How to swap a 2.5bottom disi head into a Mazdaspeed 6/3

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Parts you'll need:

OEM head bolts - part # L3K9-135A x10

Crank friction washers - part # 1S7Z-6378-AA you'll need 3 if you are using 2.3 timing components
Or 2 if you are using 2.5 timing components

Good cylinder head from a speed 3/6

2.5 bottom end - Source engine from LQK or local salvage yard, options include:

Mazda MZR 2.5 (non-sky) ~2009 to ~2013(Mazda3/5/6/Tribute)
Duratec 2.5(non-hybrid) ~2009-up(Escape/Milan/Fusion/others)

Speed oil pan,dipstick,intake manifold, exhaust manifold, turbo and other accessories.

About 1 ft of steel braided line for oil return and fitting from turbo out to return.

Turbo Oil Pan / Oil sump Return Drain Plug Adapter Bung Fitting 5/8" 16mm 90 DEG. Or similar for oil return line bought from Ebay

(Optional) balance shaft delete kit mazdaspeed on Ebay




This video is to help you swap a 2.5 bottom end with a 2.3 disi turbo speed head. This swap is intended to save you some money and help you increase displacement. I will add more info in the next couple of days