5.4 crankshaft

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Sep 13, 2005 | 01:44 PM

Marcusm

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5.4 crankshaft

I tried searching for this and couldn't find an answer. I am wondering if the crankshaft in a 1999 5.4 2V Expedition is forged steel? I'm thinking it's a steel crank in all 5.4 trucks, but again not 100% sure.

Sep 13, 2005 | 02:34 PM

l-m tech

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From: duncan oklahoma

the crankshaft from a windsor has 8 bolts holding the flywheel on and is forged.the 6 bolt romeo isnt.

Sep 13, 2005 | 03:29 PM

LxMan1

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From: Louisville,Ky.

Welcome. I think only the Cobra 4V engines have a forged steel crank. Possibly the Lightnings too. Unless you are turning over 6000rpm, the cast crank will work fine.

Sep 13, 2005 | 03:46 PM

Marcusm

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Thanks for the info. The motor was just recently pulled out. It is almost ready to go the machine shop, but still waiting for the bottom end to be broken down. The motor it self will end up being a procharged 4V. I want a very strong bottem end.

Sep 13, 2005 | 06:35 PM

ford390gashog

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you can not bore that engine over .020 just to let you know. most can not even be rebuilt.

Sep 13, 2005 | 11:13 PM

LxMan1

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I would look into a Lightning crank since it is going to be supercharged. You might check out dssracing.com. They have many good parts for these engines.

Sep 14, 2005 | 09:20 AM

Marcusm

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The motor originally had 32,000 miles, dropped a valve. Had walls checked and they are good to go. The crank (eight bolt flywheel) I found out from the shop, is a steel crank. Great condition. Now that I Know the block is standard I can order my other internals. Thanks for the website, I'll check them out.

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Sep 14, 2005 | 09:17 PM

ford390gashog

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From: Brentwood,CA

Quote:

Originally Posted by fordiesel69

Why can't you bore them????? If not, can you bore big and resleeve down to the correct size?

because there is nothing there to bore out. these are not the old enignes which could be bored .060 over these can barely take a .020 and even then you risk going to thin.

Sep 16, 2005 | 07:48 PM

#10

krewat

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From: Long Island USA

Quote:

Originally Posted by fordiesel69

Why can't you bore them????? If not, can you bore big and resleeve down to the correct size?

I'm sure they can be sleeved, but the last time I looked, even a V10 block was less than the machine work for 8 sleeves at something like $100/sleeve.

Ford list for a 5.4L block is $555.75 (fordparts.com $408.48), V10 is $975.72 (fordparts.com is $717.15)