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#1
10-29-2011, 02:50 PM
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1973 Trans Am Question
I worked on a very nice '73 TA yesterday, did a rear main seal on it.. 455 auto, original engine. Anyway, the block was drilled and tapped (except one hole) for 4 bolt mains but it had 2 bolt caps. Was this normal? Why drill and tap them and then use 2 bolt caps, and why tap all the holes except one? I'm confused.
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