Heads question and overheating Question!!

94Stang5.0L · October 19th, 2011, 11:27 PM

Ok so i purchased my car back in April, now i find out that the heads are from an 87 5.0. are they the wrong ones or are they interchangeable? Also when i go open throttle my temp gauge rises pretty quickly i let off the throttle, temp, remains the same slowly goes down, but i stay at cruising speeds it fluctuates as well, i just replace my ect, radiator cap, thermostat. any ideas what could be wrong? i am leaking coolant slowly when cars off from timing cover gasket...no white smoke from tailpipes....could it be water pump, or blown head gasket?

Durr4456 · October 19th, 2011, 11:36 PM

I'm not a genius, but a thought popped into my head.

Are the 94 motors the exact same
As the 93? I mean internal wise, I know the foxes were forged right?

What I know for a fact is that 1987 was the first year of fuel injection for mustangs. Maybe they were meant to run differently? Just a thought.

ryanw · October 19th, 2011, 11:49 PM

1986 is the first year of fuel injection. Not 1987

Durr4456 · October 19th, 2011, 11:51 PM

Originally Posted by ryanw

1986 is the first year of fuel injection. Not 1987

Damn!!! I realized right after I posted that it could be 86. I knew it was one or the other. My apologies.

ryanw · October 19th, 2011, 11:51 PM

Also in 1993 the changed the internals from forged to cast pistons.

Durr4456 · October 19th, 2011, 11:54 PM

Okay, I didn't know
That. I'm not the most familiar with the 5.0's. I just figured any help is netter than none. I'm more of a 289,281 cu in kinda guy.

94Stang5.0L · October 19th, 2011, 11:59 PM

Originally Posted by Durr4456

I'm not a genius, but a thought popped into my head.

Are the 94 motors the exact same
As the 93? I mean internal wise, I know the foxes were forged right?

What I know for a fact is that 1987 was the first year of fuel injection for mustangs. Maybe they were meant to run differently? Just a thought.

Im very new to Mustangs so ive got no clue, thats why im asking....also from my previous threads i have stated that i have forged internals, its bored to a 308 with a mild cam. I shouldve been more specific on what i had when i posted my bad lol. also have a trickflow intake plenum, etc, those are the main modds. if u need more info id be glad to state more.

ryanw · October 20th, 2011, 12:01 AM

It's cool bro. I didn't mean to come a cross as a know it all dick. Lol. I just wanted to correct any miss info. I'm still learning to. Rock on brother

Durr4456 · October 20th, 2011, 12:03 AM

Hey no worries, I've only ridden in one fox body and that one ride made me want to buy one. Couldn't convince my bank (parents) to help me for a 24 year old car. But I can't complain, I like
My s197

Btw little fun fact my names Ryan as well

ryanw · October 20th, 2011, 12:09 AM

Originally Posted by 94Stang5.0L

Im very new to Mustangs so ive got no clue, thats why im asking....also from my previous threads i have stated that i have forged internals, its bored to a 308 with a mild cam. I shouldve been more specific on what i had when i posted my bad lol. also have a trickflow intake plenum, etc, those are the main modds. if u need more info id be glad to state more.

It's hard to say why your over heating. Did you make sure you didn't put the t- stat in up side down or put the wrong temp in. You could have a shitty gauge or you water pump is on it's way out. Did you bleed the air from your cooling system? Also do you still have that plastic damn under your front bumper ? Cuz that forces air up into your radiator. Or maybe your radiator is blocked? Who knows

ryanw · October 20th, 2011, 12:13 AM

Originally Posted by Durr4456

Hey no worries, I've only ridden in one fox body and that one ride made me want to buy one. Couldn't convince my bank (parents) to help me for a 24 year old car. But I can't complain, I like
My s197

Btw little fun fact my names Ryan as well

That's a good name. Now quit flirting with me' I'm married...... Lol

94Stang5.0L · October 20th, 2011, 12:47 AM

Originally Posted by ryanw

It's hard to say why your over heating. Did you make sure you didn't put the t- stat in up side down or put the wrong temp in. You could have a shitty gauge or you water pump is on it's way out. Did you bleed the air from your cooling system? Also do you still have that plastic damn under your front bumper ? Cuz that forces air up into your radiator. Or maybe your radiator is blocked? Who knows

no i made sure it was in the right way, its possible about the water pump, its still relatively new though, but it gets really hot really quick maybe thats it same with the blocked radiator. yes i bled the cooling system as well. flushed out everything and replaced with new coolant. no i dont have that plastic piece.

