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What does HO stand for on 72 R codes?
#1
Hi All,
Was interested to reading about the 351 HO Mustangs and that there was a performance option in 1972 but Ford didn't shout about it.

Just wondering if anyone knows what the HO stands for?
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#2
High Output, if I'm not mistaken.

Eric

[Image: mach1sig2.gif]
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#3
Agree this one was way under the radar. The HO "High Output" R code option is one even some of my knowledgeable Mustang friends had not heard of. Insurance company's had been screaming about losses on performance cars, emissions controls and low compression engines made performance just a word in the dictionary, and Ford stopped all factory support on racing and performance parts development. Catalytic converters and un-leaded fuel was on the horizon. I'm surprised this engine was offered at all! Most could only be identified by the "R" code vin or the air cleaner decal. No bold decals proclaiming I'm the Boss or If you know what's good for you, you'll keep your distance!!
Was a stark difference from the all out "Total Performance" days of the Sixty's! Big Grin

Steve

No Officer...I really don't know how fast I was going, my speedometer stopped at 140!
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#4
Thanks for the info. It's good to know that Ford still produced performance models after 71 under the radar and I understand they were available to other models including Coupes and Convertibles too, though the sold in small numbers.

You don't hear about journalists going on about the HO either. As far as Mustang folk law goes performance Mustangs were over by 1971.
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#5
Well, they kinda were. The HO may be based on the Boss 351 but the small changes make quite a difference, mostly the reduced compression.

[Image: 1z21rv4.png]

Mike

"If I were you...... I´d rather be me."  Tongue

Check out my video:
http://www.7173mustangs.com/thread-my-mustang-in-action

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#6
HO R codes rule!thumb can't wait until mine ready to cruise. Hopefully in a year.
These are truly the last hurrah for ford performance of that era.


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movie stars with addictions go to the Betty Ford clinic,
I take my addiction to the Henry Ford clinic.Haha
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#7
6972boss;289150 Wrote:HO R codes rule!thumb can't wait until mine ready to cruise. Hopefully in a year.
These are truly the last hurrah for ford performance of that era.

At first these numbers from your Marti threw me a little. I knew there were NOT more than 40,000 Sportsroofs built in 1972. So the numbers Marti represents in the beginning of your breakdown are for all 1972 fastback body styles. (Sportsroof 02 and Mach 1 05) That is kinda confusing. But then he does break out the "Standard Sportroof" R codes. I know there were 15,622 1972 Sportsroof (02) Mustangs produced for 1972. 30 of THOSE were R code cars. So obviously 336 were Mach 1's...

Not sure why they chose to break them out like that. Most of my data comes from going through his actual reports and quoting his numbers.

They also try and keep the coupes (Hardtops o1 and Grandé 04) bunched together too. But I had patience and by using his different reports, I have learned the breakouts on those.

Not trying to hijack the thread but -----Wow.

Ray

1971 Boss 351  
1972 Q code 4 speed convertible 
1971 Mustang Sportsroof  351-2V FMX 
1973 Mach 1 (parts car)
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#8
Gee glad you didn't ask this question in Australia about the Falcon GT HO's as you would've created an online war. As Ford Australia never gave a definition to the HO monicker, people have come up with some crazy ones. The most believed three are Handling Option as we were already having the wowser brigade going on about high performance cars and apparently Ford wanting to the HO away from anything speed related. The next is Homolagation Option as the main purpose these cars being built was to win the annual Bathurst 500 mile race for standard production vehicles. Then of course is the High Output, the same as the US. The Handling Option and High Output are the two mostly agreed upon and Homolagation Option as a serious possibility, but without Ford Australia officially naming the option of course it will always be open to interpretation.
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#9
When I was driving mine with enthusiasm, passengers were convinced HO meant Hold On. Chuck
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#10
Boss1Ray;289215 Wrote:
6972boss;289150 Wrote:HO R codes rule!thumb can't wait until mine ready to cruise. Hopefully in a year.
These are truly the last hurrah for ford performance of that era.

At first these numbers from your Marti threw me a little. I knew there were NOT more than 40,000 Sportsroofs built in 1972. So the numbers Marti represents in the beginning of your breakdown are for all 1972 fastback body styles. (Sportsroof 02 and Mach 1 05) That is kinda confusing. But then he does break out the "Standard Sportroof" R codes. I know there were 15,622 1972 Sportsroof (02) Mustangs produced for 1972. 30 of THOSE were R code cars. So obviously 336 were Mach 1's...

Not sure why they chose to break them out like that. Most of my data comes from going through his actual reports and quoting his numbers.

They also try and keep the coupes (Hardtops o1 and Grandé 04) bunched together too. But I had patience and by using his different reports, I have learned the breakouts on those.

Not trying to hijack the thread but -----Wow.

Ray
In his book Mustang by the numbers, Marti says that Ford did not break out the Mach 1 and sportsroof number separate so they are together.


When a man is in the woods and talks and no women are there is he still wrong??
Tongue
David
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