CNC-Motorsports offers main bearing spacers that allows the use of different crankshafts main journals in different main journal engine blocks.
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CLE-MS1110H PART NUMBER
MS1110H Clevite 77 H Series Main Bearings - SB Chevy 283 to 350 Main - STD size$217.95
Allows the use of a 283 Main Crankshaft in a 350 Chevy Main Block, STD Size, H Series, Set of Main Bearings Learn More -
CLE-MS1110H-1 PART NUMBER
MS1110H-1 Clevite 77 H Series Main Bearings - SB Chevy 283 to 350 Main - .001 Oversize$218.95
Allows the use of a 283 Main Crankshaft in a 350 Chevy Main Block, .001 Oversize, H Series, Set of Main Bearings Learn More -
CLE-MS1564P PART NUMBER
MS1564P Clevite 77 P Series Main Bearings - SB 350 to 400 Main - STD size$320.95
Allows the use of 350 Crankshaft in 400 Chevy Block, STD Size, P Series, Set of Main Bearings Learn More