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post #1 of 4 (permalink) Old Nov 11th, 02, 11:55 AM Thread Starter
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I am replacing the heater core on my 67 Camaro RS. Using the VIN # What do I look for to get the size of mototr that came with the car. Also where are the rearend stampings thatindicate the size of rearend "ratio"
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post #2 of 4 (permalink) Old Nov 12th, 02, 01:35 AM
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There just might be an original sticker on the engine valve cover with the size shown.

If not, there is an engine code stamped on the pass side front of engine between the cylinder head and the water pump. The letter code is needed to find the size of engine, usually, two or three letters.

A simple way of telling which model of core to get, is to look at the heater core pipes in the firewall on the pass side. If they are close to the engine, then the engine is from the Small Block Chev family. If the pipes are in the middle of the heater, as directly above the subframe mount, then the engine is from the Big Block Chev family.

Rear axle ratios can be decoded from a stamped letter code from the front of the pass axle tube. There might be a stamped metal tag attached to one of the differential cover bolts stating the axle ratio....Maybe.

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post #3 of 4 (permalink) Old Nov 12th, 02, 05:03 AM
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Also to figure out your rear end numbers, go to www.camaros.org and start reading, there are tons of pages of info. on first gen. camaros. There is a section on decoding rear axle numbers there, and how to locate them.
good luck.

69RS 350/255 LM1, Balanced, TRW forged pistons, .30 over, TH-350 auto.,
Dover White,Blue Vinyl top, F&R spoilers,pdb, close ratio ps,am/fm,3.08 Posi., A/C, fold down rear seat
My RS www.brainerd.net/~knudsen/69RS
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post #4 of 4 (permalink) Old Nov 12th, 02, 04:32 PM Thread Starter
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Tkanks I'll try that out.
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