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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
Borowski Race Engines was at the front of the line for the latest Dart LS Next product release
25" Emission Code 5 Height 5
We are not fans of the excessive lightening we see on other billet blocks
THEY ARE ONLY AVAILABLE FOR PURCHASE FROM US AS PART OF A SHORT BLOCK OR LARGER BUILD
That power level is way beyond the capabilities of a stock cast crank and powdered metal rods
370ci LS Shortblock for Boost with Callies 8 CWT Crank Piston:Flat Top Borowski Race Engines was atThis short block is intended for light boost to about 1,100 crank horsepower. The Callies Compstar center counterweighted crank with stock stroke brings a lot to the party. Having 8 instead of 6 counterweights increases stiffness by 25%. Harmonics are reduced because each cylinder has its own two counterweights. These two factors combine to minimize crank flexing thereby protecting the block, bearings and rods from excessive wear and fatigue. We have
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