455 high volume oil pump - ClassicOldsmobile.com
ClassicOldsmobile.com  

Go Back   ClassicOldsmobile.com > Repair & Restoration > Engine > Big Blocks
Search

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old December 23rd, 2007, 04:54 PM   #1
Registered User
 
Join Date: Oct 2007
Posts: 585
455 high volume oil pump

I've read that a high volume pump is bad news for a stock 455. I've got a milodon 7 quart pan and the high volume pump and pick-up that go with it. After reading the horror stories, I figured I would attach the milodon extended pick-up to a stock style pump, and run a high capacity pan without concerns of ever running out of oil.
Today I pulled the old pan and noticed the extended pick-up will not fit a stock style pump.
My question is:
Can I run the milodon high volume pump and 7 quart pan with a near stock '71 455? I don't expect to run the motor above 5000 RPM (5500max) as it is not built to run any higher. My highway cruise RPM will be about 2500RPM.
Thanks.
68conv455 is offline   Reply With Quote
Old December 24th, 2007, 04:34 AM   #2
Junior Member
 
88 coupe's Avatar
 
Join Date: Oct 2004
Location: Southern CA
Posts: 2,211
Quote:
Originally Posted by 68conv455 View Post
I've read that a high volume pump is bad news for a stock 455 ........
Do not believe everything you read. Especially on the internet.

All else being equal:
At a given pressure, both pumps will move the same amount of oil. In a performance engine that has wider bearing clearances, more volume is needed, in order to maintain oil pressure, and a "standard" pump might not be up to it.

Short answer: The extra 20% of flow is not used, unless it is needed.

Quote:
Originally Posted by 68conv455 View Post
........ Can I run the milodon high volume pump and 7 quart pan with a near stock '71 455? ........
Not a problem. Since you are using "factory" clearances, that comination will work just as well as the factory oiling system.

Make sure there is a minimum ⅜" pickup to pan clearance, and 5 qts in the pan, then call it good.

Norm
88 coupe is offline   Reply With Quote
Old December 25th, 2007, 04:35 PM   #3
442=A perfect 10
 
GoodOldsGuy's Avatar
 
Join Date: Dec 2007
Location: Cary, NC
Posts: 152
[quote=88 coupe;21926]Do not believe everything you read. Especially on the internet.

All else being equal:
At a given pressure, both pumps will move the same amount of oil. In a performance engine that has wider bearing clearances, more volume is needed, in order to maintain oil pressure, and a "standard" pump might not be up to it.

Short answer: The extra 20% of flow is not used, unless it is needed.


Not a problem. Since you are using "factory" clearances, that comination will work just as well as the factory oiling system.

Click the image to open in full size. Depending on how you are using your application, slight

restriction of oil to the top end might be in order otherwise you are good to go!

Regards,

Fred
GoodOldsGuy is offline   Reply With Quote
Old December 26th, 2007, 07:29 AM   #4
Junior Member
 
88 coupe's Avatar
 
Join Date: Oct 2004
Location: Southern CA
Posts: 2,211
Quote:
Originally Posted by GoodOldsGuy View Post
Quote:
Originally Posted by 88 coupe View Post
........ Since you are using "factory" clearances, that comination will work just as well as the factory oiling system.
Depending on how you are using your application ........
Following is from his opening post:

Quote:
Originally Posted by 68conv455 View Post
I've read that a high volume pump is bad news for a stock 455 ........ ........ milodon high volume pump and 7 quart pan ........
It's a stock engine. He has already spent more cash, than he needed to.

Quote:
Originally Posted by GoodOldsGuy View Post
........ slight restriction of oil to the top end might be in order ........
Not needed. If he was interested in overkill, restricted pushrods would have been a better choice than his deep pan.

Norm
88 coupe is offline   Reply With Quote
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
High Volume Oil Pump/Pick-UP-NEW davebw31 Parts For Sale 10 July 14th, 2013 05:02 PM
High volume oil pump Sampson Small Blocks 17 April 4th, 2013 09:47 AM
Meilling High Volume oil pump Redog Parts For Sale 0 October 8th, 2010 02:57 PM
oil restrictors with high volume oil pump. 86pontiac Small Blocks 16 February 17th, 2010 11:24 AM
high volume oil pump Joel n Small Blocks 5 January 12th, 2007 03:34 PM



All times are GMT -7. The time now is 09:57 AM.

All content Copyright 2008 by Internet Brands, Inc.