Quote:
Originally Posted by Ken Oikawa
Note:
Ford 406 has crossbolted maincaps. Some HP 390 and 428 could have lower skirk drilled to accept aftermarket maincaps. Only way to determine if its a 427 is to measure the bore.
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I actually found this today. But it actuall said match the casting number with the stroke. Unless the pistons/rods have been changed.