We have all been too quick to rebuild or buy a rebuilt engine in the past- just because "it smoked a lot " and jumped to the conclusion the engine was " tired and worn out". I have driven (2) of the early 60's 390 cu.in. to over 200K and found the rings do not wear out even with that mileage. Yes, blow-by the rings occurs but not because the rings are "tired". It occurs because the ring grooves get so encrusted with carbon, the rings no longer expand and contract traveling up and down the tapered cylinder walls. Cleaning carbon out of the grooves as indicated in my previous reply is the answer as all early T-Bird owners are faced with a $1-$2,000 rebuild . Of course the 390's need front/rear seals + Main and rod bearings if oil and filter changes have been neglected but that is considerably less expense that a complete rebuild. In additon, it is impossible today to find a mechanic who has the training, education or experience or equipment or willingness to do the job right. The bottom line of the above. Make every effort to get your Dream Car that has had proper care and maintenance over the years.
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