61" Overhead Valve 3-5/16" Piston Set .080 Oversize

Piston set with 3-5/16" bore has a 7.0:1 compression ratio and is .080 oversize. Set includes a piston ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.
**NOTE: Run engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears, in order to properly break-in new pistons and rings.