BB seals need valve tower modification?

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BB seals need valve tower modification? #1175753 02/09/12 11:12 PM 02/09/12 11:12 PM
Joined: Jan 2003 Posts: 2,623 Ca Registered: Mar-2001 H hemiallen OP master
hemiallen OP master H Joined: Jan 2003 Posts: 2,623 Ca Registered: Mar-2001	If my memory is correct the ported 906's for my 440 have the boss under the valve cover turned down to use the (I believe P3690963)stem seals, and I took the heads to a engine guy to install them and the special valve springs for the hydraulic cam. Do the 452 seals seem correct for the turned down boss? Problem is, my son feels even though the heads have sit idle for 6 or so years (NEVER INSTALLED) he wants to replace the seals while the heads are off using my compressor tool. I feel the seals will be fine, I don't have the tubes to pull one safely w/o cutting the seal o the keeper grooves... I told him to leave them alone, but on second thought figured asking here to be best to avoid an " I told you so" if they do leak. Assuming the 452's are the correct if I need to buy a set, would you run them or replace them before putting the heads on this weekend? Thanks Allen '05 Quad cab hemi truck- Flame red- magnaflow exhaust 70-440 cuda- 74-360-4v Challenger- new driver car EX vehicles: 66 charger Drag car- 10.80 at 123 mph 57 imperial 392 Hemi 1960 Sanger V drive- mondello-built 392 hemi

Re: BB seals need valve tower modification? [Re: hemiallen] #1175754 02/10/12 12:23 AM 02/10/12 12:23 AM
Joined: Jan 2003 Posts: 32,930 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,930 Grand Prairie,Texas	After 6 years I think I would go ahead and change them out while you can get to them. They are probably dried out by now.

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