• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
New Buy: 1971 Boss 351
Greetings from the Republic of Texas!  I recently purchased (July 2018) a 1971 Boss 351 (Vin 1F02R154257) from the 2nd owner who's owned it for the last 41 years. He purchased it in January, 1977 from a Chrysler Dealership in McAllen, TX.  He was told the original owner was from Mexico who drove to McAllen and traded it for something on the Chrysler lot.  Since McAllen is a border town the story made sense but there was no way to prove until I obtained a MARTI report.  According to MARTI my car was only 1 of 18 to be designated for export at production with a DSO code of 99. So there are 17 other Boss 351's somewhere on the planet that were sent overseas after coming off the assembly line.  This picture was taken the day I purchased it (July 12, 2018) outside his garage.  The wheels are not correct but the car is in awesome condition with solid metal since it has lived in the desert south all of its life.

The engine is in the machine shop as I write this note. My intent is for a bottom-up rebuild but I want the car to be driveable and allow me to get gas at the corner store.  As such, I don't want 11.7:1 compression and asked they "detune" the engine.  The engine will still look like a 1971 Boss on the outside.

Oh...I'm selling the original intake manifold (D1ZX-9425-CA) and a NOS Boss distributor in the classifieds if interested.


San Antonio, TX

[Image: Mustang-Pic.jpg]

[Image: IMG-20180706-123214000.jpg]
[+] 1 user Likes TexasBoss's post
Welcome !! I looked at your items (though I can't use more for a 72) I would like to offer "things your need" for your build or buy the old original pistons if you want to turn into cash for other things.

That is a beautiful looking vehicle. The prior owner of our 1973 Mach 1 replaced his original 302 2v engine with a 351W using 69 351W 4v heads. The engine was built for street/strip, but he insisted on having only 9.7:1 compression ratio pistons because of the lack of high octane gasoline in our area (If I am lucky I find 90 octane non-ethanol out here to use). It was a smart move. The engine runs strong, despite the 9.7:1 compression. And I get no pre-ignition under load. Like yourself I initially did not like the 71-73 model years, far favoring 69-70 fastback/sportsroof Mustangs. But over the years I grew to appreciate the 71-73 models, Then we got ours, and it has been an awesome experience.
[+] 1 user Likes gil@gilhale.com's post
Welcome from Omaha!

71-73 Mustangs never die, they just go faster!
Welcome from northern California.


p.s. I would not detune the Boss

[Image: 1_11_11_13_11_50_27.png]
Welcome from Illinois!
Hello from iowa, If it was me I would not lower compression back the timing off. I run a 70 mercury cyclone with a 429 CJ at 11.3 to 1 compression and run it on pump gas no problems.
Hello and Welcome from Michigan. You are one lucky dog, nice ride.!
Why are you selling the original intake? These are very hard to come by and will detract from the value of the car.

run_horse Run Horse Run!
John 72 Q Code
Welcome from Iowa. I will just come out and say it. Are you nuts? If you want a detuned car buy a regular Mach and slap some boss stickers on it. Destroying what I assume is a very accurate and original Boss 351 is insane.

73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

- Jason

[Image: 082-hot-rod-power-tour-2017-1970-1970s.jpg]
(11-10-2018, 09:39 AM)73pony Wrote: Welcome from Iowa. I will just come out and say it. Are you nuts? If you want a detuned car buy a regular Mach and slap some boss stickers on it. Destroying what I assume is a very accurate and original Boss 351 is insane.
+1 on that. Sorry but these cars are so rare it’s hard to hear it getting changed at all.

run_horse Run Horse Run!
John 72 Q Code
Share Thread:  

Possibly Related Threads...
Thread Author Replies Views Last Post
  Donor automatic Transmission for 73 mustang 351 Cleveland Day day 3 139 04-25-2019, 06:33 AM
Last Post: NOT A T5
  Want to buy a mustang convertible ron m 4 178 04-16-2019, 10:53 AM
Last Post: c9zx
  351c Boss Rev Limiter AZ-Mach1 16 1,076 09-12-2018, 08:11 PM
Last Post: AZ-Mach1
  Hello from Iowa! Starting a 1971 Mach1 restore ash0468 24 1,043 07-26-2018, 03:13 PM
Last Post: ash0468
  My 1971 Mach 1Recently Acquired griffbl 23 2,650 07-15-2017, 10:03 AM
Last Post: griffbl
runninpony 1971 Mustang Convertible NOT A T5 14 1,749 01-12-2017, 05:31 AM
Last Post: NOT A T5
  1971 Q code MG42 44 8,128 08-19-2016, 04:57 PM
Last Post: MG42
  72 GT-351 Mustang from Mexico buster2win 24 3,217 05-17-2016, 11:19 AM
Last Post: timachone

Users browsing this thread: 1 Guest(s)