Can someone plz tell me what heads i have?

92lxStang · 07-01-2001, 02:26 PM

Ok i bought my 92 lx about 2 months ago and recently did a tune up and i bought plugs for a 5.0 and i tried to put them in and they were wrong so i had to get the same autolites that came out of the car.

now my questions is if i give the Autolite plug number off my plug can u guys tell me what's up?

the number is Autolite 2545

07-02-2001, 02:37 AM

Well, there's two options:
1. computer or computer operator who looked up the plugs screwed up or:
2. Aftermarket cylinder heads, which if you car is heavily modified there's a chance they may be different.
It's most likely 1 because even in most auto shops and parts departments theres always mistakes being made and information misread, etc. I believe nearly all 5.0L's take plugs ASF-42C (ford number), except for maybe the new explorers with the GT-40P heads, but i don't know the autolite number.

------------------
'84 Mustang 5.0 LX
My car

sweet88coupe · 07-04-2001, 03:12 AM

I believe that the plugs you recieved from the parts store the first time were to big for the hole...right? If the plug was to big I have had the same problem, I raised hell at the partshouse for selling me the wrong plugs, but them we cross referenced the part number on the old plugs. I had heads off of an '86 capri, mid '80's crown vic, or a 4 cylinder stang. I recently took my heads off to replace head gaskets and found that the head was the closed chamber design.....thats a plus!!!

StUmP1000 · 07-04-2001, 10:30 PM

hey man, im not sure what kind of heads they are but 94 and 95 gt's take 2545's. Regular gt40's take 765's. And stock 87-93 heads take 25's. THose are all autolite part numbers. The only difference between a 25 and a 2545 is the shank on the end... the 2545 has the threads that have more of a shank so they will go down in the head further... the threads on the 25's wont reach the spark plug hole if you try to putem on a 94 or 95. hope this helps man

foxandfoe · 07-05-2001, 01:06 AM

what kind of heads are on 94-95 gts are they any better than e7te's

07-01-2001, 02:26 PM	#1
92lxStang Registered Member Join Date: Apr 2001 Posts: 12	Can someone plz tell me what heads i have? Ok i bought my 92 lx about 2 months ago and recently did a tune up and i bought plugs for a 5.0 and i tried to put them in and they were wrong so i had to get the same autolites that came out of the car. now my questions is if i give the Autolite plug number off my plug can u guys tell me what's up? the number is Autolite 2545

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07-02-2001, 02:37 AM	#2
84stangLX Guest Posts: n/a	Well, there's two options: 1. computer or computer operator who looked up the plugs screwed up or: 2. Aftermarket cylinder heads, which if you car is heavily modified there's a chance they may be different. It's most likely 1 because even in most auto shops and parts departments theres always mistakes being made and information misread, etc. I believe nearly all 5.0L's take plugs ASF-42C (ford number), except for maybe the new explorers with the GT-40P heads, but i don't know the autolite number. ------------------ '84 Mustang 5.0 LX My car

07-04-2001, 03:12 AM	#3
sweet88coupe Registered Member Join Date: Jul 2001 Location: westville, fl 32464 Posts: 10	I believe that the plugs you recieved from the parts store the first time were to big for the hole...right? If the plug was to big I have had the same problem, I raised hell at the partshouse for selling me the wrong plugs, but them we cross referenced the part number on the old plugs. I had heads off of an '86 capri, mid '80's crown vic, or a 4 cylinder stang. I recently took my heads off to replace head gaskets and found that the head was the closed chamber design.....thats a plus!!!

07-04-2001, 10:30 PM	#4
StUmP1000 Registered Member Join Date: Jul 2001 Location: morristown, tn, usa Posts: 4	hey man, im not sure what kind of heads they are but 94 and 95 gt's take 2545's. Regular gt40's take 765's. And stock 87-93 heads take 25's. THose are all autolite part numbers. The only difference between a 25 and a 2545 is the shank on the end... the 2545 has the threads that have more of a shank so they will go down in the head further... the threads on the 25's wont reach the spark plug hole if you try to putem on a 94 or 95. hope this helps man

07-05-2001, 01:06 AM	#5
foxandfoe Registered Member Join Date: Jun 2001 Location: new castle pa Posts: 32	what kind of heads are on 94-95 gts are they any better than e7te's