Holden Monaro - Engines

Explore the heart of your Holden Monaro with our in-depth information on LS engines. From the history of these powerful engines to the specifications and details specific to the Australian and American models, we've got you covered.

GM LS1 Monaro and Pontiac GTO Engines: Specifications and Power Figures

The GM LS1 engine has earned a legendary reputation thanks to its performance and reliability, powering iconic vehicles like the Holden Monaro and the Pontiac GTO. First introduced in the late 1990s, the 5.7-litre LS1 V8 became a cornerstone of General Motors' performance line-up. In the Holden Monaro, Australia's beloved muscle car, and its American counterpart, the Pontiac GTO, the LS1 delivered exceptional power and torque. The LS1 engine featured an aluminium block and heads, a pushrod design, and a 346 cubic inch displacement. Power figures varied slightly depending on the model and year, but the engine typically produced between 255 kW (342 hp) and 260 kW (350 hp) with torque peaking around 470 Nm (347 lb-ft). This reliable and powerful V8 remains a favourite among performance enthusiasts, with its balanced blend of horsepower, lightweight construction, and tuning potential ensuring its place as a standout engine in automotive history.

LS Engine Information

Learn all about the LS1, LS2, and LS3 engines that power the Holden Monaro and Pontiac GTO. Discover the unique features, performance capabilities, and maintenance tips for these legendary engines. Whether you're a car enthusiast or a proud owner, this section will provide valuable insights into the heart of your vehicle.

Holden GTS Monaro 1968-1978

Holden Monaro GTS (1968–1978): Engine Variants and Power Specifications

The Holden Monaro GTS, produced between 1968 and 1978, was an iconic Australian muscle car that offered a range of impressive engine variants throughout its decade-long production. The first generation (HK, HT, HG models) introduced powerful options like the 186S straight-six engine and the 307-cubic-inch (5.0L) Chevrolet V8, later complemented by the 327-cubic-inch (5.4L) and legendary 350-cubic-inch (5.7L) V8 engines. The second generation (HQ, HJ, HX, and HZ models) saw the addition of locally produced Holden V8 engines, including the 253-cubic-inch (4.2L) and 308-cubic-inch (5.0L) variants, offering power outputs ranging from approximately 185 hp (138 kW) to over 300 hp (224 kW) in performance-tuned setups. These engines, paired with manual or automatic transmissions, made the Monaro GTS a high-performance vehicle that could hold its own on the road and racetrack. The combination of robust engineering, sleek design, and raw power cemented the Monaro GTS as a true Australian motoring legend.

Pontiac GTO Details

Explore the connection between the Holden Monaro and the Pontiac GTO, and uncover the shared history and engine similarities between these two classic vehicles. From design cues to performance upgrades, this section will give you a deeper appreciation for the engineering excellence that defines both the Monaro and the GTO.

Contact Holden Monaro for all your LS engine needs!

Whether you need maintenance, repairs, or upgrades, our expert team is here to help. Reach out to us today.