Did david explain or just tell you what it's gonna be. My first guess woulda been around the 380 cnc with some messaging. This would be an awesome TR build but I understand your reasons. 451 runner is a new one for me but I'm in the average build range. I'd love to watch this boat rip across the water when finished.
Better yet in it. Lol...

Yes this is a max effort deal with endurance in mind.

Not really sure what TR mean unless it stands for tunnel ram. Here is the head part number 19775090.

Tunnel ram is Just something I've always wanted to do with a bigger cube engine/engines. Nearly did prior to SC's but next builds will be 598 tall decks. Already had NOS 9.8 blocks and need 900 plus or might as well just take the pontoon out. Have a 12 meter I'm trying to get out of its tracks.

I have a 55mm with carrillo rods need to machine rods to clear camshaft 4.5 stroke just keep that in mind with the 60mm. Plus the roller bearings will take a bunch more meat out by the oil passage I had to bush my blocks to fix oil leakage problem but I am also .937 lifters.

My blocks are raised cam also. We are also putting bronze lifter bushings.

Well they wont hit the rods lol nice blocks.

i don’t think so. Someone specifically stated min CSA in the 20s was smaller than the most aggressive normal angle stuff.

Getrdunn check your pm

Re: Brodix sweet 16 This is what you saw from yellow bullet from my post a while back. I don't know if that's true or not.