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11-23-2006, 06:41 PM
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CC Member
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Join Date: Oct 2004
Location: Odessa,
TX
Cobra Make, Engine: SOLD: ERA FIA #2114 with 331
Posts: 262
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Not Ranked
Milodon oil pan is not lining up with block.
Oil pan bolt hole alignment is off for all the holes with the engine block. The alignment is close at the back end but gets worse toward the front. I have a late '70s 302 block stroked to 331 (steel girdle, Melling HV oil pump). Toward the front the holes are half covered with the pan lip. Is this common? Should I just enlarge the holes and use bigger washers if need be? Thanks for your help.
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11-23-2006, 07:48 PM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
Posts: 5,391
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Not Ranked
Sounds like the wrong pan. I don't ever recall hearing of one that far off.
Is there a part number stamped on it?
Larry
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11-23-2006, 08:01 PM
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CC Member
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Join Date: Oct 2004
Location: Odessa,
TX
Cobra Make, Engine: SOLD: ERA FIA #2114 with 331
Posts: 262
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Not Ranked
Yeah, it's Milodon's 31600. I double checked on their
website.. It's their road race pan for 289 - 302 engine. I thought maybe the oil pump was preventing it from lining up but it still didn't line up right without the oil pump installed... |
11-23-2006, 08:08 PM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
Posts: 5,391
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Not Ranked
Hmmm... Maybe call them and see what they say. It could have been missed-marked. Just doesn't sound right to me.
Larry
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11-23-2006, 08:59 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Milodon uses a vibrating marker to scribe the part # on the body of the pan. Is 31600 scribed on your pan?. I had a Milodon RR pan and it fit perfect. Are you using a stock 289/302 block or is it an aftermarket block? As you stated the 31600 is for a 289/302 but a very similar 31630 is for a 351W. Maybe it is mismarked. It may be bent a little or ir could have closed up a little during the welding process. If you have the 31600 use a spreader or hammer gently on the inside of the rails to open it up. The main cap seal area would be much larger diameter on a 351W, check this before hammering on the pan.
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 11-23-2006 at 09:14 PM..
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11-23-2006, 09:12 PM
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CC Member
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Join Date: Oct 2004
Location: Odessa,
TX
Cobra Make, Engine: SOLD: ERA FIA #2114 with 331
Posts: 262
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Not Ranked
Yeah, 31600 is scribed on the inside. Also looks like
a letter is scribed above and below the 31600 probably indicating the inspector and maker of the pan.. The box it came in says 31600 too.. I have a Ford 302 late '70s block stroked to 331. It's a D8 or D9 engine..
Last edited by iwantacobra427; 11-23-2006 at 09:15 PM..
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11-24-2006, 12:26 AM
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CC Member
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Join Date: Oct 2004
Location: Odessa,
TX
Cobra Make, Engine: SOLD: ERA FIA #2114 with 331
Posts: 262
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Not Ranked
I checked on Summit Racing.. They indicate that the
31600 pan is not strokered clearanced! I guess you can't use a Milodon with a 331??? I'll call them to confirm..
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11-24-2006, 01:41 PM
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CC Member
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Join Date: Aug 2004
Location: Rosamond,
Ca
Cobra Make, Engine: FFR, 331 Sportsman block, T5Z, 3.55 IRS, Fuel Safe cell
Posts: 97
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Not Ranked
If it doesn't fit, take it back. Once you start beating on it, or enlarging the holes, you will have to keep it.
__________________
FFR, 331 SBF dynoed 372RWHP@ 6100 RPM on 87 octane pump gas
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11-25-2006, 08:29 AM
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CC Member
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Join Date: Sep 2002
Location: Mechanicsville!,
PA
Cobra Make, Engine: Unique 427SC/331/5 forward
Posts: 922
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Not Ranked
I bought Rick's pan and am using it to this minute, on my 331 stroker. Used it earlier on my 302. It fits perfectly, and required NO Armstrong Engineering.
Don't do it (beat on it) - return it and get another. Deal with Milodon - if you have to - and it will be made right. But do not hack it up because, as J Persons says, you will then own it.
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11-25-2006, 09:22 AM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
turnpike boy:
Glad to hear it is doing you well. That was a good pan and controlled the oil well, the fit was real good and didn't need a lot of "coaxing" to remove or install.
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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11-25-2006, 03:22 PM
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CC Member
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Join Date: Sep 2002
Location: Mechanicsville!,
PA
Cobra Make, Engine: Unique 427SC/331/5 forward
Posts: 922
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Not Ranked
Hiya Rick! 'S'been a while.
An, yes, I agree with you - it's an excellent pan. Quality of build, absence of leaks, appearance, and fit are all top-shelf. And stability of oil pressure under autox use has proven its' functionality. Real good stuff.
Iwanta, by all means check in with Milodon. |
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