This will take you to the main site where there is history, technical information and other information on these cars.
This takes you back to the main page of the forums.
This is the control panel to change your password, information and preferences on this message board.
Click here if your lost your password or need to register on this message board. You must be a registered user to post. Registration is free.
Search this board for information you need.
Click here to buy cool Squarebirds mechandise.
Click here to support Squarebirds.org. For $20 annually receive 20mBytes webspace, a Squarebirds e-mail address and member's icon on the message board.
  #11  
Old 10-03-2017, 09:34 PM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
 
Join Date: May 26 2009
Posts: 7,080
simplyconnected is on a distinguished road
Default

Since the 1960's, I've used my 'special concoction' for building engines. It's no secret recipe but a heavy mixture of name brand 10W-30 and STP.

The idea behind it is twofold. All the parts need lubrication but some parts do better with thin oil (like pistons) and other areas need lubrication that will stick and not drain off.

STP is high in ZDDP but they won't reveal the numbers. I called them but they wouldn't budge. This is typical with oil companies. Flat tappets need zinc and phosphorus, engine oil from the past had plenty of this 'last ditch' protection. Modern motor oils with 40 or more in their numbers have around 1,200-PPM ZDDP. For that reason, I use Shell Rotella 15W-40 with NO other additive. Rotella is primarily a diesel lubricant for severe service but it also works well in classic engines.

Funny thing is, it's easier to know if your oil ISN'T protecting because your lifters and cam will tell you when they fail. I recently built a 351W for Brian Wheeler. The cam and lifters I removed were shot. Lifters were dished and the cam was worn past the heat treat. Other parts of the engine didn't look so bad. Regardless, I had the block totally machined and replaced the heads and intake with Edelbrock aluminum. We used a Comp Cams hydraulic roller assembly to eliminate the ZDDP requirement. - Dave
__________________
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
Reply


Thread Tools
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 01:11 PM.

Driving, racing or working on cars can be hazardous. The procedures and advice on this website including the message board are opinion only. Squarebirds.org and its webmasters and contributors do not guarantee the correctness of the advice and procedures. The Squarebirds.org and its webmasters assume no liability for any damage, fines, punishment, injury or death resulting from following these procedures or advice. If you do not have the skills or tools to repair your car, please consult a professional. By using this site you agree to hold harmless the Squarebirds.org, its authors and its webmasters from any resulting claim and costs that may occur from using the information found on this site.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Any submissions to this site and any post on this site becomes property of Squarebirds.org . The webmasters reserve the right to edit and modify any submissions to this site. All material on this is site is copyrighted by the Squarebirds.org. Reproduction by any means other than for personal use is strictly prohibited. Permission to use material on this site can be obtained by contacting the webmasters. Copyright 2002-2016 by Squarebirds.org.