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HG Holden specifications

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10 facts you may not have known

HG Holden common issues

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HK, HT & HG Holden Buyers Guide: What to Look for When Buying

When the Holden HG was released – Australia in 1970

HG Holden vs HT Holden

Australian Holden Part Finder

HQ Holden Monaro GTS HQ

1973–1974 · Sedan · Muncie M20 Wide Ratio, Muncie M21 Close Ratio
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Your vehicle: HQ Holden Monaro GTS HQ Change
Years 1973–1974
Body Sedan
Doors 4
Seats 5
Transmission(s) Muncie M20 Wide Ratio, Muncie M21 Close Ratio

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Exhaust

Component Position Part Number Brand Specification Diameter Material Quantity Notes
Exhaust Header / Extractor Front GEN090E-1
Fits 104 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: GEN090E-1

Genie Headers 6-cylinder red motor — Steel 1 Performance Exhaust catalogue
Exhaust Header / Extractor Front PH5027
Fits 105 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: PH5027

Pacemaker Red 6-cylinder dual header — Steel 1 Performance Exhaust catalogue
Exhaust Header / Extractor Front HU230STM
Fits 71 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: HU230STM

Hurricane Headers 253/308 V8 — Mild steel 1 Performance Exhaust catalogue
Exhaust Header / Extractor Front GEN413E-1
Fits 71 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: GEN413E-1

Genie Headers 253/308 V8 — Steel 1 Performance Exhaust catalogue
Exhaust Manifold Gasket Front DSF002
Fits 112 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: DSF002

Viper Red motor 138/149/161/173/186/202 — Gasket 1 Performance Exhaust catalogue
Exhaust Manifold Gasket Front DSF009AX2
Fits 75 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: DSF009AX2

Viper Holden V8 253/308 — Gasket 1 Performance Exhaust catalogue
Exhaust Manifold Gasket & Bolt Kit Front DSF009AX2KIT
Fits 70 vehicles
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Vehicle: HQ Holden Monaro GTS HQ    Part: DSF009AX2KIT

Viper Holden V8 253/308 — Gasket + hardware 1 Performance Exhaust catalogue
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The HG, introduced to the Australian buying public on July 26, 1970, would serve as a replacement for the HT.

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It was visually similar to the HT, in fact up to that point it was the least visually changed Holden model. Mechanically tweaks and upgrades were made to the safety, brakes, suspension and overall driveability.

It would be the last Holden sold in the luxury Brougham variant. The HG was available as a Belmont, Kingswood and Premier, all variants available as a sedan and a wagon. The Monaro was available as the Monaro and the Monaro GTS. The Utility model was available as a Belmont and a Kingswood where as the Panelvan was available only as the entry level Belmont variant.

HK HT HG Repair Manual

All engines remained from the previous model HT Holden. They were the 161cu in and 186cu in inline six engines and the 253cu in, 308cu in and 350cu in V8 models. A first for an Australian large car was the 3 speed ‘Trimatic’ automatic transmission.

Big changes were on the horizon for Holden and its large cars.

Holden retained the top spot in Australian car sales, still the top selling Australian car by a long shot beating out Fords XW/ XY Falcon and Chrysler VF/ VG Valiant. Competitors were closing in however

Production totaled 155 787 cars (6 147 monaros), production spanned 12 months. July 1971 saw the introduction of the replacement model, the HQ Holden.