4.000 inches -- same bore size as a Chevy 350, the difference is a 327 uses a 3.250 stroke and the 350 uses a 3.480 stroke.
No. The 327, is a small block.
4inch bore 3.25 stroke formula bore x bore times stroke times .7854= cid
327
If nothing else you can check the stroke. The 283 had a Bore & Stroke of:3.875 in × 3.00 in The 327 had a Bore & Stroke of: 4.000 in × 3.25 in Remove a Spark Plug and check the stroke. There is also a casting number located on the block that can be used to identify the block. Click the link.
Plugs? About .032.
350 and a 327
327 is a Small block. 265 thru 400 were small blocks but to confuse you more the 396 thru 454 were big blocks. Unless you really want to be confused, I won't mention the 348 was a big block. :)
200
It is a 325 CID engine block. ( New design ) Bore and stroke is 3.779x3.622 inches.
yes
Normally a 327 small block that has been rebuilt with a 30" overbore