Dorman intake Upgrade?
#1
Dorman intake Upgrade?
Hi fellas, just replaced the OEM plastic manifold on my 01 5.4 this weekend at 228,000 miles! It finally cracked at the coolant port and leaked into my #1 plug well killing my coil. Anyway, I took some side by side comparison pics of the two intakes and the Dorman is definitely different than the OEM ford. It has slightly different runner lengths, totally different lower plenum and the top where the throttle body bolts on doesn't have the divider whatsoever... Is this better or worse than the ford piece? It has to make a difference in some areas of the operating range of the truck I would think!
Anyone else ever notice this?
Sorry if this has been discussed in the past, I'm not on here much!
Anyone else ever notice this?
Sorry if this has been discussed in the past, I'm not on here much!
#2
Senior Member
iTrader: (1)
Hi fellas, just replaced the OEM plastic manifold on my 01 5.4 this weekend at 228,000 miles! It finally cracked at the coolant port and leaked into my #1 plug well killing my coil. Anyway, I took some side by side comparison pics of the two intakes and the Dorman is definitely different than the OEM ford. It has slightly different runner lengths, totally different lower plenum and the top where the throttle body bolts on doesn't have the divider whatsoever... Is this better or worse than the ford piece? It has to make a difference in some areas of the operating range of the truck I would think!
Anyone else ever notice this?
Sorry if this has been discussed in the past, I'm not on here much!
Anyone else ever notice this?
Sorry if this has been discussed in the past, I'm not on here much!
#4
I believe if you go on amazon and look at the dorman intake manifolds for the truck, and down at the description, it says "upgraded design". never thought much of till you brought these points up. hmm
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#10
So the 02-03 motors got a different intake than the 00-01? I didn't know that. The only real "upgrade" then is the coolant cross over? I really don't feel a difference in my truck at all. Of course it runs smoother since I put new plugs in it and replaced the bad COP.