89-up 2.5L crankshaft

[nvysion]

I would like to know if the NA and Turbo crankshafts are the same.
Thanks

[86Shelby]

Yes. They are identical.

[nvysion]

Thanks
Are the heads the same (except the exhaust valves) ?

[supercrackerbox]

Enough to work. The NA heads are (usually) not drilled and tapped for the bolt that holds the support bracket for the turbo coolant return line.

[GLHS60]

Combustion chambers are slightly different in a Turbo swirl head. They are usually stamped on the end.
C.D = cross drilled ( all turbos after 1989- most TBI )
T.S - tapered shroud (turbo) 1986 up.

Thanks
Randy

[nvysion]

Despite these differences, can I still use a NA 782 head if I only change the exhaust valves.
Can I bolt the shroud ?

For the NA G-heads, they are not cross drilled aren't they, but can I still use one with a CB ?

Thanks for your help.

[ShelGame]

Despite these differences, can I still use a NA 782 head if I only change the exhaust valves.
Can I bolt the shroud ?

For the NA G-heads, they are not cross drilled aren't they, but can I still use one with a CB ?

Thanks for your help.

The T.S. (tappered shroud) indicates that the intake valve has been unshrouded in the combunstion chamber. It's an extra machining operation that was performed on the chamber to improve (slightly) intake port flow for the turbo heads.

[nvysion]

Thanks.
So if I have well understood, this difference (TS) only applies for the swirl heads, NA et turbo G heads are the same, right ?

Louis