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52 Posts
alright so iv had my 89 yj for for three years now and like most people after a couple years i now have the urge to obtain more power and be able to once again be able to travel at highway speeds with my oversized tires.
so heres what i got so far..
1989 yj with the 2.5 low output
4 in suspension lift
1.25 shackle lift
33x12.5x15 mickey thompson baja claws on 15 inch mickey thompson sidebiters
so i began to think about all the engine possibilities and first thought about the usual chevy swap but then found someone with a 74 amc 304 with the matching 3 speed manual t15 tranny. i like the idea of using this engine because as far as i know it is the only factory offered v8 ever available in a jeep wrangler with the earlier year being more powerful. however i am by far no jeep expert.
i planned to keep the 304 mostly stock with the only mods being a 4 barrel/new ignition/milder cam ect but then found a supercharger kit available for it and fell in love with the idea of having a "sleeper" and opening the hood to shock people with my amc blue painted beast.
now i know everyones first reaction will be to just go get a 360 or 401....
and i am not interested in that so with that being said i would like to start getting some answers to my main questions before i begin to get the machine work done and continue planning this thing out.
first of when building the engine is there anything specific i need done knowing that eventually a supercharger will be equipped?
what kind of power can i honestly expect out of such a engine?
will i be fine just replacing the reared with a maybe built ford 9 inch?
what gear ratio should i be looking at considering this is and still will be my dd?
i have only read other v8 swap stories and have no experience with any myself so any help will be appreciated and the questions will increase as the build developes
once i figure out how i post pictures i will
thanks in advance
so heres what i got so far..
1989 yj with the 2.5 low output
4 in suspension lift
1.25 shackle lift
33x12.5x15 mickey thompson baja claws on 15 inch mickey thompson sidebiters
so i began to think about all the engine possibilities and first thought about the usual chevy swap but then found someone with a 74 amc 304 with the matching 3 speed manual t15 tranny. i like the idea of using this engine because as far as i know it is the only factory offered v8 ever available in a jeep wrangler with the earlier year being more powerful. however i am by far no jeep expert.
i planned to keep the 304 mostly stock with the only mods being a 4 barrel/new ignition/milder cam ect but then found a supercharger kit available for it and fell in love with the idea of having a "sleeper" and opening the hood to shock people with my amc blue painted beast.
now i know everyones first reaction will be to just go get a 360 or 401....
and i am not interested in that so with that being said i would like to start getting some answers to my main questions before i begin to get the machine work done and continue planning this thing out.
first of when building the engine is there anything specific i need done knowing that eventually a supercharger will be equipped?
what kind of power can i honestly expect out of such a engine?
will i be fine just replacing the reared with a maybe built ford 9 inch?
what gear ratio should i be looking at considering this is and still will be my dd?
i have only read other v8 swap stories and have no experience with any myself so any help will be appreciated and the questions will increase as the build developes
once i figure out how i post pictures i will
thanks in advance