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NA9 - Evaporative Emission Control
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Specifications

Rev: Nov 24, 2022 - added Autolite spark plugs

 

Spark Plugs

 

The NGK equivalent to the AC Delco R43/R44 plug for the 70 Z28 but are extended like a R45S plug.

 

 

 

 

Autolite equivalent to a AC Delco R45

 

 

 

Fuse Box

 

 

Tach Wire

 

 

 

 

Temperature Sending Unit

 

 

 

 

Alternator

    

1100837 - Used also on 350/320 HP/ 396/375 HP/ or 454 Eng.

 

 

 

New connector available from  http://www.picocanada.com/en/product/5433.php

 

 

Alternator Numbers

 

37A = 37 amps

 

0D  -  0=1970     D=April

 

 

Alternator Bracket

 

 

 

5 hole 1970 bracket

 

 

Other Engine Shots

 

TCS temp send unit.jpg (38626 bytes)             TCS relay.jpg (39726 bytes)                                               

TCS Temp Send Unit      TCS Relay                 

 

 

Starter

 

680

1108418

0E22  3 - May 22 3rd shift

 

 

Horn Relay

 

 

 

Voltage Regulator and Capacitor

 

The capacitor is # 1964086 .5 MF

 

 

Coil

 

coil.jpg (37532 bytes)    

One wire you can't see is the black points wire to the - side of the coil

 

 

coil showing radio suppr condensor.jpg (45344 bytes)

Coil  showing the radio suppression condenser

 

 

Battery Tray

 

From GM in 1985

 

 

Battery Fender Ground

 

 

 

Horns