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Old 01-18-2019, 08:04 AM   #1
Scooby Newbie
Member#: 470383
Join Date: Jul 2017
Chapter/Region: International
Location: Argentina
1994 Impreza GL AWD

Default EJ18 SOHC to EJ25 DOHC Heads

hello dears.

The owner of my ex-impreza wants to make a head swap.

The car is a impreza 95 EJ18 SOHC and want to put a Legacy 96-97 EJ25 DOHC heads, yes, only heads. ECU will be de original ej18, injectors, sensors, intake, etc etc.

When not finding information about it, we have some doubts, since they are old versions without so many sensors.
There will be any problem with intake manifold? Will the pistons touch the valves? From the one to ten, how efficient can swap be?

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