Ford Mustang Forum - View Single Post - 3.8 to 4.2 using stock Ford components - What is needed
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post #4 of (permalink) Old 03-04-2011
slickbullet5150
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Joined: Mar 2011
Location: Elk grove
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"NO REPLACEMENT FOR DISPLACEMENT" 4.2 out of the same year ford truck is a straight forward swap,swap over your upper and lower intake manifold, pan, flywheel, electrical, etc, bolt in swap, pick- n-pull $180 plus core and tax, for the long block, tear down reseal kit, (head gaskets, oil pan etc,).... SO for aprox 400 bucks what bolt ons can you get for your 3.8 that will give you double digit gains, and you can still do your bolt ons and add moore hp and tq... 4.2 swap.....
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