The Stovebolt Site Forums The Shop Area Engine Shop heat valve spring gone n bust !!!

Have just got the chevy out from its winter storage and having checked things over I discovered that that the thermostatic spring that controls the heat valve on the exhaust manifold has given up the ghost and I need a new one, I see chevs of the 40's carry one for chevs up to 1954 the thing is I am running a 1955 235ci bolt, would it be ok to use this spring if not can anyone tell me where I find one to suit a 55 engine ? and in the meantime bearing in mind that I live in the UK and 55 235 parts are a bit thin on the ground what position should the balance weight be in to for normal driving as it may be a while untill I can source a new part.
Regards RR.

Welcome to the 'bolt. I believe they are the same. The Filling Station shows them being the same from '37 to '65.

You will have to bend it tighter or looser alittle to get it to work right, after you put it on than start the engine and you'll see witch way to bend it you'll have to take it off and carefully with a pair of pointed pliers in the center coil it tighter or open it up alittle so it will close the heat riser at the right time,I just got done doing mine ,it took a few times to get it right but now it closes as the temp gauge gets around 110-120 degrees.
I have a 216 in my truck but I also have a 54 235 sitting in the garage and they both have the same coil on the heat riser
Pete

Thanks for the info Guys will order one right away and hope it will get to me eventually, if the planes start flying in this part of the world again.

RR.