Better cast parts than OEM?

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When pushing OEM engines to their limits, factory components often fall short. Platinum Racing Products in partnership with Crest CNC addresses these issues with their new cast cylinder head for the Subaru EJ series.

✅ Solving EJ Series Problems
Known for head lifting and cracking, the EJ20 needed a robust solution. PRP's cast head offers improved intake port spacing for larger valves, thicker head material, and a redesigned exhaust port for better flow and reduced back pressure.

☝️ Why Cast Over Billet?
While billet is great for prototypes, casting is ideal for mass production, offering better thermal expansion properties and consistent quality.

🔥 Enhanced Performance
The new design supports 14mm head studs and versatile coil mounting options, making it easier for high-power builds. Customizable port designs allow for CNC porting up to 420 CFM, ensuring optimal performance.

PRP: https://hpcdmy.co/prpej

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TIME STAMPS:
0:00 - OEM Engine Limitations
0:17 - PRP Cast Cylinder Head
0:25 - What's Wrong With EJ Heads?
1:01 - Aftermarket Design Advantages
1:44 - 14mm Head Studs
2:11 - Head Torque
2:28 - Thicker Deck Surface
3:12 - Intake Port Vs Inlet Manifolds
3:44 - Dog Leg Exhaust Ports
4:17 - Port Flow
4:35 - Exhaust Manifold
4:52 - OEM Parts
5:08 - Why Not Billet?
5:31 - Production Runs
5:58 - Thermal Expansion
7:08 - Coil Options
7:44 - Port Design & Shape
8:30 - Pricing ($8,000 AUD)
8:55 - Platinum Racing Products
9:13 - BUILD.TUNE.DRIVE
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TAGS:
#highperformanceacademy #buildtunedrive #crestcnc #prp #platinumracingproducts #wtac #learndriveoptimise #learntotune #enginebuilding101 #cars #motorsport #racing #boost #subaru #ej #ej20