Mustang5l5's Progress Thread - Heads install

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Mustang5L5

This is a big reason why I pulled it out
Mod Dude
Feb 18, 2001
31,518
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Massachusetts
Probably a northern car thing, but other than the Mustang, I've never owned a car with one. I've seen it factory installed on diesel trucks.


It's actually listed on the Marti report, so it is a factory option.
 

Mustang5L5

This is a big reason why I pulled it out
Mod Dude
Feb 18, 2001
31,518
7,788
224
Massachusetts
Little experiment. Picked up s can of this. Supposed to be pretty good at removing carbon. Pretty caustic stuff though, and label is full of cancer and other health warnings.

36740B2F-43A7-4161-A54B-2B86B21161AC.jpeg


I’ve read about leaving it in for too long and destroying the piston/cylinder, so I decided to try it on my heads since they are likely boat anchors now considering the valve seals are mostly petrified and they need a rebuild

Let’s see what happens on that one combustion chamber

B728BBA3-6A48-4E41-B618-1AC78C9AA03E.jpeg
 

Davedacarpainter

I think I've messed my pants
SN Certified Technician
Nov 28, 2015
11,440
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Discordia
Little experiment. Picked up s can of this. Supposed to be pretty good at removing carbon. Pretty caustic stuff though, and label is full of cancer and other health warnings.

36740B2F-43A7-4161-A54B-2B86B21161AC.jpeg


I’ve read about leaving it in for too long and destroying the piston/cylinder, so I decided to try it on my heads since they are likely boat anchors now considering the valve seals are mostly petrified and they need a rebuild

Let’s see what happens on that one combustion chamber

B728BBA3-6A48-4E41-B618-1AC78C9AA03E.jpeg
I thought you were showing us a new Mopar beer at first Mike!:drool:
 

Mustang5L5

This is a big reason why I pulled it out
Mod Dude
Feb 18, 2001
31,518
7,788
224
Massachusetts
Pulled the pump to change out the brittle gaskets. Pressure was fine.

Clean up and reuse? Rebuild? Or get new stuff?

A5B3E1E2-36AD-4CE5-B7B1-D8736FC8576B.jpeg
 

HotFox

10 Year Member
Jan 5, 2009
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SE Michigan
So I am kind of following along, your not going to put bearing or rings in this? Your just going to put your new top end on this short block?
 

Rdub6

Mustang Master
Dec 29, 2017
852
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Long Island, NY
+1 on bore and stroke. I’d have a hard time having it that far apart..... and putting all new stuff on top of the old. But it is much easier to spend other people’s money.
 

Mustang5L5

This is a big reason why I pulled it out
Mod Dude
Feb 18, 2001
31,518
7,788
224
Massachusetts
+1 on bore and stroke. I’d have a hard time having it that far apart..... and putting all new stuff on top of the old. But it is much easier to spend other people’s money.

Problem is if I redo the lower end, i'd just rather buy a short block. Then there goes $4500 I didn't want to spend because i'd have to buy one of the "good" ones rather than go budget.

I have no concerns with this bottom end. It looks pristine and I really don't have any reason to dig into it, or replace it. Oil pressure was always excellent, no noises, idled silently, it was a good running engine. Only 106K miles on it. Only negative was EVERY seal on the thing leaked, but that's prob due to the 10 years or so it sat. If I had a legit reason to break it down further, I would...but I just don't have one yet.

If this was a race car or something that I was going to abuse at high RPM, i'd be more inclined to spend the money...but realistically it's just something to cruise around with. Not shooting for high HP. 300-325 crank is fine for me. That fancy short block will be just something to brag about at a car show for me.

But then again you could say the same about the high dollar MM suspension and brakes I threw at it.
 
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