Turbo and NA cylinder head differences?

[Toy88T]

What other differences are there between them, besides the cams? Like....

Head casting?
Ports?
Int/exh valves?
flow?

Researching for a possible NA head pick up for rebuilding, and throwing it on my turbo. Thanks! :icon_wink

 

[Stretch]

From what I know they are the same heads.
eric

 

[Supra Blues]

I think they are the same too, save for the cams.

 

[Idealsupra]

same exact head... you can interchange them with no ill effects....

 

[madseacow]

and it's the intake cam correct?

 

[shaeff]

well, the castings of the heads changed, but i dont think it does anything to the performance. if you look at an early model head, it's a little difference in appearance than a late model head, but everything inside (except for cams, they changed with years) is the same.

-shaeff

 

[MA70Supra88]

http://www.mkiiitech.com/forums/viewtopic.php?t=167