I've heard that the smaller diameter means less bearing surface area which means less friction which means longer engine life/easier revving, but I'm not sure if this is true or to what degree.
I do, however, know that stock small-journal Chevy rods came with 5/16" rod bolts and aftermarket rods are a little more scarce and/or expensive.
I've heard that the smaller diameter means less bearing surface area which means less friction which means longer engine life/easier revving, but I'm not sure if this is true or to what degree.
I do, however, know that stock small-journal Chevy rods came with 5/16" rod bolts and aftermarket rods are a little more scarce and/or expensive.
This is true, a bigger diameter bearing has to travel a longer distance (circumference) from start to finish compared to a smaller bearing. (the circumference of the bearing is bigger on a bigger rod journal)
I've read a ton into this stuff, but I don't ever recall seeing back to back tests..
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