Cleveland motors won't touch the other Fords (302) with out compression and gears. Big ports/no torque
1972 Ford Mustang Mach I {R-Code} ~ "Feared by Mopar or Falafelled'
- Thread starter 69 Cuda 440
- Start date
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When I was about 14 (1982), I rode in one of the iconic yellow boss 351 cars.
It had a bit of work done to it, and it really impressed me.
One of, if not THE fastest/quickest cars I'd ever been in at the time.
Years later (1991), I bought a 71 torino GT 351-4v ram air (shaker) car- auto with a 3.5 9 inch, in that lovely "legend lime" green.
I was the second owner, and it had about 70K on the clock, with most of the original hose clamps and such under the hood, and the original polyglass spare tire.
For all the hype and legendI'd heard regarding the 351c, I really thought that car would be more of a screamer.
There is NO WAY that car could outrun my 70 383 Super Bee. NO WAY.
It handled MUCH worse as well.
Interestingly, I've never seen another 351 shaker car.
All the shaker hood cars seem to be 429 cars.
It had a bit of work done to it, and it really impressed me.
One of, if not THE fastest/quickest cars I'd ever been in at the time.
Years later (1991), I bought a 71 torino GT 351-4v ram air (shaker) car- auto with a 3.5 9 inch, in that lovely "legend lime" green.
I was the second owner, and it had about 70K on the clock, with most of the original hose clamps and such under the hood, and the original polyglass spare tire.
For all the hype and legendI'd heard regarding the 351c, I really thought that car would be more of a screamer.
There is NO WAY that car could outrun my 70 383 Super Bee. NO WAY.
It handled MUCH worse as well.
Interestingly, I've never seen another 351 shaker car.
All the shaker hood cars seem to be 429 cars.
1972 Plymouth Road Runner/GTX
* 440/290 HP 'U-Code' ~ 'Air Grabber' Fresh-Air Package {Code N-96}
* G60 x 15" Goodyear Tires
* Shipping Weight..... #3675 lbs.
* Curb Weight............ #3780 lbs.
Best 'recorded' Performance in Stock Trim by the 1972 Magazines
4-Speed with Dana Rear
3.54 Gears...... 14.33 @ 97.20 MPH
4.10 Gears...... 13.85 @ 102.50 MPH ~ {Super Stock and Drag Illustrated}
Note: 4.10 Gears {Special Order; Code {A-34} 'Super Track-Pak' Option}
Automatic with 8 3/4" Rear
3.55 Gears..... 14.48 @ 96.80 MPH
Did it the turn the 1972 Mustang '351 HO' into Falafel ?
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When the 1972 Road Runner/GTX was introduced to the public {September 5, 1971},
the 440/290 HP 'U-Code' with the Air-Grabber {Fresh-Air Package} was re-factored to
330 HP by NHRA.
The car was factored with a Weight/Horsepower of 11.14 Wt/HP which put the car
in I/Stock {11.00 to 11.49} for the late-1971 Racing Season.
In 1972, the NHRA went back to 'near' Pure Stock for Stock Eliminator and changed the
Class weight breaks.
In 1972, the Road Runner/GTX 440/290 HP {NHRA; 330 HP} was classed in
C/Stock {11.00 to 11.99 Wt/HP}, or in Super/Stock 'SS/K' {11.00 to 11.49 Wt/HP}.
They did very well in C/S and C/SA.
Eventually the 1972 '440/290 HP' was re-factored to {NHRA; 345 HP}.
Now the 1972 Road Runner/GTX {440/290 HP} is factored in at {10.65 Wt/HP}, and is
now classed in F/S or F/SA, or in Super Stock {SS/J or SS/JA}.
countrytravler
Well-Known Member
wrong picture how do you delete?
95teetee
Well-Known Member
I pulled a 302 out of my '68 Mustang and squeezed in a stock 351c (2V) out of a '72 Cougar. With that motor it would obliterate the L60's. Not great for racing, but if you wanted to be able to mash the gas and smoke the tires through all 3 gears (with a 2.79 rear) it was perfect lol.
