D.S.S. Racing 2-FX Series Forged Piston and Ring Set - 4.030 in Bore - 1.2 x 1.2 x 3.0 mm Ring Grooves - Minus 3.00 cc - GM LS-Series AFE54-13076D 3" Oval to 3" O

3" Oval to 3" O

Large stem for 5/8" hole is the most popular size valve stem used in racing wheels

And theres more

Stock Spindle Application: 71-94 Impala

D.S.S. Racing 2-FX Series Forged Piston and Ring Set - 4.030 in Bore - 1.2 x 1.2 x 3.0 mm Ring Grooves - Minus 3.00 cc - GM LS-Series AFE54-13076D 3" Oval to 3" OProduct Description: Piston and Ring 2 FX Series Forged Flat Top 4. 030 in Bore 1. 115 in Compression Height 1. 2 x 1. 2 x 3. 0 mm Ring Grooves Minus 3. 00 cc GM LS Series For more than 30 years, D. S. S. Racing has produced the highest quality pistons available. 10,000 D. S. S. powered engines and counting. The D. S. S. core concept has always been to produce a high value product that will provide superior quality and performance. Through the years