1971 ls5 gaskets
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Joined: Oct 2007
Posts: 52
Likes: 3
From: Richmond, VA area
1971 ls5 gaskets
I'm in the process of replacing leaking/brittle gaskets and seals. When taking the factory cast iron exhaust manifolds off the engine there are no gaskets present. Is this kosher? The original 454/365 engine was replaced under warranty (12 mos / 12k miles) by the dealership and I wonder if they just left them out?? If I remember correctly the normal replacement process for a crack in the engines water jacket was to replace only the short block, removing and reusing as many of the original components as possible. The engine pad is stamped with the C.E. and numbers I believe to be the date of replacement?
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
new they had no gaskets. next time they get bolted together they ain't new anymore. too hot for any goop. i use white Mr. Gasket header gaskets, but so far all my big blocks went into boats.
