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  390 block work

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Author Topic:   390 block work
shoe
Gearhead

Posts: 146
From: midwest
Registered: Feb 2001

posted 12-17-2001 08:43 PM     Click Here to See the Profile for shoe   Click Here to Email shoe     Edit/Delete Message   Reply w/Quote
I'm about to have a tired but rebuildable 390 block go to the machine shop, for the usual machine work. A long time ago I read in one of my Mustang magsazines,that I believe somwhere near the oil filter mounting area of the block, you should drill out something for better oil flow or something of that nature. I'm sure my shop won't know this unless there told(too many bowties done there )a few 302 & 351W but not many 390 ,Can anyone give me advise on this or any other machine tips? ,Shoe

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lyle29464
Gearhead

Posts: 718
From: Mt. Pleasant S.C.
Registered: Mar 2000

posted 12-17-2001 10:13 PM     Click Here to See the Profile for lyle29464   Click Here to Email lyle29464     Edit/Delete Message   Reply w/Quote
Im not sure on this but I think the oil pump has a larger output than the blocks input hole. They ream this area to reduce the miss match and eliminate some turbulence

[This message has been edited by lyle29464 (edited 12-17-2001).]

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Moneymaker
Administrator

Posts: 18575
From: Lyons, IL, USA
Registered: May 99

posted 12-18-2001 10:54 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Also we always champhered the oil filter bypass hole and the main bearing feed holes.

------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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n2oMike
Gearhead

Posts: 1363
From: Spencer, WV
Registered: Jan 2001

posted 12-18-2001 07:03 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
There are PLENTY of oiling mods that can (and should) be done to the FE center oilers.

Some involve using the larger sized oil filter adapter, and smoothing it out. Next, the passage from this mount into the engine is way undersized. Use increasingly larger drill bits until it is opened up to 7/16". Open up the passage where the oil pump attaches. It is too small as well... and will opened up to the pump outlet size. Check the alignment between the main bearing holes and the holes in the block. They are often way off, and will need adjusted by grinding either the block or bearing. The rockers on FE's also have a tendency of getting over-oiled. Yes, oil is at a premium in FE's, and we don't need excessive amounts of it getting routed to the rockers instead of the crank. These passages in the heads can be restricted. Many people use a #90 Holley jet in the head. Some drag racers with full roller setups go smaller.

As for rockers, Erson makes a nice roller setup, complete with endstands for around $600. It's the best deal going.

You can get any FE question under the sun answered at the following forum. There are TONS of diehard Fe fe-natics here. There's also a search function for the posts.

http://network54.com/Forum/74182

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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Moneymaker
Administrator

Posts: 18575
From: Lyons, IL, USA
Registered: May 99

posted 12-18-2001 07:17 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Good forum for FE's.

------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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