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Old 08-03-2010, 08:17 AM
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Engine Help

My son is lookin at rebuilding a 350 motor, my question is its is probably a dumb one but can you put 327 crank & rods in a 350 motor? If possible what are the pros and cons of doing this project?

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Old 08-03-2010, 08:28 AM
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Quote:
Originally Posted by DARRINGMANESS
My son is lookin at rebuilding a 350 motor, my question is its is probably a dumb one but can you put 327 crank & rods in a 350 motor? If possible what are the pros and cons of doing this project?
Yes you can. 327 uses a 3.25" stroke Crank & Pistons with different compression height. 350 uses 3.480" stroke Crank.
Pros: Engine capable of higher rpm.
Cons: Less HP/TQ than the 350, Higher cost of valvetrain components for high rpm to equal the cheaper built 350's HP/TQ.
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Old 08-03-2010, 08:40 AM
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Ok thanks, one more question, as far as the rods, do we use 350 rods or 327 rods?
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Old 08-03-2010, 08:50 AM
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Originally Posted by DARRINGMANESS
Ok thanks, one more question, as far as the rods, do we use 350 rods or 327 rods?
They both use 5.7" Rods, the Piston Pin is located lower in the 327 Pistons.
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Old 08-03-2010, 09:08 AM
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"my question is its is probably a dumb one but can you put 327 crank & rods in a 350 motor?"

Only maybe. the early 327 had smaller 283 size bearings, 1968 and later 327 has larger 350 size bearings. Check first.
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Old 08-03-2010, 09:43 AM
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Quote:
Originally Posted by oldBodyman
"my question is its is probably a dumb one but can you put 327 crank & rods in a 350 motor?"

Only maybe. the early 327 had smaller 283 size bearings, 1968 and later 327 has larger 350 size bearings. Check first.
Glad you remembered that oldBodyman, as I had forgot.
I think the 62-67 327 Rods/Crank use the small bearing Journal = 2.00" compared to the 68up 2.100" Journal same a 350.
62-67 327 Crank Mains = 2.300"
68up Crank Mains = 2.450" same as 350
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