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Old 08-09-2002, 05:25 AM
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Question chevy engine identification

Need help on identifying a mouse engine I found in a 81 caprice. The story goes that thecar came into the world as a diesel and was a real lemon, to the point GM replaced the engine with a gas model. It is bluegreen in color. I am looking for id markings and there are several. Where exactly should the ones that identify the engine be? The bottom of the transmission pan says: GMC Hydramatic Metric and the car is half metric bolts and half SAE. Has a quadrajet and valve covers that bolt on like the old sbc with four screws. Has a ton of power. The 64$ question, what am I?? Please help if you can and thanks.

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Old 08-09-2002, 08:30 AM
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There should be a number(s) stamped on the block pad in front of the passenger side head. The last two or three digits should be letters. If you can get those it will tell what the engine is. Also, on the back of the engine, behind the left head there should be a six or seven digit number cast on the block. The casting number will basically tell you have.
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Old 08-09-2002, 09:34 AM
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I just found a website for sbc casting numbers. The casting number on the rear drivers side ledge below the head(where the transmission case meets the block, has a casting number of 14010202. The "moretec" www.MorTec.com website matches this to a 305 made between 80 and 81. The stamped number indicates day, month and plant of assembly. I have the information I need and have learned something.

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Old 08-09-2002, 10:08 AM
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More than likly its a 305 if its a factory replaced motor in an 81.Still OK w/ headers and the right cam.
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Old 08-09-2002, 04:12 PM
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Yeah, Im thinking edlebrock performer package. I been wanting to try the combo: 3071 intake, 3702 cam and 1 and 5/8 tube headers along with about a 600cfm carb. They recommend the package. I might go ahead and do heavier springs/lifter kit as long as Im at it or go with a good used set of heads 2.02/160 intake and exhaust respectively if I can find some on EBAY. It should be healthy enough and an interesting combination.
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Old 08-09-2002, 07:27 PM
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I'm not sure if a 2.02 intake will work with the 305's small bore. Anyone know for sure? Even if it did fit I think the wall would WAY shroud it.

The Vandal
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Old 08-09-2002, 09:38 PM
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There is no replcement for cubic inches. If you are going to put some good money on a Motor, do not waste your time on a 305. There as still thousands of 350's lying around. Save your 305 for your future tow vehicle!!
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