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5.4L FORD MODULAR
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ECONOMICAL "H" BEAM STEEL 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.
Center-to Center Big End Bore Big End Width Pin Bore Gram Weight
  5.4 L Stock length
14040-8 14040R-8 6.657" 2.239" .940" .8671" 645
P/N 14040 will also work for the 6.8L V10 modular
 
PRO SERIES "I" BEAM STEEL 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 7/16" ARP 2000 alloy cap screws.
Part No. Description Center-to Center Big End Bore Big End Width Pin End Width Pin Bore Gram Weight
  LIGHTWEIGHT
14319-8 Stock Length w/ 22mm pin 6.657" 2.239" .940" .940" .8671" 620
  STANDARD WEIGHT
14321-8 Stock Length w/ 22mm pin
Heavier beam for forced induction applications
6.657" 2.239" .940" .940" .8671" 725
  300M ALLOY
15321-8 Stock Length w/ 22mm pin
Heavier beam for forced induction applications
6.657" 2.239" .940" .940" .8671" 739
P/N 14319, 14321, and 15321 will also work for the 6.8L V10 modular
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