need help with metal heater hose adapters

[heavychevy383]

help?!? hey guys, on some good advice from you all i recently purchased the metal heater hose adapters to replace the plastic twist lock jobs where the heater hoses connect to the engine side, my question is this; there are arrows (in/out) on the engine side & one of these metal adapters has what appears to be a "restrictor" in it-anybody know which side the one with the restrictor goes on? "in" toward engine or "out" toward heatercore/firewall? dont wanna blow nuttin up-lol -thanks

[heavychevy383]

Re: need help with metal heater hose adapters

ok-ssms5411 said restrictor goes on upper side-ya'll rock man! this forum thing has been a very new & very cool experiance so far-ya'll have saved me from making some very costly mistakes-awesome!