glen canlas

79 280zx 5 spd. from what i understand from searching is that i can use my stock block with a p79 head and turbocharge it? i want to be certain before i start buying everything.

s/cL3.0

You can yes.. The compression will be higher so you will need to make sure it is in tune good. It would probably be best to go with a complete P90 head and your block. I am doin a turbo swap but I got my complete turbo motor for 400.00 it was way worth it. Now all I need is the bigger turbo.

Bleach

well, the '79 block already has dished pistons in it, so putting a P79 on it will keep the compression low just like a factory turbo engine.

The pistons and rings may not be as strong, but they'll do for lower boost.

glen canlas

what would be the difference between putting a p90 opposed to the p79?

s/cL3.0

As far as I know the combutoin chambers are a little larger {only half sure on that} And I know the exhaust liners that are on the n/a heads are not there.

Bleach

Combusion chamber in the P79 and P90 is the same. Both are large combustion chambers and both have a 'closed' chamber desgin for better quench. Both have round intake ports. Both have the same size valves.
the p79 (non-turbo) has slightly smaller round exhaust ports with steel liners to burn off excess fuel.
the P90 (turbo) has square exhaust ports which are said to flow better

jfairladyz

Damn Bleach, you are well educated on your L28.

I give props where props are due.

And I give you props man.