Engine Parts?
 

So new engine going in. SO i have a few questions and opinions.

A) How important are teflon coated water O ring, and Viton oil control rings vs Stock

B) Single heavy duty apex seal springs (like Atkins) or Duals like (Hurley)

C) the importance of balancing the assembly if you're never going over 7.5K rpms and you have matching rotors.

Looking to make close to 400 hp. nothing is stock anymore! well the tranny.

25 views and no replies? C'mon.

how can u expect to make 400hp but plan on not reving over 7.5k? anyway, when i built my sp 13b, i used the viton oil rings only cause i got them really cheap from a guy on the parts trader, everything else was gotten thru a local racer here were he gets his stuff, Mazda.

And why 7.5k rpms? That is lower than the stock redline. Generally, no balancing or special internal modifications are necessary unless going over 8,500 rpms (some people may say more)

If you are looking to make clost to 400 whp, then your best option is sticking with the factory components.
I'm not sure which year/model of engine you have, but the FD internal components are prefered as there are upgraded parts such as corner seals and stationary gears.

So to sum this ramble up, use the stock rebuild components. No need for special modifications or balancing.

Profile says GTX, which would make it a TII, giving it a 7000 rpm redline.
Depending on year, though, he might have the internals to support the 8000 redline like the FD's have, just not the ECU, turbo, or manifolds.