cam up grade 4.0 swapp - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-03-2002, 07:26 PM Thread Starter
 
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cam up grade 4.0 swapp

just wondering I see a lot of u guys are swapping out 4.2 head, for the much inproved 4.0 H.O head .I hear 40 hp or so . Is this with the stock cam shaft or with an after market piece. thks b.b
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post #2 of (permalink) Old 12-03-2002, 07:31 PM
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Re: cam up grade 4.0 swapp

All the write ups that I've ever read use the stock cam. I've never seen a dyno of the 4.0 HO head, but after swapping mine, it was an improvement. I did swap the cam out and added MPI when I did my swap, so it's hard for me to tell how much credit to give to the head alone.
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post #3 of (permalink) Old 12-03-2002, 10:25 PM
 
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Re: cam up grade 4.0 swapp

Use the cam HESCO has dyno proven with the 4.0 head and MPI swap and you'll have a tiger by the tail.
It has a nice gentle rumbling 650 RPM idle, tons of torque, still pulls through 3500 and will rev to 5000.
Give Bennie a call ... (205) 251-1472
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