Chevy 327 with a 3.48" stroke??? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 02-08-2003, 01:37 PM
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Question Chevy 327 with a 3.48" stroke???

I have a 327 out of a 67 Impala with 462 double hump heads. Is it possible to install a 350 crank to give the 327 a 3.48" stroke? The normal stroke on a 327 is 3.25". Since the bore is same(4.000") and the rod length is the same(5.7") it would seem possible to put a 350 crank with 3.48" stroke if there is clearance.

If anyone has knowledge of this please let me know.

thanks
James <img src="graemlins/pimp.gif" border="0" alt="[pimp]" />

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Old 02-08-2003, 02:17 PM
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you will have a 350! and you have to use 350 pistons
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Old 02-08-2003, 03:15 PM
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A 67 327 should be a small journal crank and all 350's are large journal. You would have to turn the main journals down to fit. Also the 327 rods would for small journal. If you use 327 rods you would have to turn the rod journals down also. You could use 350 rods and not have to turn the rod journals down.
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Old 02-13-2003, 01:47 PM
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depending on you block you might have a large journal 327 wich is the same journal as a 350 and you will just have a 350 if you swich the crank. would be something to check before you had any machineing done.

[ February 13, 2003: Message edited by: limey ]</p>
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Old 02-22-2006, 08:59 PM
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Correct, I had a large journal 67 327" motor with a cracked block, the crank was perfect, I put it in a 4 bolt 350 block along with the 327 rods, and I now have a 4 bolt 327" something Chevy never made.
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Old 02-22-2006, 09:06 PM
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This thread is 3 years old!
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Old 02-23-2006, 10:11 AM
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Hey, you read it too, I just joined; what's your excuse??
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Old 04-23-2006, 10:43 PM
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I just joined too. There is no other excuse
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Old 04-23-2006, 10:54 PM
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why? if your going to spend the money just build a 350 an make more power
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Old 01-12-2007, 10:52 AM
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Quote:
Originally Posted by timnova350
why? if your going to spend the money just build a 350 an make more power

A large journal 327 with a 350 crank IS a 350. You will have to use the 350 pistons as well as the 327 skirts are longer and will hit the crank with the longer stroke.
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