highport lowport head swap

I have a 91 G-20 (that would be low port head I think) that has 165K and runs great. Problem is after 11 years of Wisconsin's salt, rust is starting to pop up on the sill below the driversdoor/ front 1/4 panel. I have a Hotshot header and AGX shocks the rest is stock. I will soon be looking for a newer ('95 or '96) G20T (that would be a high port head I think).
QUESTION 1) Is there anything to be gained by swaping the heads on the '91 I have and the '95- '96 I want?
QUESTION 2) Will the Hotshot for the '91 I have fit the '95-'96 I want?
QUESTION 3) I understand the '91 had stiffer springs then later years, should I also swap the springs/shocks?
Thanks

Geo verified that the stiffer/softer spring dealie was false.

The header will work fine both places, you will need an AIV plug.


I wouldn't bother swapping in any engine unless it was a DET. :)

The 91' is the Highport , 94 and up is the lowport. It's because the engine design would have you assume that the 91' sr20de is the low.

:flash:

OK, springs are out shocks are in and the header is in.
Lets go back to the head itself and not the engine. The head swap is pretty easy, and I understand that the intake cam, combined with its head configuration on the '91 was the hot ticket. What about it?
Thanks
rusting slowly but picking up speed
Pete
PS: I bypassed/removed all the AIV on the '91