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| | | Forums66 Topics128,162 Posts1,056,917 Members48,458 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2016 Posts: 1 Moderated | | Moderated Joined: Sep 2016 Posts: 1 | hi all thanks for letting me join you. I am in need of some info regarding what has been used to replace the 2 piece neoprene rear main seal in a 1957 235 cid. I have been told and it was confirmed by a tech rep with Federal-Mogul that Felpro has discontinued the 2 piece seal that they had for the 55-62 235\261 engines and have not replaced it with anything but a rope seal. I tried to use the rope and could not get it to fit in the "V" grove that the old neoprene seal came out of, no how-no way. The rope is just to large in diameter to get down in the grove. when I did get in (I thought) and I put the bearing cap on, the crank would not turn, too much pressure from the seal.
the old Felpro part number is BS13363 for the seal kit, I can find no cross reference to another manufacturer and the tech guy said that it was not superseded or replaced with another part, just not made anymore. just wondering what someone out there may know or has done in this case. any input would be really helpful. thanks in advance.
If you don't have to fix it, you're not driving hard enough!
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I know this guy would have one if you can't find one. He is in Canada but he is a great source. Gasket City | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 |
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Jul 2010 Posts: 592 Shop Shark | | Shop Shark Joined: Jul 2010 Posts: 592 | Patrick's carries the Best gasket that Pre '68 Dave mentioned above. www.patricksantiquecars.comThere is a typo on the part number in the Patrick's catalog for the part. It is listed as 45195 instead of 4519S. Matt | | | | | Joined: Dec 2006 Posts: 1,154 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,154 | What are the dates or codes on the 235 engine that reflect a change from rope gasket to neoprene. I thought all 235 blocks required special machining to accept a neoprene rear main seal?....Mr. Langdon on his site comments trying to install this seal by just dropping the crank has a zero chance of working? | | |
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