Speed Pro Piston Rings - 4.145 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension 016440NRRS Chevy X-Body 1968-74

Chevy X-Body 1968-74

Mopar Gen III Hemi Compressor

Dyna-Batts

2005-2008 Dodge Magnum

Longer adjusting slot so more than on belt size will fit your application

Speed Pro Piston Rings - 4.145 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension 016440NRRS Chevy X-Body 1968-74Speed Pro designs and engineers pistons to meet the most demanding street performance and racing conditions. In combination, we draw upon more than 100 years of Speed Pro engine mastery to enhance the piston ring and its seal. Our Speed Pro brand is recognized for being a winner in every form of racing, and is the proven horsepower leader in oval track and drag racing. Hell Fire Rings: Speed Pro Hell Fire rings, manufactured from a specially hardened