1972 Mustang Mach 1 '351 HO' {R-Code}
351/275 HP
* Shipping Weight..... #3330 lbs.
* Curb Weight........... #3481 lbs.
Recorded Performance in 'Stock Trim' by the 1972 Magazines
15.10 @ 95.6 MPH ~ {Car and Driver}
14.91 @ 95.5 MPH
14.73 @ 95.7 MPH
14.60 @ 96.0 MPH ~ {Car and Driver}
14.48 @ 96.3 MPH
The 1972 351 HO {Cleveland} was really a 'de-tuned' 1971 Boss 351.
* 275 Horsepower @ 6000 RPM's
* 286 Foot/Pounds of Torque @ 3800 RPM's
Specifications
* Competition Suspension
* Staggered Shocks
* F60 x 15" Tires
* 4-Speed Only
* 9" Rear
* 3.91 Gears
* Traction-Lock Differential
* Forged Aluminum Pistons {Flat Top w/eyebrow reliefs}
* 9.20-1 Compression Ratio
* Mechanical Lift Camshaft ~ .490"/.490" Lift ~ 275*/275* Duration ~ 35* Overlap
* Open Chamber Cylinder Heads #D2ZE-A ~ {75.4 CC}
* Valves ~ {2.198" Intake ~ 1.717" Exhaust}
* Dual Exhaust
* H-Pipe
* Spread-Bore Intake Manifold {Aluminum}
* Motorcaft Carburetor #4300 {750 CFM} ~ {1.563" Primary x 1.960" Secondary}
* Dual-Point Distributor
Note; The 1972 '351 HO" had no distinct markings on the hood.
Note; No 'Ram-Air' either. The hood scoops were formed in the hood, but they were not functional.
Note; A fresh-air vent duct was directed from the air-cleaner, that ran under the battery-tray located
near the front right side engine compartment.
In 1972, the 351/275 HP 'HO' {R-Code} was re-rated {NHRA; 325 HP}
351/275 HP
* Shipping Weight..... #3330 lbs.
* Curb Weight........... #3481 lbs.
Recorded Performance in 'Stock Trim' by the 1972 Magazines
15.10 @ 95.6 MPH ~ {Car and Driver}
14.91 @ 95.5 MPH
14.73 @ 95.7 MPH
14.60 @ 96.0 MPH ~ {Car and Driver}
14.48 @ 96.3 MPH
The 1972 351 HO {Cleveland} was really a 'de-tuned' 1971 Boss 351.
* 275 Horsepower @ 6000 RPM's
* 286 Foot/Pounds of Torque @ 3800 RPM's
Specifications
* Competition Suspension
* Staggered Shocks
* F60 x 15" Tires
* 4-Speed Only
* 9" Rear
* 3.91 Gears
* Traction-Lock Differential
* Forged Aluminum Pistons {Flat Top w/eyebrow reliefs}
* 9.20-1 Compression Ratio
* Mechanical Lift Camshaft ~ .490"/.490" Lift ~ 275*/275* Duration ~ 35* Overlap
* Open Chamber Cylinder Heads #D2ZE-A ~ {75.4 CC}
* Valves ~ {2.198" Intake ~ 1.717" Exhaust}
* Dual Exhaust
* H-Pipe
* Spread-Bore Intake Manifold {Aluminum}
* Motorcaft Carburetor #4300 {750 CFM} ~ {1.563" Primary x 1.960" Secondary}
* Dual-Point Distributor
Note; The 1972 '351 HO" had no distinct markings on the hood.
Note; No 'Ram-Air' either. The hood scoops were formed in the hood, but they were not functional.
Note; A fresh-air vent duct was directed from the air-cleaner, that ran under the battery-tray located
near the front right side engine compartment.
In 1972, the 351/275 HP 'HO' {R-Code} was re-rated {NHRA; 325 HP}
Back in the day my girl friend's brother had a 71 Mach1. Whenever we went anywhere with him we had to sit in the back. You couldn't see out in any direction except through the front. The high back buckets were limiting our view of the outside world. So we ended up making out everytime to pass the time. I never feared the Mach1 after that.
