HT model designations

Designation

Model

80337

Monaro coupe L6

80437

Monaro coupe V8

80737

Monaro GTS Coupe L6

80837

Monaro GTS Coupe L8

81837

Monaro GTS 350 Coupe

HT engines

Engine designation

Capacity - cubic inches

Compression ratio

Power - brake horsepower

161H

161

9.2:1

114

186P

186

9.2:1

130

186S

186

9.2:1

145

253H

253

9.0:1

185

307

307

8.75:1

210

308H

308

9.0:1

240

350M

350

10.25:1

300

350A

350

9.0:1

275