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Full Bridge Ported RX8 231 Rebuilt Engine

Mazda RX8 231 Full Bridge Ported Engine + Street Port for RX8 2003 - 2008
Full Bridge Port RX8 EngineFull Bridge
Sales price £1,850.00
Price / kg:
Full Bridge with Housing Port RX8 Engine
Refurbishd Mazda RX8 13B-MSP Engine in Black & Blue


Refurbished Mazda RX8 231 Full Bridge Port & Street Ported Engine

Full Bridge Port and Street Port using the Racing Beats template. It is design to increase the power by 20-30% whilst keep some road drivability of the RX8. The power gain is noticeable throughout the RPM range. At the same time this build price has been kept to a budget to ensure its affordable.

This engine will fit LHD or RHD 2003 – 2008 6 Port 231 Manual 6 Speed Mazda RX8. The refurbished Engine rebuild comes with the following new components:

  • New Apex Seals
  • New Apex Seal Springs
  • New Corner Seals
  • New Corner Seal Springs
  • New Side Seals
  • New Side Seal Springs
  • New Mazda Stationary Gear Bearings
  • Water Jacket Seals
  • Viton O-Rings (Rotor O-Rings)
  • Dowel Pin O-Rings
  • Rear Stationary Gear O-Ring
  • Front Cover O-Ring
  • Front Hub Bolt O-Ring
  • Front & Rear Main Seal
  • New Tension Bolt Seals
  • Replacement Thermal Bypass pellet
  • New Mazda Front Cover Gasket
  • Uprated Oil Pressure Regulator

The Street Port

The street port modifies the inlet and exhaust ports on each of the engine irons (Front, Intermediate, and rear). The inlet manifold tubes are also ported to match the front and rear irons. This is a stage 3 form of porting and does demand ECU map to performed on the RX8

The Bridge Port

The bridge port places a fine eyebrow shaped port over the inlet sections of the irons. It is carefully place to ensure it does not disrupt the flow of the corner seals and apex seal edges

Engine Painting

The engine can be painted or left unpainted. We use a 2K paint solution that is hard waring. Common combinations that we stock is Red & Black, Blue & Black. It is possible to paint the engine any industrial RAL solid colour upon request for a £45.00 fee.

Optional Installation

This engine can be installed at our Hayling Island Workshop for £350.00


This engine comes with 24k mile / 24 month warranty, whatever comes first. For full warranty terms and conditions please look under our faq section.


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Solent Rotary Ltd
Unit 5 Finchwood Farm
Copse Lane
PO11 0QB

Tel: +44 (0)2392 466395

Mob: +44 (0)7597 807759

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About Us

Solent Rotary Ltd Specializes in Mazda RX8 engine rebuilds, porting, servicing and sports modifications. Solent Rotary Ltd is based in Hayling Island a few minutes away from Portsmouth in Hampshire.