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The GM LS and LSX engine family is one of the most popular performance platforms in Australian motorsport — lightweight, powerful, and with an enormous aftermarket. Prime Speedworks stocks precision fasteners and performance components for LS builds, including P1 Fasteners head studs, main studs, and rod bolts engineered for Gen 3, Gen 4, and LSX applications across street, strip, and circuit.

Whether you're building a boosted LS swap, a naturally aspirated track car, or a four-figure drag engine, our LS range covers the hardware that serious builders trust. All parts are sourced from proven motorsport brands and stocked in Australia for fast dispatch.