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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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#16275 02/08/2004 1:28 AM | Joined: Feb 2004 Posts: 11 Junior Member | | Junior Member Joined: Feb 2004 Posts: 11 | This message is moved from HiPo where I accidently first posted.
Thanks gents. Those sites have narrowed it down some. The Inliners casting numbers site say my # 3850817 block is a 62-78 230-250 Chevrolet. My truck is a 68 GMC, so perhaps it is the original engine. Do the 230 and 250 engines have the same block and crank, with different lenght pistons? The stamped date code is 57323/804210295. So far I haven't found any details on the stamped code. My truck should have a 250, but I'm just trying to find out what actually in it.
And thanks for the warm welcome. | | |
#16276 02/08/2004 4:39 AM | Joined: Apr 2003 Posts: 22 New Guy | | New Guy Joined: Apr 2003 Posts: 22 | I do not now if the block and crank are the same or not, but if these engines are anything like the 235 and 261 chevy engines, the block and crank are the same. The higher displacement of the 261 is achieved by larger diameter pistons and matching larger diameter piston bores in the block. The 261 uses a much more substantial connecting rods as compared to the 235.
Jim
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#16277 02/08/2004 6:08 AM | Joined: Apr 2002 Posts: 1,571 Shop Shark | | Shop Shark Joined: Apr 2002 Posts: 1,571 | Get the "Chevrolet Inline Six-Cylinder Power Manual," available from Amazon and many other places. Good info for the L22 series 6-cylinder engines, whether stock or upgraded. My copy is already beat up. | | |
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