Not Ranked
To put a one piece rear main seal in an early windsor block, one needs to cut the back of the block and the rear main cap to accept the seal, while the block is mounted in the line honing machine. This is labor intensive, not to mention that many shops forgo the line hone to begin with.
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In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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