Honestly, not having the balls or the pockets after it pops. lol
The bottom end is good, parts are proven well over 500whp. The rods are somewhat old tech IE pieces and in the last year or so some companies put out some more impressive ones. not saying they are junk just saying alot in the 1.8T world changed recently. (3-4 years ago 3071’s and 76s were god and 400whp were awesome) Boyd’s Motorworks did the machine work and put it together. Balanced the rotating ass. and they have been doing some great work for ever. So I think it will hold well.
the head is a well ported (large port stock head to begin with) +1 valves, Schrick cams and solid lifter conversion kit. Its one of 2 or 3 heads I heard of built as well as this running around currently.
the 6262 should pump plenty for 600whp around 35psi or something… at least with evo guys. I havnt heard of many if any 1.8t guys running this yet with proven results.
the parts list is there, the build quality is I would say there :ninja… it just takes nutts to wick it up and keep asking it for more, more, more.
I think the highest hp 1.8t is a stroker making 750 or something irc. i dont really remember.
Bingo. 1000’s or 1200’s if needed.