[PANAVIA]

I would conserve the metal and bore only what you need, that way you keep the block longer, after all this thing has survived this long !!!!

The marginal CI between 410 and 428 (< 5%) is not (IMHO) worth the life shortening possible block destruction.

tell them it is a full 7L ford. --you will be mostly correct.

You would not beleive how many 390FEs we see here at the ranch that were sold to someone as a 428, or a CJ.

Happens a few times per month.

Steve