JLO Rockwell Questions

[RancherX]

A have a few questions regarding the JLO Rockwell in my ST/300/D. I have attached a couple pictures.

1. Is this the original ST/300/D engine?

2. Is this the correct air filter for it? WALBRO TILLOTSON HD WD CARBURETOR AIR FILTER HORN | eBay

3. Can parts for these engines still be obtained? If so, where? I would like to possibly freshen it up with some new rings and a hone.

Thanks for your help!

[jpswift1]

If this is the JLO/Rockwell 297 it is in fact the original engine that was installed in the Attex ST/300/D's. I don't know if that's the correct air filter or not because I don't use Walboro carburetors. Parts for these engines can be obtained pretty easily. There are NOS ones that pop up on ebay. These engines were very common, so don't be too concerned about parts availability.