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4i 1994-1996
5L 396/402 Chevrolet Biscayne 1966-1969 7
7i (DBA-JF2) 2011-2017
0L L4 Gas 2010-2016 OEM LF5013Z40A Mazda Premacy 2
Intake valve NISSAN CA18 DET Subaru 4i 1994-1996The 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
