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Topic Review (Newest First)
09-04-2011 08:55 PM
prosneek If you go to Jeepforum.com there are multiple posts about this. If you change to a sbc then you will have to change a whole pile of things under the Jeep. Is it worth it to do this? That is a question only you can answer. You will be gaining more power and torque but also gaining a ton of extra weight.
09-04-2011 08:45 PM
1 sideways Search this site for sbc motor swaps
09-04-2011 11:14 AM
fonz3482
What should I do?? Engine and trans issues!

Ok, so I bought my yj 3 weeks ago and tried to get it road worthy. When I got all the basic work done,(brakes, oil change, brake lines, radiator, random bulbs replaced, removed front and rear trac bars, ground down, painted the frame, tires, and wheels) I registered it only to find out that the motor makes a loud ticking noise, runs kinda rough, and the trans grinds the gears on down shifts into 3rd. Heres what I did:
I put some cleaner in the engine in hopes it would free up or clean out the noisey lifters. I changed the trans fluid and bleed the clutch. Then I drove it twice for a total of 20 miles. The trans work great for @ 5 miles, then started to grind 3rd again on downshifts, and now it grinds 4th on upshifts. The engine just got LOUDER. Now the next step is to re-bleed the clutch, and change the trans fluid again. For the motor Im gonna change the oil with a motorcraft fl-a1 filter and some marvel mystery oil. HOPEFULLY this works!!
If not heres my question: I have a chevy 305 thats in perfect running order and a ton of performance parts laying around. I pulled the 305ci out of my 84 monte ss and swapped in a 383ci. Is it easier/ cheapier to swap a sbc into the yj then to remove my stock motor and trans and rebuild both?? I figure @ $600 to rebuild the stock trans, and $1200 to rebuild the motor. Im not worried about the wiring or install of a sbc, just the cost of fitting it into the yj and making it work. So any advice or help would be great! Thanks everyone!!

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