Author Topic: 360 oil pan gasket  (Read 705 times)

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Offline Sir Keppa

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360 oil pan gasket
« on: September 13, 2020, 04:18:36 pm »
I recently removed the oil pan from my 1984 360cui stock Ramcharger because the old gaskets began to leak slightly. The old gaskets crumbled away while removing the pan but it was the factory gasket set consisting of the two long cork gaskets and the two rubber ones in front and rear.
I ordered me the MAHLE set #OS30520ZTC from Rockauto but the rubber gasket in the pans rear seems to be too big - please see pictures. The gasket notch shows 6 centimeter = 2.36" in depth.

I searched here in the forum and found some threads from users with a similar problem but i could not find a hint for a correct gasket.

Its a factory oil pan that never has been removed before, i just repainted it black.

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    Offline ToxicDoc

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    Re: 360 oil pan gasket
    « Reply #1 on: September 13, 2020, 04:29:52 pm »
    compare 360 with 318 seals. This has come up before although not sure if it's your issue.
    '85 W150 SB, 408 stroker, Magnum manifolds, Performer RPM, 670 Truck Avenger, HEI ignition, Auburn LSD 9.25 and '82 D44 (non-CAD) with 3.55/3.54,  NV4500/NP241

    Offline Canadian country boy

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    Re: 360 oil pan gasket
    « Reply #2 on: September 14, 2020, 03:07:51 am »
    I wish someone would make a one piece gasket for small blocks.
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    Offline dodge82273

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    Re: 360 oil pan gasket
    « Reply #3 on: September 14, 2020, 03:15:01 am »
    yeah , wrong gasket . Iv'e had good luck with Felpro , be sure you have a 360 not a 318 as they are different . 360 IS a larger one .
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
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    Offline DODGEBOYS

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    Re: 360 oil pan gasket
    « Reply #4 on: September 14, 2020, 09:20:10 am »
    as far as l know the ONE PIECE mag motor gasket fits , aint tried it but l,ve heard it does
    put your truck info HERE
    MOPAR TO YA!!!!!! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
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    Offline Sir Keppa

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    Re: 360 oil pan gasket
    « Reply #5 on: September 14, 2020, 10:40:35 am »
    My block says 4045601-360 so its a 360.

    as far as l know the ONE PIECE mag motor gasket fits , aint tried it but l,ve heard it does

    Would be nice to know if it fits. I am from Germany so it will be try and error with a lot of waiting between.

    Offline ToxicDoc

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    Re: 360 oil pan gasket
    « Reply #6 on: September 14, 2020, 04:46:17 pm »
    it might be a mistake - correct part number but wrong part. That would be my thought here.
    '85 W150 SB, 408 stroker, Magnum manifolds, Performer RPM, 670 Truck Avenger, HEI ignition, Auburn LSD 9.25 and '82 D44 (non-CAD) with 3.55/3.54,  NV4500/NP241

    Offline Canadian country boy

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    Re: 360 oil pan gasket
    « Reply #7 on: September 14, 2020, 07:46:01 pm »
    What Doc says is true, I used to work in a parts store and we dealt with things boxed wrong all the time. I need to do an oil pump soon and i am going to try the Magnum gasket and see if it works and then I'll report my success. That would be sweet if it works. The one down side to testing gaskets is that once you open the package you own it. Plus if it goes over seas makes it more inconvenient.
    Dodge boys have more fun!  Get with the adult toys from Dodge!
    '79 Macho Power Wagon.

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    Love Jesus with all your heart. Satan is the greatest deceiver.

    TRUTH IS NOT A CONSPIRACY THEORY.
    STOP GLOBALIZATION!!! STOP THE UNITED NATIONS!!! #WEDONOTCONCENT

    Offline SuperBurban

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    Re: 360 oil pan gasket
    « Reply #8 on: September 14, 2020, 09:45:13 pm »
    Here is what Magnum swap has to say. Its written concerning using a LA oil pan on a magnum.

