Edelbrock 2103 User Manual
PERFORMER-PLUS
CAMSHAFT / LIFTERS / LUBE KIT
CATALOG # 2103
MODEL: 400 c.i.d. Chevrolet V8 engines
GENERAL INSTRUCTIONS
• Please study these instructions carefully before you remove your stock camshaft. If you have any questions or problems, do not hesitate to contact
our Technical Hotline at: 1-800-416-8628.
• These instructions are designed to give general installation guidelines. A complete step-by-step procedure manual would require many pages. If you
are a novice or just learning to work on automotive engines, we recommend consulting either Chilton or Motors automotive manuals before you
begin. You may also wish to contact an experienced mechanic. Be advised: improper installation may result in LOW MILEAGE, POOR PERFORMANCE,
COSTLY REINSTALLATION AND EVEN ENGINE DAMAGE. Installing a camshaft is a complex procedure. Please follow these instructions carefully.
Failure to do so may void your warranty.
• Before you begin the removal and installation process, please examine the kit for possible shipping damage. If the camshaft is damaged, contact
your dealer immediately. Also, make sure you have all the recommended tools and parts as listed below. As you read through these instructions the
first time, use the preparation checklist to check off the exact items you will need.
•
Performer-Plus
camshafts are ground specifically for use with the corresponding
Performer
manifold #2101 or #3701. Both are dyno-matched and
street proven to work as a team; especially when matched with Edelbrock Tubular Exhaust Systems. However, the Performer camshaft may be used
by itself. Edelbrock Performer-Plus cam #2103 is street legal in all 50 states - E.O.#D-215-19.
1. Disconnect the battery.
2. Drain radiator coolant. Drain plug will normally be located on lower
right or left side of the radiator facing the engine.
3. Remove radiator and air conditioning condenser if so equipped. In
some cases, the front grille may have to be removed. Measure distance from front cover to grille or brackets that may interfere with
camshaft against the length of the camshaft.
4. Remove the gas cap to relieve pressure. Disconnect fuel line and plug.
Replace gas cap.
5. Disconnect all linkage from carburetor such as throttle, throttle
springs, transmission, cruise control and automatic choke.
6. Tag and remove coil wires and sensor wires.
7. Tag and remove vacuum lines.
8. Remove valve covers.
9. Remove distributor cap and wires, rotate engine until rotor points
towards number 1 terminal in cap and pointer on front cover is on top
dead center (TDC) and remove distributor. Note the approximate position of the distributor housing in relation to the manifold to assist in
getting the distributor properly located during re-installation.
10. Remove carburetor and intake manifold. Remove and discard intake
manifold gasket.
11. Remove rocker arms and pushrods.
12. Remove hydraulic valve lifters.
13. Remove crankshaft pulley, and using a suitable puller, crankshaft
dampener.
14. Loosen oil pan and remove water pump and front cover.
NOTE: The front cover oil seal should be replaced before the front cover is
re-installed.
PREPARATION CHECKLIST
Hardware & Parts To Buy
• Gaskets - Edelbrock,
OEM or equivalent
• Pipe plugs, if needed
• Edelbrock Gasgacinch #9300
• RTV Silicone Sealant
• Chalk
• Paper and pencil
• Radiator coolant
• Edelbrock Sure Seat Valve Springs,
#5802 or #5902 (for rotators)
• Edelbrock Performer-Link True Rolling
Timing Chain and Gear Set, #7800
• Teflon tape
• Front cover oil seal,
OEM or equivalent
Tools & Equipment For Installation
• Box and open end wrenches
• Socket set
• Distributor wrench
• Pliers (channel locks & hose clamp)
• Screw drivers (regular and phillips)
• Torque wrench
• Hammer
• Gasket scraper or putty knife
• Timing light Vacuum gauge
• Rags
• Water bucket
• Harmonic balancer puller
• Masking tape (for tagging hoses and electrical wires)
• Engine oil & filter
• Crankshaft dampener puller
NOTE: Sure seat springs #5902 not applicable to cylinder heads 1977 and later with casting #14014416. These heads must use Edelbrock spring set
#5802.
REMOVAL OF ENGINE PARTS BEFORE CAMSHAFT INSTALLATION
Be sure to keep all parts in order
WARNING! DO NOT REMOVE RADIATOR CAP OR
RADIATOR HOSES WHILE ENGINE IS HOT!
©2008 Edelbrock Corp. Rev. 9/08 - AJ/mc
Brochure #63-2103
15. Remove fuel pump and fuel pump pushrod. Rotate engine until timing
marks are aligned as in Figure 1.
16. Remove bolts retaining camshaft sprocket. Remove sprocket and
chain.
17. Remove crank sprocket using a gear puller.
18. Remove camshaft.
• VALVE SPRINGS
WARNING ABOUT YOUR WARRANTY:
In order for this
Performer-Plus
cam and lifter kit to be covered under ANY
WARRANTY you must use either the correct Edelbrock
Sure Seat
valve
springs or the stock original equipment valve springs. Failure to do so
could cause the cam lobes to wear excessively and could cause additional engine damage.
