Roadmaster V8-350 5.7L (1994)
1.
Opti-Spark Distributor II (Pin Drive - WITH positive vent system) can be identified by the intake manifold vacuum hose connection (3), air intake
duct hose connection (4), or non-splined pin drive (1). Refer to Figure 1.
2.
Opti-Spark Distributor I (Splined Drive - WITHOUT positive vent system) can be identified by the splined pin drive (1), or the lack of intake
manifold vacuum hose connection and air intake duct hose connection. Refer to Figure 2.
Important:
it is necessary to use tool J 39997 (or equivalent) for the Distributor Cap Screws and tool J 39998 (or equivalent) for the Rotor Screws. Parts are
currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
J452O (B/D/F Cars)
Use published labor
J436O (Y Car)
operation time
