I'm betting NO and heres why: TF has ZERO control over the outcome. To illustrate: Some backyard builder (BYB) convinces TF to sell them a set of bareheads just like in the quote above. BYB receives them, hacks err ports them, does a valvejob that may or may not seal (nevermind the impact on flow), leaves the guides to tight or way too loose, and then fills them with offshore junk valves, springs etc.... BYB goes to the track if he even makes it that far and has terrible performance and possibly even a catastrophic failure. Everyone at the track or local cruise asks "What heads are those?" BYB responds "TF's new castings--I'll never use them again." Notice the word "castings"--BYB is being honest in a sense but the rest of the people only heard "TF's new cylinder heads". This is why I bet nobody other than the usual highend shops with the right contacts will be able to buy bare castings.
Besides YR/Madscientist, you admitted you've never seen them in person so why would you instantly think you could do better than TF already? J.Rob
