265 rear main seal

[Roy B.]

I'v heard talk of a new rear main seal for the 265 engine that replaces the wick type. Some one know about this?Thanks

[Joe L.]

Re: 265 rear main seal

Roy-----

Yes, there is available a neoprene rear main seal for 55-58 Chevrolet small blocks. I don't know who actually manufactures this seal, but I'm sure that it's one of the major manufacturers. Paragon sells this seal and I'm sure that it's also available from other aftermarket sources.

[Bernard M.]

Re: 265 rear main seal

My 265 engine overhaul gasket set from Victor (Dana) had a rubber seal included.

[Rob Dame]

Re: 265 rear main seal

I replaced mine about three years ago. The one I used had two neoprene half moon seals just like any other split lip seal.
There were also two half moon pieces of wire that fit with the seal into the grove.
The wire helps the seal to fit tight in the grove.

I off set the seal joints just a bit from the bearing cap joint.
I also used a small amount of Ultra Copper sealer on the butt ends of the seal and at the corners of the bearing cap.

I followed the instructions and let it set 24 hours, knock on wood,it hasn't since.

Rob

[Roy B.]

Re: 265 rear main seal

I talked to Paragon and they sell it for $25.00, I drive my Corvette so much that it finaly started to leck bad real bad. Thanks all.

[Mike M.]

Re: 265 rear main seal

Roy: over the years i've rebuilt or re-main sealed several 265's and 283's with rope seals. they suck or i'm a poor seal installer. all the ropes leaked, either immedtiatly or within a couple hundred miles. Once i started installing the neoprene seals(Gary Pronesti @ 20 bucks each--email me for his address), concrete floors under oil pan are white/grey, not blue/black. mike

[John H.]

Re: 265 rear main seal

I used the one Paragon sells when I rebuilt my '57 270 six years ago - has never leaked a single drop.