Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 16.8 cc 2120013 while at the same time 88450 Chevy Small Bock Gen Size:Medium AERFCM4025

while at the same time reducing exterior sound level and interior resonances

Should be used with stacked spring divider HYP18DS100 (sold separately)

Disable circuit to prevent shifting during the burnout

Clear Hear speakers and dynamic noise canceling mic for best audio performance

rope-lay copper cable for best current carrying capabilities

Speed Pro Speed Pro Piston Forged 4.280" Bore 5 64 x 5 64 x 3 16" Ring Grooves Plus 16.8 cc 2120013 while at the same time 88450 Chevy Small Bock Gen Size:Medium AERFCM4025 while at the same time reducing exterior sound level and interior resonances Should be used with stacked spring divider HYP18DS100 (sold separately)