In restoring a 57 fuel car we are looking for a replacement exhaust manikfold and have found one BUT:
Original casting number is 3733975 GM,
replacement number is 3733975 GM T (embossed). What does the recessed "T" mean? (SEE PICTURE)
Any help or things to look out for would be appreciated. thanks
Original casting number is 3733975 GM,
replacement number is 3733975 GM T (embossed). What does the recessed "T" mean? (SEE PICTURE)
Any help or things to look out for would be appreciated. thanks
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