Machine Shop Questions
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Mountain Pass
Joined: Apr 2016
Posts: 212
Likes: 46
From: North Dallas
Machine Shop Questions
Guys,
I need to make sure I am not way off base an looking for something that no longer exists.....
I have called several machine shops to get quotes for my 69 429 Thunder Jet to get the block bored to .030 over and decked. I thought this to be a normal request for a good rebuild...
I also asked if they had the torque plate for a 460 Ford and all of them said no. This appears to me as a red flag for the shop being able to do the job right.
I am wrong in thinking that I need the torque plate to get the block machined/honed correctly?
As a note most if not all the machine shops I talked to focus on Chevy, Mopar & Cummins. I did not find a Ford Machine Shop... If you all know of one in Tx please tell me who I should call.
I need to make sure I am not way off base an looking for something that no longer exists.....
I have called several machine shops to get quotes for my 69 429 Thunder Jet to get the block bored to .030 over and decked. I thought this to be a normal request for a good rebuild...
I also asked if they had the torque plate for a 460 Ford and all of them said no. This appears to me as a red flag for the shop being able to do the job right.
I am wrong in thinking that I need the torque plate to get the block machined/honed correctly?
As a note most if not all the machine shops I talked to focus on Chevy, Mopar & Cummins. I did not find a Ford Machine Shop... If you all know of one in Tx please tell me who I should call.
Butt-Head
Joined: Apr 2004
Posts: 9,466
Likes: 2,944
From: Reed Point, MT
I will admit to not knowing much......
But for the literal 50+ engines I've put together (all stock or mostly stock - nothing exotic or for race-use only), the machine shops I've used over the years (3 of them) have never torque plate bored or honed any of them and not one has experienced any kind of failure related to that "misstep".
Is it necessary? Obviously not since machine shops do their jobs every day without that step and millions if engines have run and do run just fine without.
Would it be great to have it done? Sure, extra insurance of accurate bore work just like having the heads on would be great.
But for the literal 50+ engines I've put together (all stock or mostly stock - nothing exotic or for race-use only), the machine shops I've used over the years (3 of them) have never torque plate bored or honed any of them and not one has experienced any kind of failure related to that "misstep".
Is it necessary? Obviously not since machine shops do their jobs every day without that step and millions if engines have run and do run just fine without.
Would it be great to have it done? Sure, extra insurance of accurate bore work just like having the heads on would be great.
Tuned
Joined: Jan 2019
Posts: 308
Likes: 27
From: Fallout Shelter
I reiterate what cleatus12r said. Don’t walk away from a reputable engine shop just because they don’t bore with plates. That’s just silly. I actually bore my own blocks (including 460’s) with an ancient Van Norman 777 “portable” boring bar. Never experienced any problems on any of my mild street builds. I don’t build race engines but the funny thing is my portable boring bar came from the most reputable dirt track race engine shop in the area.
Hotshot
Joined: Jul 2020
Posts: 10,582
Likes: 2,678
From: Near Salt Lake City
Torque plates were not around until the eighties or so
If you want one used on your 7.5 you might have to buy one and hand it to them
Machine shops look for low hanging fruit like everybody else
They can't make a ton of money off your 7.5 as quick as they can doing just about anything else
Look for an old fart machine shop or a speed machine shop
Maybe Dave will chime in
If you want one used on your 7.5 you might have to buy one and hand it to them
Machine shops look for low hanging fruit like everybody else
They can't make a ton of money off your 7.5 as quick as they can doing just about anything else
Look for an old fart machine shop or a speed machine shop
Maybe Dave will chime in
Cargo Master
Joined: Oct 2020
Posts: 2,710
Likes: 805
A torque plate makes a difference on the 460 engine but not a giant one. You'd think that it would because there's 4 bolts that are tightened to 140lbs but it doesn't seem to distort nearly as much as similar engines like a Big Block Chevy mostly because the bolts screw into bosses that are tied into the side of the the block instead of just going through the deck.
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