Quote:
Originally Posted by Jim Hawkins
Is it worth the cost or necessary to put 4 bolt caps or fill the 721 block for a race car motor? This block I have was from a old modified motor. 3.935x3.00 292 cubes. Not filled and stock caps.
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I guess it depends upon the power and rpm. We put studs on ours, but kept the two bolt caps. Never had issues and went 8000 plus in our stocker.