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Bay Window Conversion Kit

Bay Window Conversion Kit

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Starting at $5,825.00


Subaru Engine Size

Engine Size*:

Clutch Kit:

Exhaust Kit*:

Shorten Steel Oil Pan:

Fuel Delivery

Fuel Tank:

Fuel Pump:

Fuel Pump Mount:

Manual Transmission Throttle Cable*:

VW Bay Window Harness Service

Harness Service*:

Description Installation Instructions
The most refined, most complete kit for repowering your 1972-79 bus with modern, powerful and reliable Subaru power.

Through exhaustive research, refinement and real-world testing, we've provided the most effective cooling solution, the most durable engine mounting system and the best fit and finish on the market. The Rocky Mountain Westy kit is designed to be an inclusive DIY solution for repowering your Bay Window Bus. We’ve spent countless hours engineering our products and countless miles testing them.

Our kit includes: engine mounting, complete cooling system, air intake, complete mandrel-bent stainless steel exhaust, engine to trans adapter, radiator/fans/relays, throttle body reverser and throttle cable and much, much more.

Designed to use SOHC EJ25 Subaru motors from 2000-2004, we also have an option for people that prefer the 2.2L.

Please click here for the Colorado legal kit.

Please note: Conversion kits are a custom order and can take 3-5 weeks before ready to ship complete.

Throttle cable barrel measurement is based off the Subaru throttle cable end at the throttle body.

Single or Dual port exhaust is based off your Subaru donor engine: 2 studs per head = Single Port; 3 Studs per head= Dual Port.
Please be sure to choose the correct engine size, exhaust option, and throttle cable.

Please email us to discuss modernizing YOUR beloved bus!

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RMW Products > VW Bus Bay Window Conversion > Bay Window Conversion Kit