i have fixed everything and painted some areas...my engine bay is in total flat black with red chillies in the center...heh. will post the pictures when i figured out how to soon.. anyway. i have dynoed the motor and here are the results. - B5254S head, with over-bored combustion chamber to 7.64:1 (...

i just got back my B5254S head from the machine shop the other day. They bored the combustion area to mate the piston clearance (81.5mm) and at 2.00mm depth. This is the maximum depth achievable before reaching the valve seat. with this, i believe i am getting closer or similar to turbo head, at CR ...

wow! should i censor them?

thanks Lee. will do it in end Oct due to some financial...

will post some pictures when the project is done...and the dyno result too..

Lee, you mentioned that "the valves are completely different"...if i transfer all turbo valves from B5234T into NA head B5254S, would be safe to run?

i have inspected both engine's valves and the dimension are identical. about sodium filled....i dont know, cant see the surface differences..i will transfer all the turbo valves into the NA head just for safety. the head gasket for both engines are same, i assume the waterjacket should be same too? ...

Lee....Lee...where are you? shed me some light please.

To all who may have answers.. I have a ported NA head for B5254S (96' 850 2.5 NA) with all valve seals replaced and valve grinded, polished and weighed. i was thinking of putting it into my 2.3T5 block, together with its intake manifold and TB. Will it work? Compression for NA engine B5254S is 10.5:...

yeah...i think so. it would surely cost a bomb..i can get better deal with JE piston...Mahle price is beyond imagination....
and rods...rods...rods...where to get?

i love to explore..and this will be my journey in 2 mths time. till then, drive slow................

Please give me some idea... it has been almost a year with this hi-pitch sound (something like thin metals keep hitting each other-loosen screw....sometimes like there is small leak on the turbo so when you accelerate, it sounds like leaking exhaust too) around the engine...and i thought it was the ...