94Stang5.0L · October 20th, 2011, 12:49 AM

Originally Posted by ryanw

that's a good name. Now quit flirting with me' i'm married...... Lol

rofl!!!!!

ryanw · October 20th, 2011, 12:59 AM

Originally Posted by 94Stang5.0L

no i made sure it was in the right way, its possible about the water pump, its still relatively new though, but it gets really hot really quick maybe thats it same with the blocked radiator. yes i bled the cooling system as well. flushed out everything and replaced with new coolant. no i dont have that plastic piece.

That plastic piece maybe a good part of your issue. I'd get one on ther asap. Just my 2 cents

94Stang5.0L · October 20th, 2011, 02:57 AM

Originally Posted by ryanw

That plastic piece maybe a good part of your issue. I'd get one on ther asap. Just my 2 cents

i will double check just in case. if not i go and swoop one up for sure. appreciate the info bro

ryanw · October 20th, 2011, 08:53 PM

Your welcome. I doubt that's your only issue. But I'd still get that plastic piece any ways. I bet you could pick one up at the junk yard for less then 10 bucks

94Stang5.0L · October 20th, 2011, 10:08 PM

Originally Posted by ryanw

Your welcome. I doubt that's your only issue. But I'd still get that plastic piece any ways. I bet you could pick one up at the junk yard for less then 10 bucks

Yeah thats what i was thinking, maybe the water pump or a head gasket but im not throwing any white smoke. i did find a leak but it looks to be by the timing cover gasket...

October 19th, 2011, 11:27 PM	#1
94Stang5.0L Newbie 1994 Mustang GT Join Date: Sep 2011 Location: Apple Valley, Ca Posts: 30 iTrader: 0 reviews	Heads question and overheating Question!! Ok so i purchased my car back in April, now i find out that the heads are from an 87 5.0. are they the wrong ones or are they interchangeable? Also when i go open throttle my temp gauge rises pretty quickly i let off the throttle, temp, remains the same slowly goes down, but i stay at cruising speeds it fluctuates as well, i just replace my ect, radiator cap, thermostat. any ideas what could be wrong? i am leaking coolant slowly when cars off from timing cover gasket...no white smoke from tailpipes....could it be water pump, or blown head gasket?

October 19th, 2011, 11:36 PM	#2
Durr4456 Zip wants me 2005 Mustang GT, 1967 GT Join Date: Mar 2011 Location: New Orleans Posts: 5,250 iTrader: 0 reviews	I'm not a genius, but a thought popped into my head. Are the 94 motors the exact same As the 93? I mean internal wise, I know the foxes were forged right? What I know for a fact is that 1987 was the first year of fuel injection for mustangs. Maybe they were meant to run differently? Just a thought. __________________ The day I finish paying for my mustang will be a great day. Although I'm more likely to die before it happens. Don't be stupid like me! Zip loves my penis.

October 19th, 2011, 11:49 PM	#3
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	1986 is the first year of fuel injection. Not 1987 __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

October 19th, 2011, 11:51 PM	#5
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	Also in 1993 the changed the internals from forged to cast pistons. __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

October 19th, 2011, 11:54 PM	#6
Durr4456 Zip wants me 2005 Mustang GT, 1967 GT Join Date: Mar 2011 Location: New Orleans Posts: 5,250 iTrader: 0 reviews	Okay, I didn't know That. I'm not the most familiar with the 5.0's. I just figured any help is netter than none. I'm more of a 289,281 cu in kinda guy. __________________ The day I finish paying for my mustang will be a great day. Although I'm more likely to die before it happens. Don't be stupid like me! Zip loves my penis.

October 20th, 2011, 12:01 AM	#8
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	It's cool bro. I didn't mean to come a cross as a know it all dick. Lol. I just wanted to correct any miss info. I'm still learning to. Rock on brother __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

October 20th, 2011, 12:03 AM	#9
Durr4456 Zip wants me 2005 Mustang GT, 1967 GT Join Date: Mar 2011 Location: New Orleans Posts: 5,250 iTrader: 0 reviews	Hey no worries, I've only ridden in one fox body and that one ride made me want to buy one. Couldn't convince my bank (parents) to help me for a 24 year old car. But I can't complain, I like My s197 Btw little fun fact my names Ryan as well __________________ The day I finish paying for my mustang will be a great day. Although I'm more likely to die before it happens. Don't be stupid like me! Zip loves my penis.

October 20th, 2011, 08:53 PM	#16
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	Your welcome. I doubt that's your only issue. But I'd still get that plastic piece any ways. I bet you could pick one up at the junk yard for less then 10 bucks __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

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