258 swap to 304 - JeepForum.com
 
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post #1 of 2 Old 01-01-2012, 05:59 PM Thread Starter
CadCaman
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1983 CJ7 
 
Join Date: Sep 2006
Location: Michigan
Posts: 75
258 swap to 304

I bought a 304 engine. I am bringing it to a local engine shop for rebuild. I just want about 250 horsepower out of this. Can you help we with what I should be asking for, buying, etc..

I am a novice but here is what i know (or think I know).

83 cj7
auto transmission
258 in it now.
I am not sh*tcanning the 304 and going with a 360.
I see this going something like this:

1. Engine rebuild.
2. I buy water pump, 4-core radiator, alternator, electric fan, intake manifold, carbuerator, HEI (what else am i missing?).
3. Get transmission rebuilt.
4. Put engine in with new mounts.

Can you guys help we with advice?

Thanks

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post #2 of 2 Old 01-01-2012, 06:06 PM
lucdog
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1980 CJ5 
 
Join Date: Jul 2006
Posts: 8,746
You will also need the passenger side motor mount bracket, that bolts to the frame,
The proper flex plate for your 304/transmission.

I cool a stock 360 and 304 with a 3 core radiator.

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
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