Exhaust valve Kit NISSAN 300/VG30D 3.0L DOHC/300 ZX 90-96 Porsche Renault 8200431081

Exhaust valve Kit NISSAN 300/VG30D 3.0L DOHC/300 ZX 90-96 Porsche Renault 8200431081The production of our race valves begins with a one piece forging where the valve head is forged in a slow two step process to maintain a good material flow. Then it is machined on the CNC in several stages to ensure the precision of the final dimensions. Then, we perform another thermal treatment for relaxation, followed by nitride curing (or coating process depending on the application). Finally, we perform one more grinding followed by a patented

SKU: 5844031583 · From astonvaughan.co.uk