351W Main Caps
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Joined: Dec 2002
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From: airdrie canada
351 main caps
i oiled mine, both rebuilding books i have say to do that, in fact i went as far as to fill the holes in the bearing journals, can't over do it on oiling a new engine, when you get everything together make sure you prime the whole system, use an old shaft from a distributor and turn it in the direction of your engines firing order, which should be CCW.
Elder User
Joined: Sep 2003
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From: Louisiana
On all your bearing surfaces, make sure the contact side between cap and bearing are clean and dry when assembling. Lube only the bearing to journal side. The back side uses friction to prevent slippage. I use a mixture of STP and engine oil(50/50) for build up. Helps hold the lube in place until start up.
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Joined: Mar 2004
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From: Spokane
Pry on the crank forward and backward and then hold forward while you torque to align the thrust bearing.
Last edited by fordberg; Apr 25, 2004 at 03:09 PM.
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Joined: Mar 2004
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From: Spokane
Yes. It is designed to keep the crank from flying thru the radiator when the brakes get slamed. 
It's something you don't think about very often. Imagine needing to stop a 60 pound crank from heading down the road when you slam on the brakes at 50 MPH. The stop and go forces of the truck put pressure on the sides faces of the bearing.
It's something you don't think about very often. Imagine needing to stop a 60 pound crank from heading down the road when you slam on the brakes at 50 MPH. The stop and go forces of the truck put pressure on the sides faces of the bearing.
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Joined: Nov 2002
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From: Close to Mr. Anderson
Originally Posted by DT 466Man
I have an 87' 351W HO 4bbl i am rebuilding it to put it in my 90 ranger
What are the main cap torque Specs?
What are the main cap torque Specs?
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From: Close to Mr. Anderson
My 92 dually smoked a honda....with coffee can exhaust!Anyone know why PAW stopped making the 427 windsor and changed too a 418/ 420 windsor?
Last edited by termyt00; Apr 26, 2004 at 12:13 AM.
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From: airdrie canada
351w main caps
$75! lucky dog, i had to wait almost a whole year to get mine, man was it frustrating, shop had ordered them, then after several months, they said NLA, but they had a set of rebuilt 96 mustang heads for $425.00, then several months later they finally had those done but the price was now $1198.00. i then had another place check, they said it might take several months, and then they said NLA, i then found them on my own. man what a load! 
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