Walbro is the leader in fuel pump performance and reliability, we carry them for that very reason.  For a stock K24 all motor build, a Walbro 255 is perfect.  

Once you start throwing boost at these engines, the conversation gets longer on which is best.  We really like the Walbro 535 as it flows roughly 110lph more than a Walbro 450, and they both use the same amount of amperage.  Keep in mind you will need to have a larger feed and return line as the 535 flows so much fuel your base fuel pressure will be elevated to 50-60+ psi with too small of lines.

Generally speaking, you want 30% more fuel flow from your pump than what your injectors can provide.  Lost already? Don't worry we've been there, schedule a chat with our Build Advisor to learn more about building a fuel system the proper way for boost.

We do not include install kits with these pumps.  Many customers have different fuel tanks, surge tanks, or race cells, so please research your inlet sock needs and order accordingly.

Fuel pump options:

• Walbro 255lph - all motor builds (not rated for E85)
• Walbro 450lph - boosted cars with medium power goals
• Walbro 525lph "Hellcat" - boosted cars with massive power goals that need 2 or more fuel pumps
  • This pump requires a return line that is at minimum -6an, without this the base fuel pressure will be elevated
• Walbro 535lph "No check valve Hellcat" - Boosted cars with big power goals that want just 1 pump
  • This pump requires a return line that is at minimum -6an, without this the base fuel pressure will be elevated