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#58155 05/28/10 11:01 PM
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help i need a set of main bearings .040 under for a 270 gmc i have checked the usual places nada thanks jay

badsix #58311 06/07/10 12:45 PM
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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

SlimSix #58313 06/07/10 05:42 PM
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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

Ron Golden #58325 06/08/10 06:47 PM
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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?

SlimSix #58333 06/09/10 12:55 AM
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Slim,

We're going to narrow the rods to fit the Ford crank so it shouldn't matter.

Ron

Ron Golden #58712 06/24/10 10:53 PM
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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

Ron Golden #58717 06/25/10 12:13 AM
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Eeek!
Pushing the envelope, yes?
Love it!

panic #58719 06/25/10 12:20 AM
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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


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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

Ron Golden #58723 06/25/10 02:19 AM
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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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