350 utility lp head/ pistons

[Rustmonger]

Folks, as we are about to head into winter, I am considering pulling down my 350 utility for overhaul. I have a running tractor and a parts tractor, both were originally 350 utility LP's. The parts tractor was "converted" long ago to gasoline(Very crudely), and the side of the block was very roughly hand stamped "175". I know almost nothing about it's history. The running tractor is still on lp, and very nearly 100% original. I would like to begin by scattering the parts tractor to see what parts are usable, but am unsure how to tell for sure whether the head and pistons are actually LP, or something a previous owner cobbled together. Is there a sure fire way to identify the pistons and head as being LP? Images or casting numbers would be very helpful, that way if the parts tractor is LP I can have the head into the machine shop.
Thanks! jeff

 

[D Slater]

On left side of page in classic view click on parts and pieces. Put 450 LP head in search box. Look how the head is shaped over the intake and exhaust ports. 350 LP head will also look almost like that. other heads won't have all the dips.
Need a piston number or picture of the top to have any hope of piston ID now.

 

[Rustmonger]

Thanks!
I just checked my tractors and compared them to the image of a 175 head on ebay, and the 450 lp head on this site. It appears to me that both of my heads are LP, as the head bolt bosses stand isolated from the machined area of the valve cover gasket machined area. I can pull my parts head and get it into the shop and be that far ahead, when I do so I will post an image of the pistons if they look usable. I sure appreciate the lead. jeff

 

[CenTex Farmall]

Be advised that the valves for the 300/350 LP head are NLA. I ran into that issue a month or so back while working on a 300LP motor.

It had sat forever and the OE intake valves had slight surface rust spots on the stem. Under close inspection after being cleaned off I could see that pits were developing. I ended up finding some longer valves of the same stem diameter and cutting them down on a lathe.