can I change a 4 cil to 6 cil
I have a 1988 jeep wrangler 4 cilinder engine can I change the engine to a 6 cil with out having to change the transmission and it will perform engine and transmition good

The 1988 Jeep Wrangler comes equipped with two engines, for power or for normal driving: the 2.5 liter I4 with 121 hp or the 4.2 liter I6, a 177 hp machine. Like its predecessor, the 1988 Jeep Wrangler has two available transmissions, a 3 speed automatic, or a 5 speed manual. Also like the 1987, the 1988 has two doors and four wheel drive, a true SUV for the off-roading fan.
Complete with air conditioning and even (gasp!) a cassette player, the Jeep Wrangler has every comfort you could expect from a 1988 SUV. The second in the line of vehicles that lasted 20 years, the 1988 Jeep Wrangler continued the new tradition of an outstanding SUV. While the 1988s may not be in the greatest condition today, they helped to establish what would become a standard of the SUV world.
I have a 1988 jeep wrangler 4 cilinder engine can I change the engine to a 6 cil with out having to change the transmission and it will perform engine and transmition good
Read where Freedom Tops are similar to Steel Horse Ultra-top. Looking for install instructions. Is there a pdf or video available?
Audio System
AM/FM radio
Roof
Convertible roof: hard top · Removable roof: soft top
Seats
Front seat type: bucket · Upholstery: cloth
Tires and Rims
Wheels: steel
Audio System
AM/FM radio
Convenience Features
Steering wheel: tilt-only
Roof
Convertible roof: hard top · Removable roof: soft top
Seats
Front seat type: bucket · Upholstery: vinyl
Audio System
AM/FM radio
Convenience Features
Steering wheel: tilt-only
Roof
Convertible roof: hard top · Removable roof: soft top
Seats
Front seat type: bucket · Upholstery: cloth
Windows
Front wipers: intermittent
Audio System
AM/FM radio
Comfort Features
Steering wheel trim: leather
Convenience Features
Steering wheel: tilt-only
Mirrors
Exterior mirrors: power
Roof
Convertible roof: hard top · Removable roof: soft top
Seats
Front seat type: bucket · Upholstery: cloth
Windows
Front wipers: intermittent
Audio System
AM/FM radio
Comfort Features
Steering wheel trim: leather
Convenience Features
Steering wheel: tilt-only
Roof
Removable roof: hard top
Seats
Front seat type: bucket · Upholstery: cloth
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent