That sure doesn't make sense. Wonder why your 5/8" goes to the top connection and mine goes to the bottom connection on the heater core? The heater box connections are definitely two different sizes. 64 to 67 Chevelles w/o air take the same GM part number heater core. Looking at the fittings that Mr. Gasket (among others sell), the 5/8" hose fitting fits the intake (1 3/4" long) and the 3/4" hose fitting ( 2 7/8" long) looks like the one in my water pump.
I think my 396 is turned around. The 5/8" should go to the intake and the 3/4" should go to the water pump. But that still doesn't explain why the heater core connections are different. Anyone else care to see if their 5/8" hose goes to the intake or water pump and which heater core connection (with and without air)? Dale > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 02, 2002 6:46 PM > To: [EMAIL PROTECTED] > Subject: RE: [Chevelle-List] Heater hose sizes and connections > > Dale, > I had to run out and check mine! Both my 67 SS 396, and my 67 L6 > Elky(note NOT LS6 :-() have 5/8" heater hoses going from the > water pump to the top "bung" on the heater and 3/8" hoses from > the intake to the bottom "bung"...both non A/C....seems to be correct > judging the size of the fittings. > Fred > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 02, 2002 7:26 PM > To: Chevellelist > Subject: [Chevelle-List] Heater hose sizes and connections > > Reading a post on TC concerning heater hose size and checking my > two cars, I'm in a quandary. > > I have a 67 327 Elky with factory air and a 67 396 SS without factory air. > > Elky: > 5/8" heater hose from intake to bottom bung on heater box > 3/4" heater hose from water pump to top bung on heater box > > SS396: > 5/8" heater hose from water pump to bottom bung on heater box > 3/4" heater hose from intake to top bung on heater box > > I've had the 67 SS running this way for any number of years but I > just got the Elky last fall and haven't replaced hoses yet. It > seems the hose sizes and locations are just the opposite between > the two cars. Does the A/C make a difference or is that one's a > small block and one's a big block?
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