The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Heater core, A/C or non-A/C??

JimKshortstep4x4 · 03-20-2002, 10:54 AM

The inlet/outlets on the AC heaters are almost a foot long and they curve up to the corner of the heater box because the heater core mounts at an angle. The AC tubes are so long that there is a support on the side of the heater box to hold them in place.

The non AC heater core has the tubes coming straight out at the top and bottom and they are only about 3" long. If you looked at them side by side the differences will be very obvious.

Jim

03-20-2002, 10:54 AM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	The inlet/outlets on the AC heaters are almost a foot long and they curve up to the corner of the heater box because the heater core mounts at an angle. The AC tubes are so long that there is a support on the side of the heater box to hold them in place. The non AC heater core has the tubes coming straight out at the top and bottom and they are only about 3" long. If you looked at them side by side the differences will be very obvious. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC