




RIMAC has built precision engine building tools since 1929, and its famous "Big Blue" valve spring tester has been the standard for engine builders for decades, so much so that original testers still command near $1,000 on auction sites. Now part of the PROFORM family, RIMAC is back with the quality and accuracy that made it a legend.
Part number BB0500 tests springs from 0 to 500 lb.
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