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Showing results for tags 'jeep 4.6l'.
Hello all! Hoping you folks can help me figure out my problem with a 4.6 stroker that I've built. After the first assembly there were no issues with the break-in process which followed the cam manufacturers directions using comp cams break-in oil and lube. I did the normal easy break-in driving for about 50-75 miles around town and then drove it to work, 50 miles one way. When I started it up after work it was knocking. The knock doesn't go away with time or heat, it gets quieter during running but slowing to idle it's there every time. I got it home and immediately tore it back down
Im looking at building a motor for my 83 Cj7 I have options, I have a 96 4.0 parts motor with 0630 head plus a spare 7180 head. I have two 258s one is a 1990 (006CL25 / EF3235444) the other an 80 (009C09 / 3235444). The 1990 258 i could just re-ring and drop a 4.0 head on, i wouldn't even have to plug the water jacket holes in the head as the 90 block is squared of on that side like a 4.0 block, re cam with a RV unit and i'm hauling like never before. Pretty strait forward. Or; Take the crank and rods from the 1980 block and put them in the 4.0 block. With this one i would keep