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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
230 INTAKE 141 221 295 351 396 421 435
PORT VOLUME INT
Flow Chart CFM @ 28" H20 VALVE SIZE 0
OEM-type cast aluminum mounting bracket for "factory-installed" appearance and rigidity
DART BBC BIG M SPORTSMAN 10.2" DECK 4.25" BORE .842" STANDARD CAM BLOCK 31223354 230 INTAKE 141 221 295CALL SHANON AT 507 445 3235 FOR ANY QUESTIONS. Dart BBC Big M SPORTSMAN BLOCK #31223354 Main Caps: Ductile Iron Standard Main Bearing Diameter Deck Height: 10. 200 Cylinder Bore Diameter: 4. 250 (made to hone to 4. 25) The Dart Big M Sportsman block was designed to be a more affordable version of the highly popular Big M. The Sportsman block is fitted with ductile iron 4 bolt main caps, and features a redesigned lubrication system that oils all of the
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