1972 buick 350 real seal

prostockpete1 · 05-28-2018, 04:10 PM

what manufacturer offers a replacement 2 piece neoprene rear main seal to replace oem Rope for 1972 Buick 350 ?

Lyn Smith · 05-28-2018, 04:28 PM

TA Buick performance in AZ. has the 4 rear neoprene seals for a Buick 350 in their catalog for $16.95. I have a 72 350 4bl intake manifold if you are looking for one.

Glenn Briglio · 05-29-2018, 07:36 AM

Quote:

Originally Posted by prostockpete1

what manufacturer offers a replacement 2 piece neoprene rear main seal to replace oem Rope for 1972 Buick 350 ?

Use a ford 460rear main seal.

prostockpete1 · 05-29-2018, 10:27 AM

Thanks Glen .. to think that a Ford main cap has same dimensions as the Buick in seal area

Chuck Norton · 05-29-2018, 11:55 AM

Quote:

Originally Posted by Glenn Briglio

Use a ford 460rear main seal.

That's priceless!! An old-time rebuilder advised me that a rear main seal for a 312 Ford would work in an Oldsmobile 307 and that the rope seal could be avoided altogether. Didn't believe him until I tried it.

c

Tom Broome · 05-31-2018, 12:56 PM

Quote:

Originally Posted by Glenn Briglio

Use a ford 460rear main seal.

I thought the 460 Ford worked in 455s, and the 350 took the same seal as the V6. Long ago I worked at Jim Ruggles' when we switched from rope to rubber. I thought the seal we used was from an AMC, but it's been a while.
I see that FelPro sells a neoprene seal for the V6s BS40613. Either way, make sure to polish the knurls down or it can chew the edge off of the neoprene seal (that much I do remember).

Rory McNeil · 05-31-2018, 01:21 PM

Quote:

Originally Posted by Chuck Norton

That's priceless!! An old-time rebuilder advised me that a rear main seal for a 312 Ford would work in an Oldsmobile 307 and that the rope seal could be avoided altogether. Didn't believe him until I tried it.

c

Interesting, every Ford 312 I ever rebuilt used a rope rear main seal.
They did have a pressed in rubber seal in the front timing cover however.

Glenn Briglio · 06-01-2018, 12:11 PM

Quote:

Originally Posted by Tom Broome

I thought the 460 Ford worked in 455s, and the 350 took the same seal as the V6. Long ago I worked at Jim Ruggles' when we switched from rope to rubber. I thought the seal we used was from an AMC, but it's been a while.
I see that FelPro sells a neoprene seal for the V6s BS40613. Either way, make sure to polish the knurls down or it can chew the edge off of the neoprene seal (that much I do remember).

231 has 2.500 main journal diameter. 460 ford and 350 buick both have 3.000 main journal diameter. Fel pro bs40032 is the one to use.

05-28-2018, 04:10 PM	#1
prostockpete1 Member Join Date: Mar 2012 Posts: 255 Likes: 3 Liked 90 Times in 52 Posts	1972 buick 350 real seal what manufacturer offers a replacement 2 piece neoprene rear main seal to replace oem Rope for 1972 Buick 350 ?

05-28-2018, 04:28 PM	#2
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,202 Likes: 284 Liked 974 Times in 195 Posts	Re: 1972 buick 350 real seal TA Buick performance in AZ. has the 4 rear neoprene seals for a Buick 350 in their catalog for $16.95. I have a 72 350 4bl intake manifold if you are looking for one.

05-29-2018, 10:27 AM	#4
prostockpete1 Member Join Date: Mar 2012 Posts: 255 Likes: 3 Liked 90 Times in 52 Posts	Re: 1972 buick 350 real seal Thanks Glen .. to think that a Ford main cap has same dimensions as the Buick in seal area