    Quote
    Oil Pan
    Magnum engines are factory equipped with a truck-style rear sump pan. If you’re installing the engine in a truck, no problem, but for installation in a car, you need the mid-sump standard car pan for a 360 engine. The Magnum uses a different gasket than the LA, but the good news is that you can use one of the nearly leak-proof one-piece rubber Magnum gaskets. More info here:

    5.9 Magnum “One Piece” Oil Pan Gasket
    When using an LA timing cover, it is still possible to use the one piece oil pan gasket from the Magnum engines. Simply use the front ‘U ‘from the timing cover kit—you’ll need one to install the timing cover and water pump anyway–and cut away the corresponding U-shaped piece on the Magnum gasket. A little Rite StuffTM where the rubber gasket meets the new U, and VOILA! Leak free fit!

    Scram Speed now sells a gasket kit specifically for this purpose, using the same gaskets we do
    77 W200, 360/727/NP203/D44HD/D60 (Wifes Toy)
    77 M887- 318/727/NP203 D44HD/D60
    78/86 Ramcharger.  360/727/NP203 D44/9&1/4
    85/89/90 D150/W250 5.9TBI/435/241 D44HD/D60HD
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    Offline SuperBurban

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    Re: 360 oil pan gasket
    « Reply #9 on: September 14, 2020, 09:47:16 pm »
    77 W200, 360/727/NP203/D44HD/D60 (Wifes Toy)
    77 M887- 318/727/NP203 D44HD/D60
    78/86 Ramcharger.  360/727/NP203 D44/9&1/4
    85/89/90 D150/W250 5.9TBI/435/241 D44HD/D60HD
    85 W350 360/727/241 D44HD/D60
    97 B3500 5.9MPFI/518 D60HD
    20 Pacifica Hybrid, 3.6 V6, EVT 1 speed trans.
    projects:
    85 Country Coach RV, 5.9 Cummins/TH475,GV od,US gear Exhaust brake,D70HD (4 wheel disk brakes, 10 lug 19.5 rims.

    Offline Sir Keppa

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    Re: 360 oil pan gasket
    « Reply #10 on: September 15, 2020, 04:06:33 pm »
    it might be a mistake - correct part number but wrong part. That would be my thought here.
    I just checked the kit number and its definitely the OS30520ZTC which i ordered and which was recommended from Rockauto.

    I am wondering how that rear gasket should fit. I did not see how the factory gasket sat in the arc because it crumbled right away...Should the gasket sit on top of the raised surface (orange in picture) in the arc or somewhere behind (blue in pic) or in front (green) of it?`



    Offline dodge82273

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    Re: 360 oil pan gasket
    « Reply #11 on: September 16, 2020, 02:22:21 am »
    all I can see / say for sure is that the pic of rubber on the pan where it is that you posted shows the wrong rubber for that place .  That gasket/rubber would go into a groove on the rear main bearing cap , with the tabs extending out onto the oil pan rails of the block .
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Sir Keppa

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    Re: 360 oil pan gasket
    « Reply #12 on: September 16, 2020, 02:59:16 pm »
    all I can see / say for sure is that the pic of rubber on the pan where it is that you posted shows the wrong rubber for that place .  That gasket/rubber would go into a groove on the rear main bearing cap , with the tabs extending out onto the oil pan rails of the block .

    I am with you...i made some pics showing the kit i got. I think the front gasket is correct....
    Could anyone post a picture showing the correct rear gasket?


    Offline dodge82273

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    Re: 360 oil pan gasket
    « Reply #13 on: September 16, 2020, 05:00:24 pm »
    sadly when I buy one its to install so I have none loose look on the side of your block or at the vin number below the head . is it a 318 ? or 360 , they look the same at a glance ...
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline SuperBurban

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    Re: 360 oil pan gasket
    « Reply #14 on: September 16, 2020, 06:14:59 pm »
     This one is the rear gasket.

    77 W200, 360/727/NP203/D44HD/D60 (Wifes Toy)
    77 M887- 318/727/NP203 D44HD/D60
    78/86 Ramcharger.  360/727/NP203 D44/9&1/4
    85/89/90 D150/W250 5.9TBI/435/241 D44HD/D60HD
    85 W350 360/727/241 D44HD/D60
    97 B3500 5.9MPFI/518 D60HD
    20 Pacifica Hybrid, 3.6 V6, EVT 1 speed trans.
    projects:
    85 Country Coach RV, 5.9 Cummins/TH475,GV od,US gear Exhaust brake,D70HD (4 wheel disk brakes, 10 lug 19.5 rims.

