help with a one piece oil pan gasket - The 1947 - Present Chevrolet & GMC Truck Message Board Network

crm318 · 11-15-2006, 02:29 PM

i recently aquired a rebuilt 1989 350. im going to use a one piece oil pan gasket but there are 2 metal oil pan pieces that i have no idea what to do with. it looks like it would seal just fine without them. what do yall think?

70rs/ss · 11-15-2006, 03:25 PM

If I am thinking correctly (need picts to be fer sure!) Those two pieces go down on top of the pan rail to keep the pan bolts from warping the flange and causing a leak, so YES you do need them unless you want a potential oil leak.

Bad71chev406sbc · 11-15-2006, 03:37 PM

Something like this????

Then yes...you need them. This pic was taken before the teardown of my 400.

crm318 · 11-16-2006, 04:34 PM

ill try to get yall some pics. the two pieces run the length of the pan on either sides and look like the two piece gaskets (accept they are 1/8 in thick metal).

70rs/ss · 11-16-2006, 04:46 PM

Yeah, I know what they look like, they are there to keep equal pressure on the gasket as I stated above, the metal keeps the pan lip from warping if you over tighten the bolts which will cause a leak and or the gasket to split! Use it, there is no benefit to not using them so it is a little insurance to prevent a leak.

Draggn66 · 11-16-2006, 05:16 PM

roj2323 · 11-16-2006, 09:08 PM

i totaly agree. i have even added them to every engine i've ever built that didin't have them originaly. the only exception to this might be an aluminum pan as the edge is allready thickened.

*rage'nrat638* · 11-16-2006, 10:52 PM

hell yea you need them

Bad71chev406sbc · 11-17-2006, 03:56 AM

OHHH....I get it now.

11-15-2006, 02:29 PM	#1
crm318 Alright Alright Alright Join Date: Mar 2004 Location: Midland, Texas Posts: 1,672	help with a one piece oil pan gasket i recently aquired a rebuilt 1989 350. im going to use a one piece oil pan gasket but there are 2 metal oil pan pieces that i have no idea what to do with. it looks like it would seal just fine without them. what do yall think? __________________ 1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies

11-15-2006, 03:25 PM	#2
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: help with a one piece oil pan gasket If I am thinking correctly (need picts to be fer sure!) Those two pieces go down on top of the pan rail to keep the pan bolts from warping the flange and causing a leak, so YES you do need them unless you want a potential oil leak.

11-15-2006, 03:37 PM	#3
Bad71chev406sbc Registered User Join Date: Nov 2006 Location: Boring, Oregon Posts: 162	Re: help with a one piece oil pan gasket Something like this???? Then yes...you need them. This pic was taken before the teardown of my 400. __________________ '71 SNB, 406sbc, TH350 w/ Transpak & Starshifter, 12bolt w/ 3.73s, 2" Early Classic front coils, 2.5" Flowmaster Super 40's

11-16-2006, 04:34 PM	#4
crm318 Alright Alright Alright Join Date: Mar 2004 Location: Midland, Texas Posts: 1,672	Re: help with a one piece oil pan gasket ill try to get yall some pics. the two pieces run the length of the pan on either sides and look like the two piece gaskets (accept they are 1/8 in thick metal). __________________ 1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies

11-16-2006, 04:46 PM	#5
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: help with a one piece oil pan gasket Yeah, I know what they look like, they are there to keep equal pressure on the gasket as I stated above, the metal keeps the pan lip from warping if you over tighten the bolts which will cause a leak and or the gasket to split! Use it, there is no benefit to not using them so it is a little insurance to prevent a leak.

11-16-2006, 05:16 PM	#6
Draggn66 Wrenchin & Sandin!!! Join Date: Aug 2006 Location: Joliet, IL. Posts: 523	Re: help with a one piece oil pan gasket __________________ Randy Shorewood, IL. My Favorite eBay Searches My Driver Restore Thread 1971 C10 Longbed 2005 Silverado Shortbed 2005 FXDWG

11-16-2006, 09:08 PM	#7
roj2323 Senior Member Join Date: Mar 2004 Location: Somewhere Posts: 985	Re: help with a one piece oil pan gasket i totaly agree. i have even added them to every engine i've ever built that didin't have them originaly. the only exception to this might be an aluminum pan as the edge is allready thickened.

11-16-2006, 10:52 PM	#8
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: help with a one piece oil pan gasket hell yea you need them Last edited by rage'nrat638; 07-12-2007 at 07:01 AM.

11-17-2006, 03:56 AM	#9
Bad71chev406sbc Registered User Join Date: Nov 2006 Location: Boring, Oregon Posts: 162	Re: help with a one piece oil pan gasket OHHH....I get it now. __________________ '71 SNB, 406sbc, TH350 w/ Transpak & Starshifter, 12bolt w/ 3.73s, 2" Early Classic front coils, 2.5" Flowmaster Super 40's



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