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Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: Bossbill on May 11, 2020, 02:46:20 PM

Title: 63-67 Hi-Po 289 Main Cap Bearing Bolts
Post by: Bossbill on May 11, 2020, 02:46:20 PM

More weird stuff from the parts closet.

The on the left is one I've seen in Hi-Po engines. But it's not like I've seen dozens of lower ends exposed.

A long time ago I procured some Main Cap Bolts (C2OZ-6345-A). These bolts have  paint or other weird finish on the stem. It rubs off.
But the bolt heads are a bit different. I'm more used to the version on the left. But the versions packaged in these boxes in the version on the right. Both have "FB" embossed on the head rather than the "F" I've found on regular 289s.

Title: Re: 63-67 Hi-Po 289 Main Cap Bearing Bolts
Post by: jwc66k on May 11, 2020, 04:44:44 PM

Ford leads the way - again. I found a couple of "FB" head markings in my C2OZ-6345-B pile (3 29/32 in), but with the standard 6 lines at 60 degrees for grade 8. Just wanted to add to the confusion.
Jim