Sealed Power Performance Piston Rings - 4.124 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Moly - 8-Cylinder RG10004 PRO 1 aluminum cylinder heads

PRO 1 aluminum cylinder heads for small-block V8's deliver advanced airflow technology at an unbeatable price

Each gear has a shaved finish to minimize backlash and run out

Small wheels on the bar let it slide under the car more easily

1971-1972 Dodge B100 Van

1973-1974 GMC P35/P3500 Van

Sealed Power Performance Piston Rings - 4.124 in Bore - Drop In - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Moly - 8-Cylinder RG10004 PRO 1 aluminum cylinder headsProduct Description: Piston Rings Performance 4. 124 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Moly 8 Cylinder Sealed Power engine products are application engineered components, including pistons, piston rings, engine bearings, oil pumps and lifters. These proven replacement parts are the result of product development efforts, dedicated to putting only the absolute best on the street. Our engineers design and validate the