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ECONOMICAL "H" BEAM STEEL RODS - learn more about our connecting rods - learn more about our connecting rods
Manley "H" Beam connecting rods are manufactured from 4340 forgings to the same exacting standards developed and approved by our original equipment customers. There is a vast difference in quality between a Manley "H" Beam and the "other" inexpensive H-Beams on the market. Weight matched to +/- 1.5 grams. Perfectly round big and small ends. Bend and twist is tightly controlled.
 
ARP 8740 Part No. ARP 2000 Part No. Description Center-to Center Big End Bore Big End Width Pin Width Pin Bore Avg. Gram Weight
  H-LITE
- - 14031-8 LS / LT1 .025" Longer 6.125" 2.225" .941" 1.060" .9281" 615
- - 14033-8 LS / LT1 .025" Longer 6.125" 2.225" .941" 1.060" .9457" 615
  H-BEAM
14051-8 14051R-8 LS / LT1 .025" Longer 6.125" 2.225" .941" 1.060" .9281" 655
14053-8 14053R-8 LS / LT1 .025" Longer 6.125" 2.225" .941" 1.060" .9457" 655
PRO SERIES "I" BEAM RODS - learn more about our connecting rods
Manley Pro Series connecting rods are forged from aircraft quality 4340 vacuum degassed material. Each rod is fully machined in the Manley Lakewood, NJ factory to the highest standards. Our signature "Pro Series Lightweight" design combines the appropriate weight and rugged strength for ultimate horsepower applications. Each rod is shot peened after machining and magnafluxed. Bores are held to exacting tolerances. Bend and twist is tightly controlled. Cap fasteners are ARP 2000 alloy cap screws.
Part No. Description Center-to Center Big End Bore Big End Width Pin Width Pin Bore Avg. Gram Weight
  LIGHTWEIGHT
14359-8 LS / LT1 .025" Longer 6.125" 2.225" .940" 1.000" .9281" 615
  STANDARD WEIGHT
14559-8 LS / LT1 .025" Longer 6.125" 2.225" .940" 1.000" .9281" 705
Heavier beam for forced induction applications
All Pro Series connecting rods are supplied with 7/16" ARP 2000 cap screw fasteners P/N 42390. Upgraded 7/16" ARP Custom Age 625+ cap screws P/N 42252 are available. To order upgraded fasteners, affix a "R6" after the rod part number.
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