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Joined: Aug 2008
Posts: 87
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Joined: Aug 2008
Posts: 87 |
help i need a set of main bearings .040 under for a 270 gmc i have checked the usual places nada thanks jay
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Joined: Sep 2001
Posts: 28
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Jay,
I've got a good supply of .040 mains here if that helps. Send me an email: stovebolt651@yahoo.com
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Joined: Nov 2006
Posts: 217
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Joined: Nov 2006
Posts: 217 |
Slim,
Do you have any 0.040 under rod bearings? We're trying to use my 302 GMC rods in a 192 cid Ford tractor engine. That will let us have some JE domed piston made .
Ron
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Joined: Sep 2001
Posts: 28
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Ron,
I will look and see what I have. Just to be sure, do you need the wide or narrow bearings?
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Joined: Nov 2006
Posts: 217
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Posts: 217 |
Slim,
We're going to narrow the rods to fit the Ford crank so it shouldn't matter.
Ron
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Joined: Nov 2006
Posts: 217
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Joined: Nov 2006
Posts: 217 |
Bit of info: We've decided to have a set of 7" Crower rods made with the 1.88" Honda rod journal. That way we can offset grind the crank for another 3/8" stroke.
Ron
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Joined: Jan 2005
Posts: 2,123 Likes: 3
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Eeek!
Pushing the envelope, yes?
Love it!
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Joined: Sep 2004
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1000 Post Club
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That's what they have been doing to Nascar engines for a while.
Use the Honda size journal,smaller journals = lighter weight crank,& have a larger radius so the crank is stronger that way.
MBHD
12 port SDS EFI 
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Joined: Nov 2006
Posts: 217
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Joined: Nov 2006
Posts: 217 |
Exactly. This engine is going in a pulling tractor. They can't exceed 2600 rpm during the pull.
It's kinds fun to hot-rod these old design, inline engines, especially when the owner wants to win and has a good budget. It sure makes you think and figure out ways to make power without much to work with.
Ron
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Joined: Jul 2007
Posts: 376
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Back in the 90's a friend of mine worked on a team that built an M Farmall that was seriously worked. All I remember is it ended up running a 650 holley on a 12" stack for best power. It set records. They spoke in a whole different language it seemed like at the time.
"The first rule of overkill: You can never have too much overkill."
"Overkill is underrated."
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