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Old 04-24-2003, 12:28 PM
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Post 302 chevy

I'm building a block 302 If I put a 327 crank what will the cubic be . The bore and stroke of a 302 and 350 the same so what will a 350 block with 327 crank be cubic.

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Old 04-24-2003, 02:48 PM
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okay we`ll explain this to you one more time. a 302 had a 4.001 inch bore, and a 3.000 inch stroke, the 327 had a 4.001 inch bore, and a 3.250 inch stroke, the 350 has a 4.001 inch bore, and a 3.480 inch stroke, a 327 crank in ANY 4 inch bore block will be a 327. and try this, i`ve shown you this many times, cubic inch calculator,
bore X bore X 0.7854 X stroke X number of cylinders = Example: 4.001 X 4.001 X 0.7854 X 3.480 X 8 = 350, if you need the bore and stroke to all small block chevies, there all listed on Mortec.com
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Old 04-24-2003, 02:50 PM
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302= 4in bore and 3in stroke
327= 4in bore and 3.25 stroke
350= 4in bore and 3.48 stroke

they will both be 327ci

1967 302 had 2.3 mains (small journal)
68&69 302 had 2.45 mains (large journal)
62-67 327 had 2.3 mains
68&69 327 had 2.45 mains
all 350 had 2.45 mains
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Old 04-24-2003, 03:21 PM
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Thank's for Info Guy's. Lot of help!!!
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Old 02-06-2004, 04:01 PM
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302 Chevy

Bore is not important at this moment. Speaking of which it is the momentum of the Chevy 302 lower assembly which was so appealing.

Notice that a crankshaft from a 283 has a stroke of 3.00". This is, if any, the crankshaft needed to obtain the correct discplacement, while maintaining a proper compression ratio.

But keep in mind this engine is virtually useless without the proper transmission or gearing.

I think?
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