Holden HQ 1971 - 1974 Service Manual (Volume 4, A Holden Publication, M37018)

Holden HQ 1971 - 1974 Service Manual (Volume 4, A Holden Publication) is the definitive factory-approved technical guide for classic Holden owners, restorers, and mechanics. As the essential fourth installment of the official General Motors-Holden workshop series, this original-spec manual delivers the precise engineering data and teardown procedures required to maintain, service, and tune the heart of your HQ series vehicle.

Sourced directly from official GMH documentation, this authorized reproduction provides the meticulous mechanical breakdowns necessary to keep classic Australian iron running perfectly.

Core Factory Coverage Includes:

• Engine Assemblies: Full technical specifications, rebuild procedures, and tolerances for 6-cylinder inline engines (130, 173, and 202 cu.in.) as well as legendary V8 powerplants (253, 308, and 350 cu.in. Chevrolet).

• Clutch Components: Factory adjustment limits, pressure plate specs, and alignment instructions for manual transmission pairings.

• Fuel Systems & Delivery: In-depth coverage of fuel pumps, lines, and standard carburetion setups for both L6 and V8 configurations.

• Cooling Systems: Complete breakdowns of radiator design, water pumps, thermostats, and cooling circuit routing across all engine options.

• Fuel Tank & Exhaust: Detailed schematic overhauls of original fuel storage, mounting layouts, and factory single or dual exhaust pipe systems.

• Engine Tune-Up: Exact ignition timing, point gaps, spark plug specs, and carburettor adjustment values directly from GMH engineers.

Target Vehicle Applications:

This manual provides critical internal specifications applicable to all models across the Holden HQ generation running these powertrains, including:

• Belmont & Kingswood: Sedans, Station Sedans, Utilities, and Panel Vans.

• Premier: Luxury Sedans and Wagons.

• Monaro: Base Coupe, GTS Coupe, GTS 4-Door, and high-performance GTS 350 packages.

• Statesman: Custom and de Ville long-wheelbase variations.

• Commercials: One Tonner Cab Chassis variants.

Key Features:

• Authentic Factory Text: Features the exact line drawings, clear exploded views, and technical step-by-steps utilized by dealership service mechanics in the 1970s.

• Precision Tune-Up Specs: Provides hard-to-find original torque ratings, clearances, and diagnostic procedures missing from basic generic store guides.

• Restoration Blueprint: An absolute necessity for any purist performing a period-correct powertrain or engine bay restoration.