dalla

Hi Guys

Hope you can help me. I am about to start replacing my rear main seal.
I think i hav studied the process of this, and have a good idea of the process. However as I live in Denmark, i would like to be as well prepared as possible. If i suddenly need something, it will probably leave the "project" stranded for 2 weeks.

So far i have found out that i need this:

-Rear main seal (obviously)
-New flywheel bolts
-Sump gasket
-RTV sealant

Do i need anything else, special tools or something like that?

Also i read not to buy the Felpro main seal gasket, it would be better to buy the National item, there even is a heavy duty item. I think that this is the one i want? Can any of you point me towards where i can buy it? I have checked Ecklers and MAmotorworks, but cannot find it.

Also this RTV sealant, everyone writes about "The right stuff", i am also unable to find this? I have found these 2 types, which seems to might be ok?





http://www.ebay.co.uk/itm/2712075132...%3AMEBIDX%3AIT




http://www.ebay.co.uk/itm/2709864913...%3AMEBIDX%3AIT

Which would be the best?

Any other tips or tricks, i would really be grateful for your help.

BR
Dennis

desertmike1

I personally like the "Ultra grey" by permatex because of the added assembly time, plus the additional 50° upper range limit,, but to be honest anyone of these permatex sealers would work just fine for an "main seal" to block sealant.


http://www.zoro.com/i/G0600415/?utm_...iatBoCZrTw_wcB

nutz4c4

Rear Main Seal I use National # 4359V..it is a Viton seal. Always worked well for for me in small blocks.Oil pan I use SCE gaskets available at Summit.A little pricey but a quality piece..

dalla

Thanks guys. Only one i can find with that number is this.
http://www.summitracing.com/int/parts/tmk-4359v

Is that any good, and will it fit a 1994 LT1? If you got any links i will appreciate it.

mtwoolford

when you get that flywheel off; check the freeze plugs on the back of the block; if they're brass,,,they're probably okay. If they're steel, now would be a good time to pop them out and replace with brass,,,steel rusts and a pin hole leak (or worse) down the road would be a real inconvenience.

dalla

Hi there

I will check them for sure, thanks for the advice. However the car has only done 25K miles, and the engine only 10K miles, and has seen no vinter driving, so i hope that they are ok.

However i anyone an point me in direction to where i can buy the right/best rear main seal for a 1994 LT1 (It is actually a 383 stroker with a lunati crank, does this change anything), i would really appreciate it.

just joe 2

Just a heads up for you. I do not have an Lt1. I had to buy a different seal from original (relocates where lip sits on crankshaft). Because crankshaft had wear (slight grove) where the orignal sat.
Good luck Joe

dalla

OK i am confused now. I have seen two piece seals now. But as i understadn theser er up to 1986? After this LT1's and LT4's use a one piece seal? But i still cant find one. Can any of you help with a link?

WW7

Here you go...This is one of the better seals..These are all one piece seals...Even in Denmark they should have parts stores that stock one piece rear seals for 350 Chevy engines...WW


http://www.summitracing.com/parts/ntl-4359v

http://www.rockauto.com/dbphp/x,cata...nal_4359V.html