1. This camshaft is designed to function either with the stock springs or
with Edelbrock
Sure Seat
valve springs #5802 (std. retainer set), or for
use with valve rotators, use #5902.
2. For older vehicles and vehicles with high mileage we highly recommend replacing the valve springs with Sure Seat Valve Springs # 5802
(std. retainer set), or for use with valve rotators, #5902.
NOTE: Sure Seat Springs #5902 not applicable to cylinder heads 1977
and later with casting #14014416. These heads must use Edelbrock
spring set #5802.
3. Check spring height and set to factory specifications for correct year
and model.
DUE TO THE MANY POSSIBLE SETTINGS OVER THE YEARS, WE
ADVISE CHECKING MOTORS, CHILTON, OR FACTORY SERVICE MANUALS FOR CORRECT SPRING HEIGHT FOR YOUR VEHICLE.
• LIFTERS
1. New lifters must be used with a new camshaft. Use only the lifters supplied with your kit .
2. Check to make sure all lifters fit freely in lifter bores.
• INSTALLATION INSTRUCTIONS
1. Coat cam lobes and bottom of each lifter with MOS2 lube supplied with
your kit. THIS WILL PREVENT CAM LOBE AND LIFTER WEAR FROM
OCCURRING DURING INITIAL ENGINE START UP.
2. Install new camshaft with new sprockets and timing chain.
CAUTION: When using
Performer-Link True Rolling Timing Chain and
Gear Set
(#7800 or #7802) with an Edelbrock cam and lifter kit,
straight up timing alignment is achieved. If any other timing gear set is
used, it is necessary to check camshaft 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. Use locking compound material on bolt threads holding gear to cam. Torque to factory
recommendations specified in Motors or other repair manual.
3. Install camshaft with timing marks lined up as recommended by factory specifications. See Figure 2.
• PUSHROD AND ROCKER ARM INSTALLATION—After the cam is
installed and timed correctly (see Figure 2), install pushrods, lifters and
rocker arms.
• VALVE ADJUSTMENT
1. Turn the engine over until the No. 1 cylinder exhaust lifter starts to
move up. At this point install adjusting nut on intake rocker arm and
adjust to zero clearance between rocker arm and valve. From this point
turn adjusting nut down (clockwise) 1/2 turn more for final adjustment.
2. Turn the engine over again until the intake lifter just stops coming
down. At this point install adjusting nut on exhaust rocker arm and
adjust to zero clearance between rocker arm and valve. From this point
turn adjusting nut down (clockwise) 1/2 turn more for final adjustment.
3. The above procedure assures correct hydraulic lifter preload. Repeat
this procedure for each of the other seven cylinders.
4. Install front timing cover with new gasket.
NOTE: Install new seal between oil pan and front cover if old seal is
damaged after removal. Use RTV silicone sealant on seal to ensure
proper seal to pan.
5. Torque front timing cover bolts to 6-7 ft. lbs.
6. Install front harmonic balancer and torque to 60 ft/lbs.
7. Install fuel pump and pushrod.
8. Install water pump using new gaskets and torque to 30 ft.-lbs.
9. Install intake manifold using new intake gasket set and torque bolts to
25 ft/lbs.
• DISTRIBUTOR INSTALLATION AND ENGINE TIMING
1. Turn the engine over in direction of rotation until the No. 1 intake valve
closes and continue until the pointer on the front cover is approximately five degrees before top dead center (BTDC). See Figure 1 for firing order.
2. Re-install the distributor with the rotor pointing towards No. 1 terminal
in the cap, and with the distributor housing in its original position. If
distributor will not drop down all the way to the flange on the manifold,
it will be necessary to align the distributor shaft with the oil pump
drive. Slowly rotate the engine until the distributor drops down against
the manifold, then continue turning until two complete revolutions are
completed and the timing marks once again come to five degrees
BTDC.
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. Engine oil & filter should be changed before and after break-in.
• CAMSHAFT & LIFTER RUN-IN
IMPORTANT:DO NOT ALLOW THE ENGINE TO RUN UNDER 2000 RPM FOR
THE FIRST 1/2 HOUR. Slow idle speeds may result in severe cam and
lifter wear.
START THE ENGINE AND BRING TO BREAK-IN RPM.
• IMPORTANT NOTES AFFECTING YOUR WARRANTY
CAM LOBE WEAR— Cam lobe wear is almost non-existent unless mismatched parts are used or installation of the cam and lifters is done
improperly. Most cam damage is caused by the timing gear loosening
due to improper torque on bolts. Bolts holding gear to camshaft should
be torqued carefully and a locking compound applied to threads of
bolts. Before installing your new Performer-Plus camshaft, check the
gear drive on the distributor and oil pump for any signs of wear. If
worn, be sure to replace with a new gear or you may wear out your
camshaft prematurely. High-volume oil pumps are not recommended
with Performer-Plus camshafts. Edelbrock camshafts are designed to
use O.E.M. type gears only.
©2008 Edelbrock Corp. Rev. 9/08 - AJ/mc
Brochure #63-2103
Loading...