Edelbrock 305 General Instructions

©2010 Edelbrock LLC

Rev. 10/10 - AJ/mc

Brochure #63-3702

Part #3702

PERFORMER-PLUS CAMSHAFT / LIFTERS / LUBE KIT 

PART #3702

305 c.i.d. 1987-1995 5.7L TBI Chevrolet V8 LG-4 engines

(1981-1987)

GENERAL INSTRUCTIONS

• Please study these instructions carefully before you remove your stock camshaft. If you have any questions or problems, do not hesitate to con-

tact 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 PERFOR-

MANCE, 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 #3701 (#3706 for 1987 engines). Both are

dyno-matched and street proven to work as a team; especially when matched with the Edelbrock Micro Plus ignition computer and Edelbrock

Tubular Exhaust Systems. However, the Performer camshaft package may be used by itself.

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

Hardware & Parts To Buy

Gaskets - Edelbrock, OEM or equivalent

Pipe plugs, if needed

Edelbrock Gasgacinch #9300

RTV Silicone

Chalk

Paper and pencil

Radiator coolant

Edelbrock Sure Seat Valve Springs, #5802 or #5902 (for rotators)

Edelbrock Performer-Link True Rolling Timing 

Front cover oil seal, OEM or# equivalent

Chain and Gear Set #7800/#7802

Teflon tape

Edelbrock Break-In Oil, #1070

BEFORE BEGINNING: If the Air Conditioning condenser needs to be

removed to provide clearance for camshaft removal, have the system

evacuated by an appropriate repair facility BEFORE starting the installa-

tion. The same facility can recharge the system after installation.

REMOVAL OF ENGINE PARTS BEFORE CAMSHAFT INSTALLATION

Be sure to keep all parts in order. WARNING! DO NOT REMOVE RADIA-

TOR CAP OR RADIATOR HOSES WHILE ENGINE IS HOT!

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 dis-

tance 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.

PREPARATION CHECKLIST

NOTE: Sure seat springs #5902 not applicable to cylinder heads

1977 and later with casting #14014416. These heads must use

Edelbrock spring set #5802.

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.