4L stroked to 4.9

[Wrenches]

I have this engine built and before I swap into my 04 TJ I need to know what others are using for injector size and the what scanner I can use to flash the ECM for the larger injectors.


Specs:
4.0 inch stroke
.030 overbore
9.2 compression ratio (static)
Eldelbrock aluminum cylinder head
Rugged Ridge headers
505 performance stage II cam
68 mm throttle body

Five0 performance says I need 30lb injectors and a fuel pump with increased flow.

What say you? Thanks for any help.

[Cheromaniac]

Unless the crank's rod journals were offset ground, the stroke can't be 4". Even then, your stroker's displacement would be 4.7L (4710cc) rather than 4.9.
You're running a 49psi fuel pressure and you'll need injectors that put out about 28lb/hr at that pressure (assuming ~280 crank hp). The closest are the Bosch 0280155784 which flow 26.3lb/hr @ 43.5psi. The stock fuel pump should do fine.

[Wrenches]

Yes the crank was offset ground and i'm using H-beam rods and had to mill the block for clearance as well as making spacers for the main support. Thanks for you info on the injectors. I will attempt to find someone here in Colorado Springs that can do the tuning,