OldIHC

Anyone out there have a source for parts for a Lycoming 4SL engine using in a S26 IH Truck? Need a piston at least and maybe a few other things.

Thanks

Egge Machine in Santa Fe Springs, CA lists intake valves for the 4SL: https://egge.com/part/egg-1300-v319/
If you call their tech support with the dimensions, they may be able to help with matching the piston with something they already stock. Piston rings should be easy.