how i got it out and i tried to put the new one in but i can't get the copper pipes into the holes or i can't get the piece the hold the core to fit snug.. help please..

 

When I had to replace mine the same thing happened. I went to Trak Auto and bought one. The item # was right and it matched my old one good, However, it was slightly different, and I returned and went somewhere else and got the right one.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

 

sometimes those tubes arent lined up exactly right and you may need to bend them ever so slightly. i'm talking no more than an 1/8 of an inch or so, because 1) you might kink/crack one of them, or 2) screw up the joint where they are brazed to the core, you'll have to do it all over again. does it match the old one?? I remember having problems getting mine in when I did it, isnt there some type of little bracket that holds the core in? I might have left that out, cant exactly remember. all I know is that it took a little coaxing to get it in, she was prude.

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85 Z28- 350, Comp 262, Edelbrock Performer intake, Edelbrock 600 cfm carb and Edelbrock cat back, Summit headers and vette servo
-JVC, Eclipse, Pioneer, MTX, Phoenix Gold, Planet Audio

 

ileft out the braket and got the heater core in. but now i have more problems my dash vents don't work anymore nothing comes out of them cold or hot. what is the sail like thing bye the heater core and what does it do? where is it suppose to be positioned?
thanx