LS1 Heads
Ported LS1 Heads
If you're chasing serious performance gains from your LS1-powered vehicle, you're in the right place. At Australia Speed, we don’t just sell LS1 heads — we specialise in CNC-ported LS1 heads engineered to deliver unmatched airflow, throttle response, and horsepower. Whether you're prepping a street-legal racer or refreshing an aging engine, our precision-machined CNC heads are designed to outperform stock and hand-ported alternatives. For enthusiasts who want more than bolt-on power, LS1 CNC heads offer the reliability and consistency your build demands.
What Are LS1 Heads?
LS1 heads refer to the aluminium cylinder heads used in GM’s LS1 V8 — a platform celebrated for its power potential. These heads play a key role in how effectively your engine breathes, impacting both torque and top-end power.
While stock LS1 heads perform well, serious gains come from CNC porting — a process that digitally sculpts the intake and exhaust ports for maximum airflow and combustion efficiency. Our CNC-ported LS1 heads are precisely machined to tight tolerances, unlocking horsepower and throttle sharpness that standard or hand-ported heads can't match
Why Enthusiasts Choose Ported LS1 Heads
When stock isn't enough, CNC porting eliminates airflow restrictions, improves fuel atomisation, and delivers a noticeable upgrade across the rev range.
Builders choose our CNC-ported LS1 heads for:
- Proven gains in horsepower and torque
- Enhanced drivability and throttle response
- A reliable performance foundation for camshaft, intake, or exhaust upgrades
- Consistent results you can depend on — on the street or at the track
Explore Our LS1 CNC Heads
Australia Speed proudly offers LS1 CNC heads made for consistent, repeatable performance. CNC porting ensures each cylinder head is machined to exact specifications, reducing inconsistencies that may be found in hand-ported heads.
Benefits of LS1 CNC Heads:
- Maximised airflow for enhanced engine breathing
- Improved fuel combustion and burn efficiency
- Precision-matched chambers for performance reliability
- Durable construction for track and street use
Australia's Trusted Source for LS1 Heads
When it comes to performance LS1 heads for sale, Australia Speed is a trusted name among mechanics, racers, and car enthusiasts nationwide. Our team brings years of technical knowledge and tuning experience to every product we offer.
Why buy from Australia Speed?
- Premium Australian-made CNC ported heads
- Local shipping and responsive customer service
- Proven track record of performance and reliability
- Access to expert advice and recommendations
You’ll also find our collection extends beyond LS1 components—explore LS2 heads and LS3 heads to compare your options or future-proof your build.
LS1 Heads & Supporting Components
While heads are a huge part of the equation, supporting mods are essential to getting the most from your build. Consider pairing your new ported LS1 heads with:
- A camshaft upgrade
- High-performance intake and exhaust systems
- Matching LS1 piston rings
Don’t forget to explore our full range of performance car parts to support your engine goals.
Ready to Elevate Your LS1’s Performance?
Whether you’re starting a fresh LS1 build or refining an existing setup, Australia Speed has you covered. Our CNC ported offerings give you the performance boost you’re after while ensuring long-term reliability.
Explore our full range of LS1 CNC heads today and bring your engine to life with quality you can count on. Experience the Australia Speed difference—precision, reliability, and power with every product.