Thread: 1973 Holden HQ Monaro GTS 4-Door 253 Auto.

It appears you guys need a lesson in GM-H model codes. So in order, the numeric codes used on HT,HG, HQ are under

8 = Australia; 0, 1, 2 = body and trim; 1, 2, 3, 4, 7, 8, = engine, even no is a V8 and odd number is a six; last two, 11, 70, 80, 35, 69, 37, 77 = body style. 11 = two door sedan, 70 =- van, 80 = ute, 35 = wagon, 69 = four door sedan, 37 = notch back coupe, 77 = fast back coupe.

So an 80369, the most common, is a Kingswood 6 cyl. four door sedan. 81169 is a Premier same.

The principal identifier is the tag number as it was called in house. A letter followed by six numbers. This will identify the assembly plant and is how the production data was filed at service records. It is the only way of identifying a Torana factory fitted with RPO XU1. Monaros were made as Monaro, Monaro GTS, Monaro GTS350 (81837), and in the HQ series as LS (Luxury Sport). LS were not considered internally as high performance cars but pose cars like a Valiant Regal or a Ford Landau.

Originally Posted by StephenF10

The HK GTS also came with the 186S motor. IMHO it was a mistake to have a 6-cyl GTS as it devalued the whole GTS range. Ford did not make that mistake with the GT.

Below is my 327.

Looks like the top of mt wellington?

Nice Monaro

JC