    Offline stftruck

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    Re: 360 oil pan gasket
    « Reply #15 on: September 16, 2020, 07:52:34 pm »
    That rear seal looks right to me... try it into the rear main cap on your block.  There is a groove in the cap that the seal sets into.  If it does not sit into the groove, then maybe it's the wrong seal.  Didn't the early Mopar 4 cylinder 2.5L use a seal like this on it's oil pan?

    Offline C-Diddy

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    Re: 360 oil pan gasket
    « Reply #16 on: September 17, 2020, 06:39:12 pm »
    I just went through this when I changed the timing cover and added a crank scraper ( {idea} ) on my 360 RC. Those gaskets are correct. Though the rear seems too big, it actually compresses and sort of "shrinks to fit" into place when you put the pan back. I did this about 2 months ago and did a 300 mile trip right after and have not had a leak yet (about 1k miles now). I used a cheap, tiny, paint brush and put a little sealant underneath the gasket where it mates to the pan, and on the top of the gasket. I also brushed some on where it mates to the block. Not too much, or some may fall off and clog your oil pickup.
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    Offline Jstorm

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    Re: 360 oil pan gasket
    « Reply #17 on: September 18, 2020, 10:48:25 pm »
    I'm not trying to make things more frustrating, but several manufacturers are putting what looks like 2 rear seals in the pan gasket kit. Must be some reason. I've seen more examples than these.
    Life Is Beertiful

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    Offline stftruck

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    Re: 360 oil pan gasket
    « Reply #18 on: September 18, 2020, 11:20:43 pm »
    I'm not trying to make things more frustrating, but several manufacturers are putting what looks like 2 rear seals in the pan gasket kit. Must be some reason. I've seen more examples than these.
    The kit fits a 273, 318, 340 & 360.

    Offline Jstorm

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    Re: 360 oil pan gasket
    « Reply #19 on: September 18, 2020, 11:52:43 pm »
    The kit fits a 273, 318, 340 & 360.

    Makes sense now. Reading Is Fundamental. Understanding and putting the pieces of the puzzle together is a different story.
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    Offline dodge82273

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    Re: 360 oil pan gasket
    « Reply #20 on: September 19, 2020, 02:06:17 am »
    the 360 has a larger main bearing diameter , hence a larger size U to seal . the pic shows a seal and pan that do not seem to fit one another , the end "ears" of the seal set on the blocks pan rails and the rails of the pan , in the pix those "ears" are way above the pans rails .
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Chilly

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    Re: 360 oil pan gasket
    « Reply #21 on: September 19, 2020, 06:52:56 am »
    I just checked the kit number and its definitely the OS30520ZTC which i ordered and which was recommended from Rockauto.

    I am wondering how that rear gasket should fit. I did not see how the factory gasket sat in the arc because it crumbled right away...Should the gasket sit on top of the raised surface (orange in picture) in the arc or somewhere behind (blue in pic) or in front (green) of it?`

    I think Permatex #2 is the correct sealant.  Maybe a dab of "Right Stuff" at gasket seams.  Havent gasketed a Dodge pan before so I'll refrain from here.
    92 Ramcharger
    360 TBI, auto, 241 t-case
    44F, 9.25R posi, 3.54 gears (yeah, I know)
    Skyjacker 4", 33x12.5

    Offline Canadian country boy

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    Re: 360 oil pan gasket
    « Reply #22 on: September 20, 2020, 09:05:55 pm »
    "Right Stuff" is king.
    Dodge boys have more fun!  Get with the adult toys from Dodge!
    '79 Macho Power Wagon.

    I support American made  🇺🇸

    Love Jesus with all your heart. Satan is the greatest deceiver.

    TRUTH IS NOT A CONSPIRACY THEORY.
    STOP GLOBALIZATION!!! STOP THE UNITED NATIONS!!! #WEDONOTCONCENT

     

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