1. Turn off the ignition and disconnect the negative battery cable.
2. Depress the locking tab and then disconnect the Mass air sensor electrical connection.
3. Loosen the hose clamp which secures the stock intake tube to the turbo inlet tube.
4. Disconnect the stock intake tube from the turbo inlet tube and then lift the complete stock intake assembly from the vehicle as shown.
NOTE: K&N recommends that customers do not discard factory air intake.
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TIMING FUNCTIONS
Before continuing with the installation, here are a few definitions you should be aware of: Initial Timing: This is the base timing (also referred to as idle timing) of the engine before centrifugal advance begins. Centrifugal Advance: The centrifugal advance mechanism is made up of weights, springs, advance cam, and an advance stop bushing. The amount and rate of advance that your distributor is capable of is determined by the centrifugal timing. If you ever wish to lock out the centrifugal advance, refer to the centrifugal advance section.
Total Timing: This is the total of the initial timing plus the centrifugal advance added together. Example: 10° Initial + 25° centrifugal = 35° Total Timing.
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Victor Jr. 23š heads are designed for competition and ultra high-performance street small blocks and accept valve train hardware designed for standard 23š Chevrolet heads. They have a 550+ hp potential, out-of-the-box, for a cost effective, race-winning set-up. High-flow precision-cast 215cc intake runners offer excellent port alignment with Fel-Pro #1206 intake gaskets (recommended) without the need for port matching. These heads also feature .300” raise exhaust ports and 64cc or 70cc chambers with hardened, ductile iron valve seats and phosphor bronze guides. A 9/16” thick deck surface provides superior gasket retention. Valves are 1-piece, stainless steel high-quality construction.
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Before beginning this installation, take a few minutes to preread these instructions. Check that all necessary materials, units and accessory kits that are listed in the application guide are on hand. It is imperative for proper engine operation and vehicle life that adequate engine cooling is provided (i.e. fan shroud and/or large fan). Also check the vehicle weight capacity as listed on the vehicle certification label. Advice is hereby given by the vehicle manufacturer that for proper driving and handling, the reserve weight capacity not be exceeded, refer to the manufacturer recommended sizing guide
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The following instructions begin after the timing cover and old timing set have been removed.
Installing the timing set and degreeing the camshaft will be easier if you loosen the rocker arms so that the camshaft can turn freely. You should be able to turn the camshaft by hand. Make sure that the engine mounting surfaces and your new timing set have been thoroughly cleaned with a good solvent. If you are using a timing set with three keyways, select the appropriate keyway for your camshaft timing specifications. COMP Cams ® recommends the standard timing position for most applications. This position uses the round or “O” timing and keyway marks. Standard Timing Location: This is the same as original O.E.M. setting. Use keyway and crankshaft gear tooth marked “O”.
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Installation Instructions:
Pull and recline front seats all the way forward. Flip rear seat bottom up and fold seat back down.
Set the DU-HA in truck, centered on the floor, with DU-HA lettering facing forward (as shown). Make sure slot in the DU-HA is aligned with center child safety seat bracket.
With the DU-HA centered on floor use the DU-HA as a template to mark and drill two 5/16” holes in the floor flaps. Flip up the front flap to make sure the DU-HA is positioned against the rear of the cab before drilling. If you do happen to drill through the duct below the floor flaps they are only pressure release vents for cab pressure so a hole will not affect them. It’s best to secure driver’s side first before drilling passengers’ side.
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1. Remove stock timing cover. Rotate engine to top dead center of cylinder #1 so that the timing marks on the original crank and cam sprockets are directly lined up with each other, i.e. the mark on the crank sprocket will be at 12 o’clock (straight up) and the mark on the cam sprocket will be at 6 o’clock (straight down).
2. Remove sprockets and chain.
3. Install desired offset bushing from enclosed set. Set selection provides 0-Gray,
2-Gold, 4-Copper, 6-Silver, 8-Black, Camshaft Degree Options.
4. Install cam and crank gears.
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Installation of a Performance Automotive Group body lift kit will change the vehicle’s center of gravity and handling characteristics both on- and off-road. You must drive the vehicle safely! Extreme care must be taken to prevent vehicle rollover or loss of control, which could result in serious injury or death. Avoid sudden sharp turns or abrupt maneuvers and always make sure all vehicle occupants have their seat belts fastened.
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Installation Instructions. Read Me! Rv. 01/04
1. DISCONNECT NEGATIVE (-) BATTERY CABLE.
2. Remove throttle body air intake system.
3. Remove (3) nuts & studs from the throttle body & manifold. (Ref. “C”)
4. Remove support bracket from engine block to throttle body. (Ref. “D”)
* Please Note: When removing support bracket bolt at engine block, loosen bolt enough to remove bracket. DO NOT REMOVE BOLT.
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THE FIRST THING TO DO IS TAKE INVENTORY of the parts received. Get familiar with the parts! The hardware list on the next page will list all fasteners by size and where they go. You’ll need to use assembly lube or grease for installing the urethane bushings. We use Valvoline #612 multi-purpose red grease. Loctite #609 is provided with this kit. Use it on all threaded fasteners.
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