Vacuum Diagram 72 Chevelle w/ AC - Chevelle Tech
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post #1 of 2 (permalink) Old Jul 17th, 05, 9:03 PM Thread Starter
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Vacuum Diagram 72 Chevelle w/ AC

Can someone e-mail me or post a copy of the vacuum and wiring diagram from the assembly manual for a 72 Chevelle with AC? I have the assembly manual for a 70, specifically sheet E3, but the donor was from a 72 Chevelle and there are subtle differences. We have a vacuum tubing and grommet for a 70 that goes through the firewall to the vacuum operated heater water coolant valve, but it is missing the plug that connects to the three ports on the bottom of the control assembly. Since 72's did not have the heater water control valve, I think that the vacuum line was deleted from the 72 plug for port #2 and so I will have to modify the existing plug for the 70 tubing. This is much harder to explain than it realy is, so can someone please send a copy of the diagram? Thanks ahead of time.

Jeffrey Hicks
70 Chevelle 402 30 Over, Stock Crank/Rods, 190 Dome Forged Pistons, Ext Energy Comp Cam, 215 Heads/Std Valves, 10:1, Edelbrock Perf 2.O Al Intake, Holley DP, Dyno @375Hp&425ftlbs, >400@2900-4600, TH400, Eaton Posi/4.10 Richmond Gears
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post #2 of 2 (permalink) Old Jul 22nd, 05, 11:24 AM
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Re: Vacuum Diagram 72 Chevelle w/ AC

Call Year One. They faxed a wiring diagram to me last week. 800 year one.
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