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07-27-2003, 09:54 PM
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#1 |
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Registered User
Join Date: Oct 2001
Location: SW Washington
Posts: 1,006
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1 pc rear main seals?
Can you guys tell me if 350 cid engines (1972 year) can be modified to use the 1 pc rear main seal? If so . . . .
Is it expensive? (Roughly how much $ ?) What parts if any need changed modified? Is it worh it? Thanks! Darren
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Washington State 1967 Chevy C10 LWB Rodstoration In Progress. 1972 K20 Cheyenne Super Last edited by imdarren; 07-27-2003 at 10:00 PM. |
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07-28-2003, 11:30 PM
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#2 |
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Registered User
Join Date: Oct 2001
Location: SW Washington
Posts: 1,006
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29 people looking and no help?
Someone must be able to help? Please? Darren
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Washington State 1967 Chevy C10 LWB Rodstoration In Progress. 1972 K20 Cheyenne Super |
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07-28-2003, 11:44 PM
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#3 |
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Registered User
Join Date: May 2001
Location: Arizona
Posts: 758
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I don't think it can be modified to be one piece. I don't think it would be doable, since the engine blocks are cast completely different. I could be wrong though. Anyone else?
Low68
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07-28-2003, 11:50 PM
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#4 |
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Sisyphus was my mentor!
 
Join Date: Sep 2002
Location: Carleton Place, Ontario CANADA
Posts: 984
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sorry but no can do-you CAN convert the new stlye blocks to the old 2-piece stayle cranks but not vice-versa. You have seal leaking problems? I install my rear main seals (2 piece) offset from the cap parting line about 1/2 an inch so help cutdown on leakage & i put a TINY dab od black silicone on the seal mating surfaces-it works...
 
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passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car |
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07-29-2003, 12:01 AM
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#5 |
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Registered User
Join Date: Oct 2001
Location: SW Washington
Posts: 1,006
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Yah. I have a good used motor that will be going in my truck. The previous owner said it had a rear main seal leak.
Thanks for the advise on the offset gaskets with the black silicone sealer on the mating surfaces. Thats what I'll probably end up doing. Thanks again! darren
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Washington State 1967 Chevy C10 LWB Rodstoration In Progress. 1972 K20 Cheyenne Super |
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07-29-2003, 01:08 AM
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#6 |
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Sisyphus was my mentor!
Join Date: Sep 2002
Location: Carleton Place, Ontario CANADA
Posts: 984
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& i almost forgot-a bit of black silcone inside the rear cap helps too & felpro has 3 seals for the older sb chevy-the factory one, one that moves the lip inboard (incase the crank is worn at that spot) & one that has both sealing lips. One of these may help you as well... good luck
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passthebuck #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car |
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