Oil Pan Bolts ?

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Oil Pan Bolts ?

Post  Copperhead on January 28th 2013, 4:57 pm

I'm trying to figure out the proper size (both thread pitch & length) for my Moroso 20612 oil pan on my A-460 block. Motor is at the machine shop and I'm trying to throw some stuff together before I pick it up.

I have a decent source for hi-end ARP fasteners, w/o having to buy a whole kit through the manufacture, I just need to know the exact sizes first.

I'm "thinking" the the main ones along the rail on the outside are 5/16"-18 and the ones on the end are 3/8"-16, BUT,.... I'm not 100% sure. I'm not certain on the length anyway. Question

Anyone know which ones I need?


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Re: Oil Pan Bolts ?

Post  IDT-572 on January 28th 2013, 5:54 pm

1/4 -20 SIDE BOLTS AND 5/16 18 END BOLTS.............. I'M YELLING Embarassed

The one piece Motor-sport gasket is smaller on the 4 end bolts, either drill them out or remove them all together. I prefer to drill them out.
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Re: Oil Pan Bolts ?

Post  Lem Evans on January 28th 2013, 6:00 pm

Get you some 1/4" set screws......makes a cheap stud kit. You could heli-coil those goofy 5/16" corner holes to 1/4" and be done with the odd sized stuff for good.

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Re: Oil Pan Bolts ?

Post  bbf-falcon on January 28th 2013, 6:30 pm

Set screws w/allen head insert works great. fastenal has them. Be careful drilling the rear holes in the gasket,it will wrap around that drill quicker than you can say "ole shit". Shocked Very Happy

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Re: Oil Pan Bolts ?

Post  Lem Evans on January 28th 2013, 6:44 pm

bbf-falcon wrote:Set screws w/allen head insert works great. fastenal has them. Be careful drilling the rear holes in the gasket,it will wrap around that drill quicker than you can say "ole shit". Shocked Very Happy

A good reason to make the 5/16" stuff go away forever.

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Re: Oil Pan Bolts ?

Post  Lem Evans on January 28th 2013, 7:31 pm

bbf-falcon wrote:Set screws w/allen head insert works great. fastenal has them. Be careful drilling the rear holes in the gasket,it will wrap around that drill quicker than you can say "ole shit". Shocked Very Happy

Funny you said that.....I witnessed that drill wrap up at Phillip's shop saturday.

If you want to deal with removing the corner inserts this is the process I offered : Put a 5/16" bolt or stud upright in your vise, have your buddy, wife or fabio's cat hold the gasket with the 1/4" insert ~ centered on the fastner in the vise. Put a 1/2 or 9/16" socket [it's one of the two] on top of the gasket & tap lightly with a small hammer.....the gasket insert will pop right out.

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Re: Oil Pan Bolts ?

Post  schmitty on January 28th 2013, 10:39 pm

bbf-falcon wrote:Set screws w/allen head insert works great. fastenal has them. Be careful drilling the rear holes in the gasket,it will wrap around that drill quicker than you can say "ole shit". Shocked Very Happy
Scares the crap right out of you Shocked , and leave my Uncle Ole out of this, and don't even start something with Uncle Sven. Laughing
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Re: Oil Pan Bolts ?

Post  Copperhead on January 28th 2013, 10:46 pm

bbf-falcon wrote:Be careful drilling the rear holes in the gasket,it will wrap around that drill quicker than you can say "ole shit". Shocked Very Happy


Been there, done that.

Freaked the shit out of me. Evil or Very Mad
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Re: Oil Pan Bolts ?

Post  Bret Powell on January 28th 2013, 11:00 pm


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Re: Oil Pan Bolts ?

Post  Lem Evans on January 29th 2013, 1:08 am

"A good reason to make the 5/16" stuff go away forever."

Just fix the issue once and quit fixing the gasket every time Rolling Eyes

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Re: Oil Pan Bolts ?

Post  dfree383 on January 29th 2013, 1:13 am

Canton sells a nice Stainless Steel Stud kit cheap.

http://www.summitracing.com/parts/ctr-22-360
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Re: Oil Pan Bolts ?

Post  Lem Evans on January 29th 2013, 1:18 am

dfree383 wrote:Canton sells a nice Stainless Steel Stud kit cheap.

http://www.summitracing.com/parts/ctr-22-360

They are cheap.....but you can buy local set screws for ~ the shipping charge... most of the time.

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Re: Oil Pan Bolts ?

Post  dfree383 on January 29th 2013, 1:24 am

Lem Evans wrote:
dfree383 wrote:Canton sells a nice Stainless Steel Stud kit cheap.

http://www.summitracing.com/parts/ctr-22-360

They are cheap.....but you can buy local set screws for ~ the shipping charge... most of the time.

True, but I usually buy a set or two when I place a big order.
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Re: Oil Pan Bolts ?

Post  738drvr on January 29th 2013, 1:27 am

Lem, how long should the set screws be?
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Re: Oil Pan Bolts ?

Post  cool40 on January 29th 2013, 1:33 am

i like these http://www.boltdepot.com/Socket_button_head_Alloy_steel_black_oil_finish_1_4-20.aspx get a lota stuff from this place. they work realy good with the bigass oil pan that has the holes you go through to reach the bolts. Very Happy
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Re: Oil Pan Bolts ?

Post  Copperhead on January 29th 2013, 2:07 pm

Now then,.....

If using bolts instead of studs (on a steel pan), what would be the proper length if using a Motorsport/Ford Racing 1pc gasket?

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Re: Oil Pan Bolts ?

Post  Lem Evans on January 29th 2013, 9:58 pm

Copperhead wrote:Now then,.....

If using bolts instead of studs (on a steel pan), what would be the proper length if using a Motorsport/Ford Racing 1pc gasket?



I aint got any idea......but if you used studs and they are 1/4" longer that they need to be.....it will not matter Wink

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Re: Oil Pan Bolts ?

Post  cool40 on January 29th 2013, 10:01 pm

Lem Evans wrote:
Copperhead wrote:Now then,.....

If using bolts instead of studs (on a steel pan), what would be the proper length if using a Motorsport/Ford Racing 1pc gasket?



I aint got any idea......but if you used studs and they are 1/4" longer that they need to be.....it will not matter Wink
how bout this http://www.boltdepot.com/Set_screws_Allen_Cup_point_Stainless_steel_18-8_1_4-20.aspx
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Re: Oil Pan Bolts ?

Post  bbf-falcon on January 30th 2013, 9:42 am

One advantage of using studs are not worrying about bottoming out a bolt or a bolt that is not long enough. I haven't used Very Happy bolts in oil pan/valve covers in years.

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Re: Oil Pan Bolts ?

Post  jbozzelle on January 30th 2013, 1:00 pm

Helicoil the corners of the block and cover or remove the corner inserts on the gasket.

I helicoiled and used 1/4-20 set screws and flanged nylock nuts. Got it all from McMaster Carr.

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