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Chevy small block, small journal H-beam connecting rod.
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  5. Chevy small block, small journal H-beam connecting rod.
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Chevy small block, small journal H-beam connecting rod.

By maticulus

The connecting rod had to be narrowed. The 3500 non VVT and 3500/3900 VVT motors all share a 2.250 crank pin diameter instead of the previous 2.00.

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    3900

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