I have been looking around for exact information on these cores but I am getting a lot of conflicting sources. I would like the dimensions of a '77 pontiac bonneville (no air) heatercore. I believe that this is the 2-199. Anyways, my final decision will also depend on the condition/size of the inlet/outlet and the amount of work required. Please help me out a pic would be great too if anyone has one.
I have seen that, but is it the end all for heatercore info? I have found more than one place that does not even agree on the size of the inlet/outlet. Do those measurements include tanks too?
those measurements do not include the tanks on the 2-199 -- those are just for the finned core area. with the tanks, the usual 2-199 is around 10 3/4" tall. Note that was for the "usual" one -- there are several different companies that make heatercores and there is usually some minor difference in the size depending on which company made the core. there are also differences in the tubes - some use tubes that are fairly round where the tubes enter the tanks but one of the tubes will be bell-shaped on the end, others just use a full diameter straight tube and then crimp it down to an oval shape where it enters the core. the one with the bell-shaped tube on one side is much easier to mod than the one that has the oval crimping job at the tanks. if you get one the 2-199 cores that has the bell shaped end on one side, it can be cut off and both sides will then be 5/8" - the bell section goes from 5/8" up to 3/4" if you want to know a bit more about the '77 b'ville cores (the 2-302 & the 2-199) try this one: http://www.ocforums.com/showthread.php?t=304440
np. if you have a restrictive block/lower flow pump/multiple blocks in the same loop, etc. you should take a look at the 2-342 as well. It is a single pass core (as opposed to dual pass like the b'ville) so it has a very low hit to flow rate. it is large enough to take dual 120mm fans (it has a core almost identical to the one on the 2-199). However, most of the 2-342 cores have larger overall dimensions than the 2-199 due to the large, rectangular style tanks they use for them. still, it is a very good core if you have the space for it. the full list of manufacturers for the 2-342 and the part number used: ARS 9090 CUC 9090 DELCO 3025322 EVERCO 2236 FEDCO 2-342 GDI 399090 MURRAY 279140 4 SEASONS 94615 STANT 90900 the version that is easier to remember = '70 chevy C10 pickup w/ac the tubing on it is fairly flaky but a mini-tubecutter, a hacksaw or a dremel can fix that.
