ho head swap - JeepForum.com
 
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post #1 of 10 Old 08-09-2013, 06:08 PM Thread Starter
Bigdlensch
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ho head swap

Anyone tried swapping heads from the newer 4.7 ho heads and intake to the older 4.7? I know the newer motor makes more HP just wondering if this would be feasible.


Super slowmo build, 2006 grand cherokee limited 4.7, flowmaster 40, k&n cai, superchips, shorty antennae, 08 Jk Sahara takeoffs w/stock duelers
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post #2 of 10 Old 08-10-2013, 12:03 AM
modernblueWK
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Newer 4.7 has 16 spark plugs so you would have to sort that out.

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post #3 of 10 Old 08-10-2013, 01:22 AM
twistedlizard72
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Maybe get some cams from a WJ 4.7 HO? The WJ 4.7 HO made 265 hp vs our 235 in the WK. I've also heard chatter that the gen 2 4.7L intake manifold will fit the gen 1 motor. You would have to add a spacer/adapter to get the throttle body to fit being its a different bolt pattern.

Kevin K.

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post #4 of 10 Old 08-10-2013, 06:37 AM Thread Starter
Bigdlensch
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Thanks for the replies, didn't know the newer 4.7 had 16 plugs. I could probably figure out the throttle body situation. Was asking because I know of a totaled wk2 ( smashed rear end).

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Super slowmo build, 2006 grand cherokee limited 4.7, flowmaster 40, k&n cai, superchips, shorty antennae, 08 Jk Sahara takeoffs w/stock duelers
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post #5 of 10 Old 08-10-2013, 10:29 PM
modernblueWK
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Wk2 has either the 3.6 v6 or the 5.7 v8. No more 4.7 after 2009.

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post #6 of 10 Old 08-14-2013, 05:35 AM Thread Starter
Bigdlensch
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Wow I guess I really don't know much about the wk2. To be honest I'm still learning about my wk, haha. Just trying to milk some cheap horses out of this 4.7.

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Super slowmo build, 2006 grand cherokee limited 4.7, flowmaster 40, k&n cai, superchips, shorty antennae, 08 Jk Sahara takeoffs w/stock duelers
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post #7 of 10 Old 08-14-2013, 05:59 AM
paroxysym
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Quote:
Originally Posted by Bigdlensch View Post
Wow I guess I really don't know much about the wk2. To be honest I'm still learning about my wk, haha. Just trying to milk some cheap horses out of this 4.7.

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tuner, exhaust- muffler and hi-flow cat, intake, throttle body, powerwire, and maybe a shift kit... probably the best youre going to do till you start swapping cams/heads/manifolds.

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post #8 of 10 Old 08-14-2013, 07:00 AM Thread Starter
Bigdlensch
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Quote:
Originally Posted by paroxysym

tuner, exhaust- muffler and hi-flow cat, intake, throttle body, powerwire, and maybe a shift kit... probably the best youre going to do till you start swapping cams/heads/manifolds.
Ya I've got intake and exhaust and tuner. Going to pick up another throttle body and have some fun with my grinder. This may be a stupid question but what do you mean by power wire? Haven't found much aftermarket for this engine.

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Super slowmo build, 2006 grand cherokee limited 4.7, flowmaster 40, k&n cai, superchips, shorty antennae, 08 Jk Sahara takeoffs w/stock duelers
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post #9 of 10 Old 08-14-2013, 08:31 AM
paroxysym
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Quote:
Originally Posted by Bigdlensch View Post
Ya I've got intake and exhaust and tuner. Going to pick up another throttle body and have some fun with my grinder. This may be a stupid question but what do you mean by power wire? Haven't found much aftermarket for this engine.

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check out airram.com, they have a couple mods for 4.7s.

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post #10 of 10 Old 08-14-2013, 10:45 AM Thread Starter
Bigdlensch
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Quote:
Originally Posted by paroxysym

check out airram.com, they have a couple mods for 4.7s.
Wow thanks, thats the most I've seen for this engine! Looks like I've got some saving and work ahead of me!

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Super slowmo build, 2006 grand cherokee limited 4.7, flowmaster 40, k&n cai, superchips, shorty antennae, 08 Jk Sahara takeoffs w/stock duelers
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