![74 Overhead Valve Piston Set Standard Size 1941 / 1977 FL 1971 / 1977 FX](http://widowmakersboneyard.com/cdn/shop/products/11-0307_{width}x.jpg?v=1588429486)
Piston set 3-7/16 bore standard size with compression ratio of 7.5:1. Set includes Hasting 3 piece rings 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. Bore size is 3.4380 -3.4385 inner diameter.
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