Quote:
Originally Posted by Purdy Swoft
You can use the early forged rear main cap on the 30-31 engines but you will need the shorter main cap bolts. I've used the modern style main bearing bolts with special washers on the last two of my engines. Berts would probably have the original bolts for the forged caps. The forged caps are said to be better and can be tinned, the cast iron style are not tinned.
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Purdy,I ran new threads down the bolts to get enough threads to tighten the cap.About 1/2+" was enough.Also are you going on the Talladega Track tour?Thanks Tom for that info.--Bill