To put a cap on this, it morphed backwards back into a 390 and using the C7AE-A heads from the original 410 I started with.
Original block (cleaned, machined, .030, cam bearings and freeze plugs installed), crank, (checked out good) and rods from the 390. ARP rod bolts, reconned rods, Silvolite hyper flat top pistons, cast iron "S" intake and Comp Cams 268-H camshaft.
Will hopefully be assembling it in the next couple of weeks.
Headers will be installed after cam break-in.
This engine is going back into my friends '73 F250 2wd that it originally came in.
Sorry for the anti-climactic end to this thread. I appreciate all who posted on it and to those who simply clicked on and viewed it.
Hope everyone has an awesome new year!
