Manual

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Installation Instructions

and Warranty Information

Read all instructions carefully before attempting installation.

Rev. 2 2-28-13 DSL

Corporate Ofce: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 • FAX 909.599.6424

Chevrolet & GMC Trucks with 4.3 V6

1840S 1988-95 C/K w/o AIR Inj.

1841S 1988-95 C/K w AIR Inj.

Summary of content (5 pages)

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Corporate Office: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 • FAX 909.599.6424 Installation Instructions and Warranty Information Chevrolet & GMC Trucks with 4.3 V6 1840S 1988-95 C/K w/o AIR Inj. 1841S 1988-95 C/K w AIR Inj. Read all instructions carefully before attempting installation. Rev.
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PerTronix© thanks you for choosing JBA HEADERS, the best fitting, highest quality header on the market. In order to realize the full potential of our good fit, please read and understand these instructions completely prior to starting work. Check to make sure you received the proper parts for your application. The header number will be stamped on the engine flange. If you are unsure you have received the proper parts call before you start work.
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5. Remove the top half of the fan shroud. Remove the serpentine belt. Using a pulley remover (Snap-On CJ117A or equivalent), remove the power steering pump pulley. The three bolts on the front of the power steering pump may now be removed. Remove the bolt going from the black steel bracket into the back of the alternator. Remove the nuts holding the black steel bracket to the head on both sides of the number one exhaust port. The black steel bracket is still attached to the back of the power steering pump.
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13. As with the driver’s side, apply anti-seize to the bolts, apply silicone to the dome flange, and bolt the headers to the head and the exhaust system. Reattach the spark plug looms in the same manner as the driver’s side. 14. If retaining the heat riser, clamp the supplied heat riser adapter to the header using the supplied hose clamp. Shorten flexible heat riser tube to fit (about 3-1/2 inches). Take care not to cut the tube too short. 15. Recheck everything! 16. Start engine and let it warm up.
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