NPR American V8 Engine Ring Series Piston Ring Set - 4.070 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder E4-MCS-0050A00 The filler neck is raised

The filler neck is raised to help prevent dirt and debris from falling into cell

Billet aluminum throttle bracket securely mounts and holds throttle cable in place

Chevy Corvette 1957-74

It is designed for x-member clearance in '78 and up F bodies

A degree bushing is essential to getting your valve timing correct when you install and degree your cam

NPR American V8 Engine Ring Series Piston Ring Set - 4.070 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder E4-MCS-0050A00 The filler neck is raisedProduct Description: Piston Rings American V8 Engine Ring Series 4. 070 in Bore 1. 2 x 1. 5 x 3. 0 mm Thick Standard Tension Steel Nitride 8 Cylinder NPR Piston Rings is a world leader in the production of piston rings. A long time supplier for OEM applications, they also produce a line of performance piston rings designed for top tier performance and reliability. With performance piston rings for a wide range of engines, including popular V8's from