4A-GE 20V + 6Speed + 1.8l displacement, omg, am I crazy only thining it? Advices please!! Options

[Demios]

Hi there!
I'm sooo excited! I just read some info on the web about the last 4A-GE 20Valves built for some Corolla and thought this:

Is it possible swap a 4A-GE 20Valves (it doesn't matter if a Black or Silver top, the difference explained in the documents I read is not that much) into a Celica with the 6 speed manual gearbox made with some blacktop?

And secondly, is it possible and wise increase the displacement of the engine from 1.6l to 1.8l? If yes 'cause this doesn't give problems to the intake and this one is large enought to support 0.2l more, wich parts must be used? I mean, the only difference is the stroke so i need the 7A block or i can do that with something smaller?

[TiGZ461]

GT-S specifications

* Chassis Code: AE86 (AE88 in USDM)
* Horsepower: 112 hp (84 kW) @ 6600 rpm* Torque: 97 ft·lbf (132 N·m) @ 4800 rpm*
* Weight: approximately 2200 lb (998 kg) to 2400 lb (1089 kg)
* Engine: 4AGE, 1587 cc
* Engine Type: DOHC 16-valve Inline-4 AFM Multiport Fuel Injection w/T-VIS
* Transmission: T50, 8-bolt flywheel
* Injector Size: approx. 180 cc, low impedance
* Compression: 9.4:1
* Differential: 6.7" Open (T282) or optional LSD (USA Only) (T283) with 4.30:1 Ratio, 2-pinion
* Wheels/Tires: 14x5.5" +27 mm Offset Rims with 185/60-14 82H Tires (195/60-14 85H for 86+ models)
* First 7 Digits of VIN: JT2AE88


Is the weight that much of a big deal ??? A ST as said with dry weight weighs in at about 2,395 to 2,495 and as shown above, the Celica really isn't as heavy as you say compared to the AE86's weight, why won't this swap be useful again?