Hello,

i have been offered some 98 Impreza heads with cams, valves, etc..for 100 quid, and wanted to check these will fit onto the legacy single turbo engine? see if i can sort that tap, tap, tap...

 

dont think they will mate too well, as they are phase 2.

unless they will be ok with your exisitng inlet manifold?

you will also need impreza pistons if you ever want to increase boost etc.

 

not quite right dan...

98 is phase 1.5 so phase 1 inlet will bolt on..

You need to work out the cylinder volume, dish capacity, gasket thickness.. but yes.. should work.

David

 

nice try and cigar!

Basically wack em on and fingers crossed!

 

LOL..

as long as the piston will clear the valves then you may be ok, but obviously you need to check valve to piston clearances and also whether the CR change will effect your map..

Dan...

Why is work so boring.. I might pull your pc's power lead out later

 

translation - put impreza pistons in

Work is boring!
you pull my power out ill tell everyone you have a mondeo!

 

Hehehe, cheers guys...lol

 

we done the head swap thing well worth it i think kept the legacy pistons needed impreza headbolts and a slight mod to a timing cover other than that it runs well.

 

you cant just shove heads on a different block, you must check the clearances and dish volume etc..

Even with std boost it could run /lean /rich / det etc.

David

 

Do the later heads (MY97 on) have the thread in them to secure the coil packs from early imprezas?

Tony.

 

not as far as I can remember, but they wont come off..

 

there is a bit of a cobble up with some brackets to hold the coil packs in place but is spot on with all readings on a select moniter