GSC Subaru EJ Series Chrome Polished Intake Valve - 37mm Head (+1mm) - SET of 8 Head Studs with premium organic friction materials

with premium organic friction materials for heat tolerance and reduced fade

4 x Auxiliary outputs*

The Outfront Motorsports 775 Pocket Ported Cylinder Heads are the perfect performance head upgrade for the weekend racer

The factory type is made from metal but the design is the bead type which is not as effective in sealing as the super grommet design

GSC Subaru EJ Series Chrome Polished Intake Valve - 37mm Head (+1mm) - SET of 8 Head Studs with premium organic friction materialsStem Diameter (mm) 6. 0mm Overall Length (mm) 104mm Head Diameter (mm) 37mm When creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the