engines....

[civic_ej6]

whats the best engine i should consider for a turbo application?lookin to have an ouput of at least 500horsepower..b20 with gsr head?

 

[blinx9900]

Any B-series is capable of that output, i personally would go with a straight GSR (B18c).

Either way your looking at doing the following no matter what engine you pick:
-sleeved block
-forged pistons
-forged rods
-head studs

You can always sleeve the GSR to 84mm, you can build a B20 also if you like or even a b16 is capable of that power.