301 crank, 400 block

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03-02-2006 | 02:07 AM

81turbota

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Joined: Feb 2006

Posts: 3

From: Yelm, WA

301 crank, 400 block

I am wondering if a 301 crank will bolt into a 400 block. I can get rods to fit if so, but i am trying to build a 4.12" bore, 3" stroke, Ram air headed smallblock of about 320 cubes to make any chev 350 run and hide. I have heard the 301 has the same 3" mains as a 400, but then also i have heard it has 2.50"s. Any help is greatly appreciated.

08-07-2008 | 06:10 AM

kurtdaniel

Full Access Member

Joined: Aug 2007

Posts: 28

RE: 301 crank, 400 block

Quote:

301 crank will bolt into a 400 block

Quote:

ORIGINAL: 81turbota

I am wondering if a 301 crank will bolt into a 400 block. I can get rods to fit if so, but i am trying to build a 4.12" bore, 3" stroke, Ram air headed smallblock of about 320 cubes to make any chev 350 run and hide. I have heard the 301 has the same 3" mains as a 400, but then also i have heard it has 2.50"s. Any car parts help is greatly appreciated.

i guess it needs the crank turned, rods resized and new bearings and gaskets before it will fit.