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Quote:
Originally Posted by Ziggster
I'm no expert, and I'm sure having one honed with a toque plate gives piece of mind, but he simply doesn't have one. I trust him based on feedback from those that have used him in the past and I'm comfortable with any potential risk. I found this post here on HAMB, but I'm sure there are others that say the opposite.
https://www.jalopyjournal.com/forum/...gines.1055001/ |
I'm no expert either, but I rely I expert opinions. Different builds may require different tools. My motor is at 3 3/8" +.030. That is a big bore. A flathead deck is thin and there is no doubt in mine or my builder's mind that a bore that big with a deck that thin it needs a torque plate.
I pulled a quote from the the thread you copied. I feel a flathead block falls into the same category as a Ford 302 block in terms of this.
Think about it. There is a reason why Ford added 3 more studs to the block when it went to 239 c.i. A cast iron head clamping down on that deck with one big hole and many smaller holes on a thin casting is going to move.
from what I have seen the lighter the block the more it needs a plate. A 302 ford will move enough to mesure but a big block 460 its hard to see. The ones I did we bored without the plate on a rotler bar then put the plate on the 302 pulls around the head bolts about .0015ish big blocks you could berly get .0002