What Is The Difference Between Ej255 And Ej257 - The difference is the piston dish and heads. The engine is still in use in other parts of the world, as of 2020. The ej255 heads actually flow better but have a shallower dishing. Web the real difference between the two is with the heads and fueling. Web the blocks themselves are identical. Ej255 has the same block, crank, (forged) rods, and b25 heads as an ej257, only difference is the shape of the pistons and thus. Excellent numbers for a relatively small 2.5l flat four boxer engine. The ej257 and ej255 share the same block castings, crank, and rods. Web the 255 in different models is different (ie the 255 in the earlier lgt, fxt, baja etc is different to the 06+ model, and closer to the 257 in the sti), there are slight. So don't drive under 3k rpm's i'm not particularly blown.
Excellent numbers for a relatively small 2.5l flat four boxer engine. Web the ej257 is one more turbo version specially designed for wrx sti. In this guide, we explore the. The engine is still in use in other parts of the world, as of 2020. Ej255 has the same block, crank, (forged) rods, and b25 heads as an ej257, only difference is the shape of the pistons and thus. Subaru of america designates the same part numbers for an ej255 shortblock, and ej257 shortblock with. Web crawford actually claims that with just forged pistons, the ej255/7 can both handle up to 500whp. The ej255 heads actually flow better but have a shallower dishing. The difference is the piston dish and heads. Web the real difference between the two is with the heads and fueling. You wouldn't believe it if i told you. The difference in size between the two comes down to the. The ej257 and ej255 share the same block castings, crank, and rods. Web the main differences between ej255 and ej257 that ej257 uses new low compression pistons (compression ratio is 8.0) modified heads with changed combustion. Web the ej255 has a different domed piston vs the ej257. Web originally posted by lavid2002. Web ra gears with 4.44 fd makes a world of difference on the ej205. Web the 255 in different models is different (ie the 255 in the earlier lgt, fxt, baja etc is different to the 06+ model, and closer to the 257 in the sti), there are slight. So don't drive under 3k rpm's i'm not particularly blown. Rumor on the street is that the.