Pontiac - Street No question too basic here!

          
Reply
 
Thread Tools Display Modes
  #1  
Old 12-21-2014, 02:58 PM
The Jury's Avatar
The Jury The Jury is offline
Senior Member
 
Join Date: Jan 1970
Location: Lafayette Indiana
Posts: 115
Send a message via AIM to The Jury
Default Choosing a 455 street oil pan. Canton or back to stock?

One of the main projects on my winter list is an oil pan swap on my 455. I currently have a Moroso 8 qt pan on the car. Would be a great pan, however my car has been lowered and with the pan hanging below the crossmember, we're one good bump from disaster. So I'm getting ready to make a choice, do I go with the Canton 15-400 which has the side pouch, but also hangs an inch deeper than a stock pan, or do we go back to stock strictly for the clearance issues. I also understand that most of the Canton pans need to be massaged a bit, plus have the hole drilled for the stock dip stick. Anyone with the 15-400 pan that can tell me about the cross member clearance or thoughts on going back to a stock pan for a car that has been 95% street since built. Car is a 68 lemans.

Thanks,
Derek

__________________
1968 Pontiac LeMans- The Jury
"GT...Uh-oh?!"
Pontiac 455
  #2  
Old 12-21-2014, 03:27 PM
b-man's Avatar
b-man b-man is offline
Moderator
 
Join Date: Sep 2002
Location: Sunny So Cal
Posts: 17,046
Default

Put a stock '73 and later baffled pan in it.

Have used them on the street on several cars and on a low-12 second 455 bracket car with absolutely no oiling-related issues.

Always added a copy of the H-O Racing trap door/baffle mod, so the oil pressure stays constant on hard right turns: http://forums.maxperformanceinc.com/...d.php?t=609229


__________________
1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/2.56
2002 WS6 Convertible LS1/4L60E/3.23
  #3  
Old 12-21-2014, 04:46 PM
455Darren's Avatar
455Darren 455Darren is offline
Senior Member
 
Join Date: Aug 2007
Location: Rust belt S.W. Michigan
Posts: 200
Default

I have the Canton Road Race pan on my '70 GTO. Fit good, but the rear pan rubber gasket has to be worked to fit and hold in place. Lucky to have figured out a hole has to be drilled in the baffle for the dipstick. Did some Autocrossing with no oil pressure issues.

__________________
Drivin' fast and takin' chances!!!!
  #4  
Old 12-21-2014, 05:05 PM
Garry Sr Garry Sr is offline
Suspended
 
Join Date: Feb 2002
Location: Lake Havasu, AZ
Posts: 844
Default

You may want to take a look at the Milodon 31660. No kickouts and holds 6 qts. Pan depth is 7.750

  #5  
Old 12-22-2014, 11:17 PM
Tim Corcoran's Avatar
Tim Corcoran Tim Corcoran is offline
Ultimate Warrior
 
Join Date: Jan 2000
Location: Willow Spring, North Carolina
Posts: 4,876
Default

The factory baffled pan is all you need and no reason to mess with anything else as you won't gain anything except you have to put in more oil for each oil change.

__________________
Tim Corcoran
  #6  
Old 12-22-2014, 11:40 PM
The Jury's Avatar
The Jury The Jury is offline
Senior Member
 
Join Date: Jan 1970
Location: Lafayette Indiana
Posts: 115
Send a message via AIM to The Jury
Default

The stock pan with the baffle looks like a good solution. Somehow I'm finding that more complex or "upgraded" is not always better. Thanks all for the advice so far. If anyone has something to add please chime in. If someone has a clean pan with the baffle that they would like to sell, please let me know. Should also ask is the BOP one piece rubber gasket a good solution for getting the pan to seal up the first time?

__________________
1968 Pontiac LeMans- The Jury
"GT...Uh-oh?!"
Pontiac 455
  #7  
Old 12-23-2014, 11:07 AM
Don 79 TA Don 79 TA is offline
Ultimate Warrior
 
Join Date: Sep 2007
Posts: 1,676
Default

i agree with the above, street driving a lowered car, definitely stick with the stock or one that doesn't hang down
no use adding the risk of something happening while on the road

i've seen some cars with pans that looked like 1" from the ground and thought how the hell are they driving without wiping that pan out
at least in this area i wouldn't chance it, nor would i back in NY with all the lovely pot holes/dips/bumps/etc

  #8  
Old 12-23-2014, 11:50 AM
HWYSTR455's Avatar
HWYSTR455 HWYSTR455 is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Manassas, VA
Posts: 15,076
Default

68 A-body? What kind of driving do you do?

The Milodon and that Canton road race pans don't hang below the cross member, and control oil well. If you take an exit ramp fast with a factory pan, you will know why you NEED a pan that controls oil.

Personally, I would never put a factory pan back on unless you want to go factory for look/resto. You can paint either pan to look more factory, and would take a closer look for others to notice.

I've never had an issue with the Milodon or Canton pans sealing using the cork rear cap gasket and the regular pan rail gaskets.


.

__________________
.

1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #9  
Old 12-23-2014, 04:01 PM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Katy,TX USA
Posts: 20,829
Default

I'll agree with the last statement any spriited driving you will need some oil control. I used an HO pan autocrossing OK except a HARD stop box -lifters ticked so obviously starved for oil. Milodon road race pan hard braking at the end of the drag strip to make the first turn oil pressure dropped way down.

My Canton has not done that and I think has good baffling. The second gen is the same depth as a stock pan. The GTO pan is maybe 1" deeper but a shorter length sump to clear the crossmember.

__________________
Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
  #10  
Old 12-23-2014, 04:06 PM
428goat 428goat is offline
Senior Chief
 
Join Date: Jan 2001
Location: Elkhart In. USA
Posts: 443
Default

I had a Milodon and the drain plug always leaked a little of course it was after the engine was in the car. I tried all different plug gaskets. When I got around to putting a stock pan on I took a good look at the drain plug and I could see that it was not flush with the pan when screwed in. The nut welded inside was welded on at a angle so the plug screwed in at a angle. Another guy I know had the same problem. He went back to a stock pan also. Maybe they are better now.

  #11  
Old 12-23-2014, 08:09 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,302
Default

Quote:
Originally Posted by b-man View Post
Put a stock '73 and later baffled pan in it.

Have used them on the street on several cars and on a low-12 second 455 bracket car with absolutely no oiling-related issues.

Always added a copy of the H-O Racing trap door/baffle mod, so the oil pressure stays constant on hard right turns: http://forums.maxperformanceinc.com/...d.php?t=609229

I REALLY like Bart's modded pan!

The only change I would make if also doing acceleration runs would be to put a 1/2" strip of metal across the back on the pan with the non welded edge pointing downward at 30 degrees. This way it oil that "climbs the pan wall" will be turned back to the center of the sump.

Tom V.

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
  #12  
Old 12-23-2014, 08:25 PM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Katy,TX USA
Posts: 20,829
Default

Tom Bart's picture is what the HO pan was/is. As you can see to the passenger side nothing to sop the il from going up in a hard stop. I had planned to add a little more wall around to that side and maybe another trap door in front all wrapped tight around a factory pickup-or use the Canton second gen pickup that is smaller so you could add the extra wall a little back for the trap door. Ihave that pan on the 78's original motor on the stand now and a copy I made stealing two trap doors for a SBC Vette pan in the 81 TA .

Canton used to sell the trap doors separately.

__________________
Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
Reply


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

Forum Jump


All times are GMT -4. The time now is 02:41 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017