which of these intake manifold casting # is correct for 85 mustang gt 4.0 4v

[Sinister]

RF-E4ZE-9425-GA
RF-E5ZE-9425-GA
RF-E3ZE-9425-FD
RF-E4ZE-9425-ZA

what different between these E3-e4-e5 ? which one is more factory correct ford intake for my 85 mustang gt 4.0 4v ? I look on ebay, and most list can fit 85 mustang gt.

[Tracer]

Someone correct me if I'm wrong but I think E3 is for 1983, E4 is for 1984 and E5 is for 1985. The 1994 started with the F letters.

[FM2NOTCH]

I'm going to go with

RF-E4ZE-9425-GA

[mcfairmont]

To the best of my knowledge, the E3 intake was used on 83s only, 84 & 85 used the E4 intake. I have a couple of each, and the only visual differance between the 2 that I have noticed in the EGR hole is a bit different at the carb flange. (actually the EGR spacer flange would be more accurate.)

[Sinister]

Im thinking delete the smog pump and EGR , what is the edelbrock directly replacement for RF-E4ZE-9425-GA .

I think my intake have a EGR spacer, after delete the EGR, I could just take that spacer out right ? and just put a plain square spacer on it ?

[Ourobos]

RF-E5ZE-9425-GA

I'll go with that one..

[ALY CAT]

E1ZZ-9424-B EXC. TC, 1980/1986 1
E5ZZ-9424-A LOWER, TC ``BEFORE 4/85'', 1985 1
E5ZZ-9424-C LOWER, TC ``FROM 4/85'', 1985/1986 1
E5ZZ-9424-B UPPER, TC, 1985/1986 1
E4ZZ-9424-A 1984/1987 1
E4ZZ-9424-E ALUMINUM, F M/T, 1984/1985 1
EOVZ-9424-B ALUMINUM, F A/T, 1985

hope this helps.

[bwguardian]

Im thinking delete the smog pump and EGR , what is the edelbrock directly replacement for RF-E4ZE-9425-GA .

I think my intake have a EGR spacer, after delete the EGR, I could just take that spacer out right ? and just put a plain square spacer on it ?

If you are headed in that direction why not get a decent intake manifold...the stockers are choked down with small runners.

[Sinister]

If you are headed in that direction why not get a decent intake manifold...the stockers are choked down with small runners.

Im thinking edelbrock , but I dont know which one that will direct replacement, over RF-E4ZE-9425-GA, with all the sensor same location.... my buddy say he can port the old intake, mind already a tiny crack, it does not leak or anything, but that something I will have to replace in future, so might as well do it now. And while im at it, I remove those smog , emission stuff, my smog pump about to go out...

[bwguardian]

Im thinking edelbrock , but I dont know which one that will direct replacement, over RF-E4ZE-9425-GA, with all the sensor same location.... my buddy say he can port the old intake, mind already a tiny crack, it does not leak or anything, but that something I will have to replace in future, so might as well do it now. And while im at it, I remove those smog , emission stuff, my smog pump about to go out...

You won't need the added sensors if you are doing away with what you are talking about. Depending on where you are headed with the rest of the engine combo will depend on which intake will work best.

[Sinister]

You won't need the added sensors if you are doing away with what you are talking about. Depending on where you are headed with the rest of the engine combo will depend on which intake will work best.

just stock replacement, engine will keep stock.

[Sinister]

just stock replacement, engine will keep stock.

nvm, I post a ad on local craiglist, have a guy call me, he got one pull off his 84 mustang gt. he want 40 dollar for it, Imma go take a look tomorrow. I buy one for back up, incase my currently one leak.

[8ballEinstein]

just stock replacement, engine will keep stock.

You want to keep things stock, but want to remove the emissions equipment. I'm not sure what you gain from that. Usually people remove the smog stuff to pick up performance using aftermarket parts. But then, maybe I'm missing something.

[bwguardian]

I kept my engine stock looking with Ford parts to the average eye and did away with all the smog equipment. The GT40p heads are so efficient they do not have thermactor plumbing and that is topped off with a Ford Racing intake manifold and FRPP stainless steel headers. The rest is stock and in its original place, so unless you really know what you are looking at it appears stock...until you fire it up and the Ford Racing E-303 cam starts talking!

[8ballEinstein]

I kept my engine stock looking with Ford parts to the average eye and did away with all the smog equipment. The GT40p heads are so efficient they do not have thermactor plumbing and that is topped off with a Ford Racing intake manifold and FRPP stainless steel headers. The rest is stock and in its original place, so unless you really know what you are looking at it appears stock...until you fire it up and the Ford Racing E-303 cam starts talking!

Yours is an example of "stock looking" with some performance enhancements. The OP seems to want everything "stock", except for the smog equipment. I found that a little curious.

My combo happens to be stock looking also, but have kept the emissions equipment in place. See my album if interested.

[Sinister]

Yours is an example of "stock looking" with some performance enhancements. The OP seems to want everything "stock", except for the smog equipment. I found that a little curious.

My combo happens to be stock looking also, but have kept the emissions equipment in place. See my album if interested.

my emission stuff is still there, just not hook up, the preview owner already remove the smog pump, but gave to me all the part when I bought the car, I dont want gain any performing, if my ford part broke, I replace with another ford part.