Arrow Precision Engineering Billet Steel Crankshaft, Standard Journal – TR2-4, Morgan +4

£3,950.00£4,250.00

  • Billet steel crankshaft suitable for TR2-4A & Morgan +4 designed by Racetorations
  • Manufactured in the UK by the world renowned Arrow Precision Engineering
  • 17.5kg Total Weight, 1.3kg (2.86lb) lighter than the original crankshaft
  • Standard size big end journals, original connecting rods can be used but we recommend BEN201A-SET or BEN201D-SET
  • Can be used in FIA race engines
  • Both the centre of the crankshaft and the big ends have been hollowed to reduce the rotating mass further while also increasing strength
  • Crankshaft can be supplied with or without superfinishing polishing process, see below for more information

Billet steel crankshaft suitable for TR2-4A & Morgan +4 designed by Racetorations and manufactured in the UK by the world renowned Arrow Precision Engineering. Standard big end journal size, original connecting rods can be used but we recommend BEN201A-SET or BEN201D-SET.
Both the centre of the crankshaft and the big ends have been hollowed to reduce the rotating mass further while also increasing strength. See BEN206 or BEN208 for the flywheel. The rear flange incorporates an 8-bolt flywheel fixing, see BEN242 for bolts. Each crankshaft is supplied with an individual data sheet outlining dimensions and weights specific to that particular crank. Max RPM: 8000.

This crankshaft has a total weight of 17.5kg. This is 1.3kg (2.86lb) lighter than the original item. By using standard journal sizes this crank can be fitted into FIA race engines.

This latest design of our billet steel crankshaft incorporates a modified rear flange to enable the use of a single piece rear seal replacing the original split type for a modern high performance seal. The seal kit can be found under BEN247.

Crankshaft can be supplied with or without superfinishing polishing process, this high quality finish reduces rotational drag, and increases fatigue life. Derived from the pinnacle of motor sport technology and used in most Racetorations engines. Select this product and the process will be completed before delivery.

Spigot bush & woodruff keys sold separately.

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