Galloway Engines


Your One-Stop Shop Shop Products

To complement our extensive machine shop capabilities, Galloways can supply engine parts for almost any application. Our liaisons with numerous Australian and international automotive companies allows us to provide a world-wide part sourcing service.

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Holden Grey motor billet main cap set

add considerable strength to your Holden side plate engine with these main caps, often considered a real weak point of these engines

includes 2 centre main caps

manufactured to fit into original register of the block, will require line boring of block.

Due to the increased material around the bolt holes these will not work with standard bolts, we have ARP main studs available.


  • Make
  • Model
    Holden Grey motor 132-138 1948-1963
  • Material
    1045 billet steel

Need a rare part? We have access to a wide range of hard to find parts.

Our motto is if we can’t find it, we can remanufacture it! With the best restoration machinery and over 25 years experience, rest assured we can restore any speciality engine that you have under the hood. Contact us today and let’s get your beauty back to it’s prestine form.

Galloway Engines source all quality performance brands

  • Edelbrock
  • CP Carillo
  • ARP Racing Products
  • Darton Sleeves
  • Crow Cams
  • JE Pistons
  • Scat Crankshafts
  • Powerbond Harmonic Balancers
  • Manley
  • Mahle
  • Fel-Pro
  • SRP Racing Products