I removed my a/c and p/s, and am wondering if i should just cap off the heater lines on the engine and radiator or just leave them hooked up. does anyone sell silicone heater hose like the samco ones for the radiator? does anyone cap off their lines?

 

I would strongly reccomend you keep the heater working. Even if you wont need it much, it will come in handy occasionally, and there is not disadvantage at all of keeping them. I peronsally consider removing the heater a safety hazard since the defroster doesnt work anymore.