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Stroker 4.6,4.7 & 4.9 motors

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Old 11-26-2008, 08:08 AM
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Default Stroker 4.6,4.7 & 4.9 motors

does anyone have one of these stroker motors in their jeep. If so can you tell me more about them...
Old 11-26-2008, 08:26 AM
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4.6l stroker here. More displacement, more torque, more horsepower, all without the expense and hassle of a v8 swap.
www.Jeepstrokers.com
Old 11-26-2008, 08:38 AM
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Anything over the 4.7 your playing with danger.....
Old 11-26-2008, 09:41 AM
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FrankZ.....were did you purchase the motor from and what was the cost. Did you have to get larger injectors and a fuel regulator..
Old 11-26-2008, 10:05 AM
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FrankZ seems like a guy that would be able to build his own.
Old 11-26-2008, 10:14 AM
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Ya I think Frank built his. From what I've read there not that hard to build, basicly if you can rebuild a motor you can build one...
Old 11-26-2008, 05:35 PM
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Originally Posted by Burns
FrankZ.....were did you purchase the motor from and what was the cost. Did you have to get larger injectors and a fuel regulator..
I bought a builder block from my local junkyard and grabbed the 12 counterweight crankshaft and connecting rods from a FSJ. The rest of the parts were a hodgepodge of goodies designed to make the most power for a reasonable amount of money.

I bought a set of Mustang 5.0L 24lb injectors off ebay.

The stock 97 fuel pump in my heep puts out 49psi and the FPR is not replaceable or adjustable.

A few links for those that areinterested in building a stroker.

http://www.jeepstrokers.com/forum/

http://www.angelfire.com/my/fan/stroker.html

http://www.jeep4.0performance.4mg.com/stroker.html

I'll try to answer any questions to the best of my ability, but I may make **** up from time to time to keep you guys on your toes.
Old 10-30-2012, 09:56 PM
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Default 4.9 stroker

im currently helpin out a bud witha cj5 with a 4.9 stroker, we found out it needs a fuel pump and coil after pulling some fuel lines and pulling out the distributor now when we crank the motor as soon as the carb gets fuel it seems like its got some sort of compression lock. the started will almost stop and barely crank. would this be caused by a timing issue
Old 10-30-2012, 10:09 PM
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Pull the plugs and see if the motor still spins.
Old 10-30-2012, 10:17 PM
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i know that its the fuel causing this, do i not have enough cranking amps to turn the compression stroke when there is fuel for it to compress
Old 10-30-2012, 10:19 PM
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Do as a I suggested...please.

If you have liquid fuel in the cylinders you'll never compress it.

Basic Physics:
You can compress a gas.
You cannot compress a liquid.
Old 10-30-2012, 10:23 PM
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thanks for the advice ill give it a try and see how it reponds when plugs are pulled and let ya know what its doin
Old 10-30-2012, 10:27 PM
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soif having the plugs out frees up the motor and lets it spin than my spark is off letting liquid fuel build up and compressing locking it?
Old 10-30-2012, 10:34 PM
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Yep.
Old 10-30-2012, 10:40 PM
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Originally Posted by 93bluexj
soif having the plugs out frees up the motor and lets it spin than my spark is off letting liquid fuel build up and compressing locking it?
Timing could be off or no spark at all. It means it is hydro-locking, do it and report back then go from there. if there is lots of fuel in the cylinders let it sit for 20-30mins with the plugs out to help dry the cylinders and the plugs. while you wait for a response for the next step.


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