm and repeat the same procedure as
above.
4. The above procedure assures correct hydraulic lifter pre-load.
Repeat this procedure for each of the other seven
cylinders.Torque rocker shaft bolts to 40-45 ft./lbs.
5. Re-install front cover, fuel pump, water pump, and oil pan
using new gaskets.
6. Install crankshaft dampener and torque to factory
specification.
• INSTALLING DISTRIBUTOR AND TIMING ENGINE
NOTE: Before installing your distributor, check the gear drive
on the distributor and oil pump for any signs of wear. If worn,
be sure to replace with new or you may wear out your
camshaft prematurely. This is especially true when rebuilding
your engine and a high performance oil system is used, which
generates a heavier load on the camshaft gear system.
Edelbrock camshafts are designed to use OEM-type gears and
oil pumps only.
1. Turn the engine over in the direction of rotation until the No.
1 intake valve closes and continue until the pointer on the
front cover is approximately 5 degrees BTDC.
2. Re-install the distributor with the rotor pointing towards No. 1
terminal in the cap, and with the vacuum advance canister in
its original position.
3. Lightly tighten the hold-down clamp so that the distributor
can still be turned to determine final setting using a timing
light with the engine running.
4. Replace valve covers, carburetor linkage and remaining
vacuum and electrical connections.
5. Re-install air conditioner, if so equipped.
6. Re-install radiator, fan shroud, and belts (if removed), fill
radiator with coolant and re-connect battery.
7. Double check all connections, fuel lines, etc. before starting
engine.
• CAMSHAFT/LIFTER RUN-IN
CAUTION: Change the engine oil and filter before start-up
and again after break-in. Do not allow the engine to run
under 2000 rpm for the first 1/2 hour. Vary engine speed
between 2000 and 2500 rpm. Slow idle speeds will result in
severe cam and lifter wear.
1. Start the engine and bring to break-in rpm.