celica head swap

[Dirtracer16]

What head could i put on a 93 celica to get more compression?would a head off a 2.0 camry or celica fit on a 93 celica 2.2? what could we do to get the most horsepower without using a chip. also what is the max to shave off a head to be safe? we dont run an exhaust or a header. or is there a way t0 put an exhaust manifold off a 2.0 camry on a 93 2.2 celica?

I also posted this in the celica forum for more imput.

[boi_si]

u can modify a 3sge head to fit on the 5sfe block. since u have the 5th gen celica do the 3sgte swap, its more worth time and $$$. but if ur looking to put as much power out of a stock 5sfe i rather look towards the later model 5sfe, maybe the late 90s camry/celica 5sfe. probably have a different head setup and intake manifold.

[marc780]

After 30 years of wrenching you learn how to save yourself trouble and extra work sometimes...and heres my advise, only put on a head from the SAMe engine and same car - and not try to be creative using something from another model even if it uses the same engine.

heres why, they change stuff on the engines all-the-time, sometimes even on the same engine in the same model year! So you might buy an expensive head and it might look like it fits and even bolt up ok but then you might find out that a cooling passage was relocated that year or something - and your expensive part is worthless...

If you want more compression (planning to run a turbo or something) the usual way is to change the pistons and shave a little off the heads. But even pros think twice before doing stuff like this. Raising compression requires higher octane fuel as you probably already know, but your attempts to raise compression may turn out to be too effective and you might wind up with an engine that detonates (preignites) all the time and that cant be fixed.

If you want more power and the smog laws are liberal in your state, the best way is to rebuild the engine, bore it out as far as the machinist says you can, run bigger pistons and bigger valves and a more aggresive cam, and bolt on some headers to help the breathing. This wouldn't be cheap and you might not like it for the street (idle) but this is the sure way for more power.