1966 Pontiac Grand Prix Specifications & Service Data

Heritage Automotive Technical holds factory-accurate specifications and service data for the 1966 Pontiac Grand Prix covering 25 engine options: V8-389-(6.4L)-2BBL-GAS-VIN:<WA>, V8-389-(6.4L)-2BBL-GAS-VIN:<WB>, V8-389-(6.4L)-2BBL-GAS-VIN:<WC>, V8-389-(6.4L)-2BBL-GAS-VIN:<XA>, V8-389-(6.4L)-2BBL-GAS-VIN:<XB>, V8-389-(6.4L)-2BBL-GAS-VIN:<YA>, V8-389-(6.4L)-2BBL-GAS-VIN:<YC>, V8-389-(6.4L)-2BBL-GAS-VIN:<YD>, V8-389-(6.4L)-2BBL-GAS-VIN:<YU>, V8-389-(6.4L)-2BBL-GAS-VIN:<YV>, V8-389-(6.4L)-4BBL-GAS-VIN:<WE>, V8-389-(6.4L)-4BBL-GAS-VIN:<XC>, V8-389-(6.4L)-4BBL-GAS-VIN:<YE>, V8-389-(6.4L)-4BBL-GAS-VIN:<YF>, V8-389-(6.4L)-4BBL-GAS-VIN:<YL>, V8-389-(6.4L)-4BBL-GAS-VIN:<YW>, V8-389-(6.4L)-4BBL-GAS-VIN:<YX>, V8-421-(6.9L)-3x2BBL-GAS-VIN:<WH>, V8-421-(6.9L)-3x2BBL-GAS-VIN:<WJ>, V8-421-(6.9L)-3x2BBL-GAS-VIN:<YJ>, V8-421-(6.9L)-3x2BBL-GAS-VIN:<YK>, V8-421-(6.9L)-4BBL-GAS-VIN:<WG>, V8-421-(6.9L)-4BBL-GAS-VIN:<WK>, V8-421-(6.9L)-4BBL-GAS-VIN:<YH>, V8-421-(6.9L)-4BBL-GAS-VIN:<YT>. The categories below are available with a subscription — actual specification values are not shown here.

Specification data on file

• Mechanical Clearances
• Torque Specifications
• Tune-Up Data
• Valve Train
• Fluid Capacities

Additional technical resources

• Wiring Diagrams (250)

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