Author Topic: Heavy duty main stud girdle.  (Read 5732 times)

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Offline tauruck

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Heavy duty main stud girdle.
« on: October 31, 2018, 03:07:30 PM »
Is this a viable option for my 351c motor?.
I can go thicker than what's commercially available
and was thinking maybe incorporating the caps into
the plate like you find on the modern motors.
Have the block align bored etc.

Just a thought and you all said there are no dumb questions right?. :cheers:

Offline 4-barrel Mike

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Re: Heavy duty main stud girdle.
« Reply #1 on: October 31, 2018, 04:19:34 PM »


Says it's from "72 GTS 351C OC Engine Rebuild - Page 1" on forum.grantorinosport.org but you have to be a member to get it.

Mike
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Offline Jack Gifford

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Re: Heavy duty main stud girdle.
« Reply #2 on: October 31, 2018, 11:57:00 PM »
Very robust. Very good. :-)
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Offline tauruck

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Re: Heavy duty main stud girdle.
« Reply #3 on: November 01, 2018, 12:15:04 PM »
Is that a yes????.

Thanks guys. The dude with the ally is waiting for me to reply. :cheers:

Offline SPARKY

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Re: Heavy duty main stud girdle.
« Reply #4 on: November 01, 2018, 01:44:29 PM »
Al Eshenbaugh's early Chrysler on 90+ % girdle looks like your top photo mills the main caps for a .035 clamp load no align boring  HE  cemented the block on nitro and/or met   we left some water for the block we are going to run on blown gas
« Last Edit: November 02, 2018, 12:15:38 AM by SPARKY »
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

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Offline Milwaukee Midget

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Re: Heavy duty main stud girdle.
« Reply #5 on: November 01, 2018, 02:09:32 PM »
Better to overbuild than to rebuild.  :cheers:
"Problems are almost always a sign of progress."  Harold Bettes
Well, I guess we're making a LOT of progress . . .  :roll:

Offline tauruck

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Re: Heavy duty main stud girdle.
« Reply #6 on: November 01, 2018, 06:56:04 PM »


Says it's from "72 GTS 351C OC Engine Rebuild - Page 1" on forum.grantorinosport.org but you have to be a member to get it.

Mike

Thanks Mike. :cheers:

Offline fordboy628

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Re: Heavy duty main stud girdle.
« Reply #7 on: November 02, 2018, 08:40:08 AM »
Mike,

Ford blocks, both OEM and aftermarket are notorious for "flexing" when using "power adders".

In addition to some sort of "girdle", consider filling the block water jackets (all the way, or perhaps leaving 1" or so open at the top) with either RokBlock or hydraulic cement.    Really stiffens up the block.    BUT, you MUST leave room for expansion with hydraulic cement, as it expands as it cures.   Both methods distort the block, so plan on final machining afterward.

 :cheers:
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Offline tauruck

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Re: Heavy duty main stud girdle.
« Reply #8 on: November 02, 2018, 10:15:04 AM »
Thanks so much. I'll need a lot of help on building this motor.
The only "weak" link is the block but it's the Australian thick wall casting.

I haven't had any news on the billet yet. I guess they are deciding if they
really want to cut the piece required out of a full size plate for some crazy
man with a dream!!!!!

ARP everything. Crower crank and custom rods. Ferrea valves, springs and related.
All Titanium components. I guess I'm as lucky as George P is rich. :-D :-D :-D

Offline SPARKY

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Re: Heavy duty main stud girdle.
« Reply #9 on: November 02, 2018, 01:20:20 PM »
AL's is fabricated out of 1"x2"  metal Bar welded then trued and fit on the mill.
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

Offline johnneilson

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Re: Heavy duty main stud girdle.
« Reply #10 on: November 02, 2018, 10:51:21 PM »
Ford, not V8
As Carroll Smith wrote; All Failures are Human in Origin.

Offline tauruck

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Re: Heavy duty main stud girdle.
« Reply #11 on: November 02, 2018, 10:55:51 PM »
I have to do what it takes. This is a one shot deal.
Thanks John. God Bless.

Offline tauruck

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Re: Heavy duty main stud girdle.
« Reply #12 on: November 05, 2018, 06:10:02 AM »
Will a 4" thick plate do the trick or can I go thinner (80mm)?.

Offline kiwi belly tank

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Re: Heavy duty main stud girdle.
« Reply #13 on: November 06, 2018, 02:34:59 PM »
Back in the 80's I built a lot of Clevo's in Aus & had a reputation for affordable fast survivers. On all the race engines I used 4 bolt steel main caps that were made, installed & machined by Lynx Engineering in Sydney. Four of my engines were in race boats, one was in my hydroplane, three were turbo'd & ran the notorious bridge to bridge race that is over one hour long with a brick on the gas pedal. One of them would even run the boat race on saturday & then the ski race on sunday. None ever had a block failure.
  Sid.

Offline tauruck

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Re: Heavy duty main stud girdle.
« Reply #14 on: November 07, 2018, 07:28:46 PM »
Sid, that's what my mate Derek keeps telling me.
4 bolt mains are rare here in SA but I can find the material
if I know what to get?.

Thanks for always telling it like it is. :cheers: :cheers: :cheers: :cheers: