Toyota GT86/Subaru BRZ Engine Builds

Rod Knock Rebuild

Hearing the dreaded rod knock? It’s one of the worst sounds for any FA20 engine owner, signaling internal damage that needs immediate attention. Unfortunately, rod knock is a common issue with the FA20 engine, often caused by oil starvation or prolonged high-RPM driving. Our Rod Knock Rebuild service addresses the root of the problem with a complete engine overhaul, starting from a bare block and rebuilding it with upgraded components for improved reliability. The typical cost for this service is around £3,000.

At ARG Performance, we use our extensive experience with the FA20 platform to ensure every rebuild is done right. We’ve refined our process to offer the best value, combining quality parts with precision assembly. The result is an engine that not only solves the issue of rod knock but also enhances overall performance and durability, making your car ready for spirited driving or track use.

What's Included:

  • ACL Race Bearings: These high-performance bearings offer greater load capacity and are specifically designed for engines that experience high RPMs and aggressive driving.
  • New Crankshaft and Rods: In most cases, the original crankshaft is damaged beyond repair. We replace it with a brand-new crankshaft and inspect the rods for heat damage, replacing them if necessary to ensure reliability.
  • Low-Temperature Thermostat: By lowering the engine's operating temperature, we reduce the risk of overheating, a key factor in preventing future engine damage.
  • ARG Performance Baffle Plate: This custom-designed baffle plate helps control oil flow within the engine, reducing the chance of oil starvation during hard cornering or high-speed driving.
  • Killer B Pickup Pipe: A stronger and more efficient oil pickup pipe, designed to improve oil delivery even under extreme conditions.
  • Gaskets and Seals: We replace all engine gaskets and seals to prevent leaks and ensure a perfect seal, using high-quality parts for maximum reliability.
  • All Fluids, Oil, and Filter: We use only premium fluids and filters to protect the freshly rebuilt engine from the start.
  • Ultrasonic Carbon Clean: Our ultrasonic cleaning process removes carbon deposits from the intake and exhaust valves, improving engine efficiency and performance.

With our Rod Knock Rebuild, you can trust that your FA20 engine will be restored to peak condition, ready to take on whatever you throw at it. Every engine we build is carefully assembled and tested to meet our strict quality standards.

Rod-Only Forged Build

Looking to upgrade the strength of your engine? Our Rod-Only Forged Build is designed for drivers who want extra peace of mind and durability, whether you’re pushing the limits of naturally aspirated performance or boosting with forced induction. This build focuses on reinforcing the weakest point of the FA20 engine — the connecting rods — while offering a range of customizable upgrades to suit your specific goals. The cost starts at £4,000.

Our team has extensive experience building high-performance FA20 engines. We carefully select each component to ensure it can withstand the increased stresses of high-power applications. This build is ideal for enthusiasts who want a reliable, stronger engine without going for a full bottom-end rebuild.

What's Included:

  • ACL Race Bearings: Chosen for their ability to handle increased loads, these bearings reduce friction and wear, even at high RPMs.
  • Skunk2 Alpha Conrods: These forged conrods are significantly stronger than stock, designed to handle the extra power and torque from turbocharging or aggressive driving.
  • Kelford Valve Springs: Uprated valve springs prevent valve float at high RPM, allowing for better high-end power and smoother operation.
  • ARP Head Stud Kit: High-strength head studs provide superior clamping force, reducing the risk of head gasket failure under increased cylinder pressure.
  • Cosworth Head Gaskets: High-performance gaskets designed for a perfect seal, ensuring reliability even under boost.
  • Low-Temperature Thermostat: Reduces engine operating temperatures, ideal for high-performance builds to maintain safe temperatures during spirited driving.
  • Killer B Pickup Tube: Upgraded for better oil flow, essential for engines that will see track use or high-G cornering.
  • ARG Performance Baffle Plate: Improves oil control, reducing the risk of oil starvation, a common issue during aggressive driving.
  • Gaskets and Seals: Full reseal using high-quality components to prevent any leaks and ensure long-term reliability.
  • Piston Rings and Light Hone: New piston rings and a light cylinder hone for improved compression and a refreshed seal.
  • All Fluids, Oil, and Filter: We only use premium engine oil and high-quality filters to protect the new build from the start.
  • Machining Work: We perform all necessary machining, including balancing and blueprinting, to ensure optimal performance and longevity.
  • Ultrasonic Carbon Clean: Deep clean to remove carbon deposits, restoring lost power and improving overall engine efficiency.

The Rod-Only Forged Build offers an excellent balance of cost and performance, giving you the confidence to push your car harder without worrying about the engine's internal strength. Whether you're building for track days or spirited road driving, this package provides a solid foundation for future upgrades.

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