Cylinder Head

Cylinder Head

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Cylinder Head

Although Rolls-Royce did not publish torque tightening figures for the straight six engines we are often asked for them. From speaking to fellow members of the RRBSA we propose that you work to the following settings:

  • Main bearing caps 30 lb/ feet
  • Big end bearing caps 30 lb/ feet
  • Cylinder head bolts 40 lb/ feet

Please note that some heads were interchangeable. A guide to the part numbers used for the respective compression ratio is below, but please check the casting number on the head itself.

Compression Ratios:

  • 6.4:1 = RE10429
  • 6.75:1=RE19451
  • 7.27:1=RE16876
  • 7.20:1 =RE19451
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