O.s. 10 / 15
 

I build so many giant twins I want to build a baby twin. for 2 O.S. 10s or 15s. I dont think they make these anymore. I would prefer new but used if I have no choice . Any ideas ?
Thanks

The .15 LA is still available, and is a good engine. Here's the stock number and MSRP.

OSMG0016 11532 15LA NON-RING 10G 871 US$109.99

These parts can be ordered through any hobby retailer who sells O.S. Max engines and accessories.

Bill,

I have two OS .10FSR engines. I know how old these are but I need a screw set, OS #21113000. Do any of the more recent OS .10 engines use the same size set of screws. If not, can you please tell me what size are the head screws and the backplate screws for the .10FSR engines.

Thanks,
Mike

Screw sets for the .10 FSR have not been available for years. We don't have a list of screw sizes, but head bolts for that engine should be M2.6x10 or so. You can get proper-size bolts from almost anyone who sells metric nuts and bolts. We can visit our True Value hardware store for a lot of bolts. You can also try a fastener seller.