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The H-Beam design doesn't work... without producing unacceptable side effects. Because the oil passage must be drilled through the center of the rod section, the hole size is dramatically limited. Oil flow through a center drilled oil passage can be shut off completely during the power stroke. Plus, beam strength can be significantly affected-unless the center section is thickened to compensate. In the end you get a heavier rod that doesn't effectively lubricate. |
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That makes the OLIVER Parabolic I-beam perfect! The
naturally thicker sections provided more than twice the lubrication
potential- without weakening rod strength or increasing weight.
Offset passages deliver lubrication all the way around the wrist
pin. OLIVER Parabolic I-Beam connecting rods are available with
single or dual Lube-Tubes. Call us to order right now! 603-378-0090 |