Description

The GSC R3 is a max-effort, high-RPM profile for ported heads and methanol builds. It’s engineered to carry power where the Coyote lives on the limit, with lobe design modeled against ported Gen 4 Mustang Coyote cylinder head behavior and rocker geometry. Each set is cut from our U.S.-made forged billet blanks and finished with BLACK ISE for reduced friction and long life. 

DI note: the high-pressure fuel pump (DI/HPFP) lobe is kept to OEM spec for proper pump operation.

Max-effort race cams for ported-head Gen-4 Coyote Mustangs. Built for high rpm and methanol-capable combos. Spring upgrade required. DI/HPFP lobe retained. Fuel: Methanol 

Specifications

Install notes

  • Fuel: Methanol. Gasoline/Ethanol blended fuels wont reach peak powers with this profile.
  • Clearance: Always verify piston-to-valve with your exact heads/pistons/gasket stack. With OEM pistons & deck heights, the full phaser range is typically usable without clearance issues.
  • Use upgraded valve springs (and Ti retainers) set to the tuner’s rev limit; check installed height and coil bind.
  • Active VCT requires a calibrated phasing window; locked setups require a lockout kit and fixed timing calibration.
  • See install sheet for torque sequence and procedures; prime oiling and fuel (HPFP follower inspection) on reassembly.

Specifications

  • Fuel: Methanol
  • RPM (Active VCT): 6,500–10,000 (≈9,500 peak)
  • RPM (Locked VCT): 6,700–8,900 (≈8,400) or 7,800–10,000 (≈9,500)
  • Use Case: Extreme Race · high-RPM
  • Head Type: Ported heads
  • DI Pump Lobe: OEM geometry retained (HPFP compatible)

Product Details

  • Profile intent: Max-effort, high-RPM for ported heads and methanol fuel combos
  • Valve springs: Upgrade required (use GSC-matched springs; Ti retainers recommended)
  • NA Builds require Aftermarket Intake manifolds such as the Cobra jet. 
  • VCT options: Supports Active VCT or Locked phasers (see timing reference below)
  • Manufacturing: MADE IN THE USA; forged from proprietary U.S.-sourced bearing-grade steel, BLACK ISE surface treatment, CNC to tighter-than-OEM tolerances
  • Fitment: 2024–2026 Mustang GT 5.0L & Dark Horse

Compatibility

  • 2024 - 2025 Ford Mustang 5.0L Coyote Gen 4 R3 Camshaft Set (Req Ported Heads & Spring Upgrade)

The GSC R3 is a max-effort, high-RPM profile for ported heads and methanol builds. It’s engineered to carry power where the Coyote lives on the limit, with lobe design modeled against ported Gen 4 Mustang Coyote cylinder head behavior and rocker geometry. Each set is cut from our U.S.-made forged billet blanks and finished with BLACK ISE for reduced friction and long life. 

DI note: the high-pressure fuel pump (DI/HPFP) lobe is kept to OEM spec for proper pump operation.

Max-effort race cams for ported-head Gen-4 Coyote Mustangs. Built for high rpm and methanol-capable combos. Spring upgrade required. DI/HPFP lobe retained. Fuel: Methanol 

Install notes

  • Fuel: Methanol. Gasoline/Ethanol blended fuels wont reach peak powers with this profile.
  • Clearance: Always verify piston-to-valve with your exact heads/pistons/gasket stack. With OEM pistons & deck heights, the full phaser range is typically usable without clearance issues.
  • Use upgraded valve springs (and Ti retainers) set to the tuner’s rev limit; check installed height and coil bind.
  • Active VCT requires a calibrated phasing window; locked setups require a lockout kit and fixed timing calibration.
  • See install sheet for torque sequence and procedures; prime oiling and fuel (HPFP follower inspection) on reassembly.

Specifications

  • Fuel: Methanol
  • RPM (Active VCT): 6,500–10,000 (≈9,500 peak)
  • RPM (Locked VCT): 6,700–8,900 (≈8,400) or 7,800–10,000 (≈9,500)
  • Use Case: Extreme Race · high-RPM
  • Head Type: Ported heads
  • DI Pump Lobe: OEM geometry retained (HPFP compatible)

Product Details

  • Profile intent: Max-effort, high-RPM for ported heads and methanol fuel combos
  • Valve springs: Upgrade required (use GSC-matched springs; Ti retainers recommended)
  • NA Builds require Aftermarket Intake manifolds such as the Cobra jet. 
  • VCT options: Supports Active VCT or Locked phasers (see timing reference below)
  • Manufacturing: MADE IN THE USA; forged from proprietary U.S.-sourced bearing-grade steel, BLACK ISE surface treatment, CNC to tighter-than-OEM tolerances
  • Fitment: 2024–2026 Mustang GT 5.0L & Dark Horse
  • 2024 - 2025 Ford Mustang 5.0L Coyote Gen 4 R3 Camshaft Set (Req Ported Heads & Spring Upgrade)

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