Another great vintage listing from Internal Engine Parts Group ! This listing is for a BEST Gasket rubber rear main seal set for 1959-64 Oldsmobile 371ci and 394ci V-8 engines. P/N 3A45. BEST Gasket is the leading name in sealing performance in the restoration industry. Image shown is an actual factory supplied picture. ***Due to engine machining variances, seal performance may vary.***
Ever since the big gasket manufacturers discontinued using asbestos in the 1990's, rope rear main seals have been a huge problem to the vintage car enthusiast. The non-asbestos rope seals available from the big boys are next to impossible to trim and do a poor job of sealing. BEST Gasket has developed rubber replacement seals for many engines where only rope seals have previously been available.
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