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12-05-2001, 12:22 PM | #1 |
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What stangs came with the 351's
I need some info on which stang's came with what engine's during the Mach and Boss year's. We are having a little conflicted disscusion about where the 351's lay. And I thought who better to ask? thank's
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12-05-2001, 04:19 PM | #2 |
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351 Windsors were first offerend on '69 Mustangs...standard on Machs....351 Clevelands first appeared in '70 Stangs...I'm not sure how long each of these engines kept making appearances...but I do know that's when they were first offered...hope this can help a little....
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12-06-2001, 12:06 PM | #3 |
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Thanks for the info. The real question on the board is, did the 351 ever come in the Boss. I say no, to my knowledge the Boss Mustangs came with the 302, 429, and for some reason I am questioning myself about the 427 ( I have a feeling that this is a typo in my brain). But never the less I feel the need to mention it. Strange how that works.
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12-06-2001, 12:14 PM | #4 |
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Well first thing there was no BOSS 427
Now for the bad news. There WAS a BOSS 351. It was produced in 1971 and if I remember correctly it was the fastest factory Mustang until the 2000 Cobra R came out. Here's a link with all the informantion you should need. http://www.boss351.org/main.htm
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12-06-2001, 01:57 PM | #5 |
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That is what I meant by typo
I thought that there was somthing strang about that 427 number. This is alright because I didn't think that was right anyway.
Where can I find this info writen down at? No offense to any one but I am one of those people who doesn't except defeat after the first blow. (Nevermind I just noticed the link. And with the gloom of defeat standing over my shoulder I'll check it out. Thank's a lot burner!) ha. |
12-06-2001, 04:14 PM | #6 |
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Yep, I agree with tireburner. There definitely was a Boss 351, and it was in '71. In fact, I have a very nice poster of a bright yellow Boss 351 that had California plates "RARE 351".
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12-06-2001, 07:24 PM | #7 |
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The 1968 Mach 1 428CJ was the quickest production Ford Mustang. The 1968 Shelby GT500 was available with the legendary 427FE.
The 1971 Boss 351 was a 351C with Boss 302 heads. |
12-06-2001, 08:23 PM | #8 |
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I'm sorry Unit, but your wrong the fastest mustang ever was the 1992 Mustang LX 2.3
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12-06-2001, 09:16 PM | #9 |
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I believe a certain John Force drives a white and green Mustang that runs about a 4 second quarter mile.....hmmm......
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12-06-2001, 09:18 PM | #10 |
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Oh damn....Unit said production Mustang....I lose.....
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12-06-2001, 09:23 PM | #11 |
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How dare you question the uncontestable word of Unit 5302?????
LOL. I also said "was." The '00 Cobra R would kill it. Actually the 1999,2001+ Cobra has posted stock times quicker than any of the old Musclecar Mustangs. |
12-06-2001, 09:38 PM | #12 |
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Dang I'm racking up the posts on this thread....
I did just notice ANOTHER thing that Unit said though.... I thought that the "Mach 1" package was not offered until 1969? Are you thinking the fastback GT? They made hardtop Gts also with the GT package. I know the 428CJ was offered.....rated at 335 hp....0-60 in 5.9 (would have been way better without their crappy polyglas tires)...13.56@106.6....horsepower had to be 400....These hp ratings are all break horsepower though....not net like is used on new cars.... Steve McQueen used a '68 GT390 in the movie Bullitt. 4-spd.....mmm....sweet car..... |
12-06-2001, 09:40 PM | #13 |
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Yea, but put the 428CJ on a decent set a modern tires. Then lets see what it will run.
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12-06-2001, 09:45 PM | #14 |
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Forget even modern radials...slap some modern SLICKS on there....I'd bet you'd get a 12.6-12.8 out of it.....???? And take out some stuff like spare/jack, floor mats, any other excess weight, then what?
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12-08-2001, 06:59 PM | #15 | ||
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Quote:
Hmmm, some misinformation here... The first year for the Mach1 was 69' And I love this: Quote:
It'd make better sence to say "The 1971 Boss 351 was a 351C with 351C-4V cyln heads". Or in other words "The 1971 Boss 351 is just a regular 351C-4V motor". Here's some facts for ya: 1) The 351W was only available in a mustang from the years of 69-73 2) The 351C was only available in a mustang from the years of 70-73. 3) A Boss 302 engine is basically a regular 302 block with 351C-4V cyln heads(and required hardware). 4) A Boss 351 engine is a regular 351C-4V engine. 5) In '73 the biggest engine you could get in your mustang was a 351C. Don't know much about the Boss 429's, cept it's my dream mustang. I believe that in '74, you couldn't buy a mustang with a V8 (I think the Cobra II's came out in '75) Here's a pic of my '70 Grande with 351W |
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12-08-2001, 09:29 PM | #16 |
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Sorry I did have a brain fart on the Mach 1. The 1968 Fastback 428CJ was the quickest.
The Boss 302 is most definately not a standard 302 windsor. It's a different block with 4 bolt mains at 2-3-4, and screw in freeze plugs. The 351C 4V heads are NOT the same as the Boss 302 heads. The Boss 302 heads are more aggressive than the 4V heads. The Boss 302 got bigger valves than the 4V heads in 1969 (which doesn't really matter for 1971), and they flow better. So quite frankly, I love your comment. Show a little respect and research the subject before jumping in tearing it up. The Boss heads also featured closed chamber head design, single groove valves, larger valve spring seats, milling for guide plates and rocker studs. While SOME of the 351C heads had SOME of the upgrades like the Boss heads, most did not, and it's doubtful they had them all. The Boss 351 was rated at 330hp vs the 351C-4v's 290hp. Not that the ratings really meant anything back then anyway. |
12-08-2001, 09:38 PM | #17 |
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I would also be more inclined to say the 351 C is a Cleveland block with Boss 302 heads by your logic, since the Boss 302 debuted before the 351C, but since the heads are not the same, it doesn't matter.
Also, you better check your specs sheets again. The Boss 351 also came with different rods, pistons, camshaft, distributor, and intake manifold from the standard 351C 4V. |
12-08-2001, 10:37 PM | #18 | |
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Quote:
I completely agree with Unit on everything else. As far as the bottom end is concerned, the Boss short block was completely different than the windsor 302 short block. Even the rods were different lengths. The Boss 351 was very different from the 351C 4V as well. Take care, -Chris
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12-08-2001, 11:00 PM | #19 |
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Are you saying the 1969 Boss 302 heads do not flow better? According to the information I have MOST 351C 4V's had open head chambers. Ford made so many little changes here and there between years, in years that some got 1 type, another got a different type.
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12-08-2001, 11:24 PM | #20 |
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On that engine, the 1970 heads worked better. The valves in the '69 heads were too big. That's why they reduced their sizes for 1970.
All 351C 2V heads were open chamber, but the '70 & '71 4V heads were closed chamber. They called them "quench chamber" heads, but they are closed chamber. Try and find some pictures in your reference material, and you'll see what I mean. The Boss heads and the 4V heads have identical combustion chambers. Take care, -Chris P.S. If you really want to throw a monkey wrench into the works, consider this: The 351C (casting numbers D0AE-J & DOAE-G) was installed at the factory in a few 1969 Fords.
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