1972 Mustang Mach 1 '351 HO' {R-Code}
351/275 HP ~ {1972 NHRA; 325 HP}
* Shipping Weight ................ #3330 lbs.
* Weight/Horsepower ........... 10.24 Wt/HP
* 1972 NHRA Stock Class........ B/S = {10.00 to 10.99 Wt/HP}
* 1972 NHRA Super/Stock..... SS/I = {10.00 to 10.49 Wt/HP}
* October 1971 > Ford announced production.
* January 20, 1972 > Release Date.
351/275 HP ~ {1972 NHRA; 325 HP}
* Shipping Weight ................ #3330 lbs.
* Weight/Horsepower ........... 10.24 Wt/HP
* 1972 NHRA Stock Class........ B/S = {10.00 to 10.99 Wt/HP}
* 1972 NHRA Super/Stock..... SS/I = {10.00 to 10.49 Wt/HP}
* October 1971 > Ford announced production.
* January 20, 1972 > Release Date.
Jarlaxle
Well-Known Member
The 1972 "351HO" was a Boss 351 with a point and a half less compression.
Jarlaxle
Well-Known Member
How heavy if ordered correctly, though? That is: notchback body, manual steering & brakes, 351HO, 4-speed, 4.10 gears, and nothing else?
Also,
* Different 'Mechanical' Camshaft.
* And the 1972 '351 HO' did not have Ram Air like the 1971 'Boss 351'.
Inertia
Well-Known Member
There was a "ford" builder in our town called "Mean Machines", we ( dodge boys) got wind of one of the first 351C's in town being built for a Mustang..
When it came out, after break-in,, part of our cruise was up a 3 lane city street that had lites every block..
In my Swinger, ended up in the Rt lane, him next left to me,, and the owner of Mean Machines far left in a 428 CobraJet, a nice green ranchero behind him, a Z-28 behind the Mustang,, and I don't remember what was behind me..
The lite went green, I hole shot em both, and when I looked in my mirror,, every-one was stopped mid block, with steam coming outta the Mustang.. I went around the block,, Long story short,, the mustang blew the flywheel going for 2nd, breaking the motor, knocked both fr fenders behind the wheels away from the body,, a piece went up by the owners knee and dented roof from the inside,, The Cobra-Jet had shrapnel, as did the Ranchero behind him.. The Z-28 cut a tire running over a pie-shaped piece of flywheel sticking outta the pavement,, and a local busines lost a plate glass window,,.
Only guy without a mark was me,, cuz I was ahead of em.. lol
a lot to be said for scattershields..
true story,,
When it came out, after break-in,, part of our cruise was up a 3 lane city street that had lites every block..
In my Swinger, ended up in the Rt lane, him next left to me,, and the owner of Mean Machines far left in a 428 CobraJet, a nice green ranchero behind him, a Z-28 behind the Mustang,, and I don't remember what was behind me..
The lite went green, I hole shot em both, and when I looked in my mirror,, every-one was stopped mid block, with steam coming outta the Mustang.. I went around the block,, Long story short,, the mustang blew the flywheel going for 2nd, breaking the motor, knocked both fr fenders behind the wheels away from the body,, a piece went up by the owners knee and dented roof from the inside,, The Cobra-Jet had shrapnel, as did the Ranchero behind him.. The Z-28 cut a tire running over a pie-shaped piece of flywheel sticking outta the pavement,, and a local busines lost a plate glass window,,.
Only guy without a mark was me,, cuz I was ahead of em.. lol
a lot to be said for scattershields..
true story,,
Yikes.
Jarlaxle,
There are several different weights 'listed' for the 1972 Mach 1 '351 HO'
Curb Weight
* 3481 lbs.
* 3558 lbs.
* 3604 lbs.
* 3647 lbs.
Shipping Weight
* 3330 lbs.
* 3360 lbs.
* 3437 lbs.
* 3481 lbs.
Ford does 'list' a difference of {151 lbs.} between Shipping Weight and Curb Weight.
Base Weight
* Hardtop Coupe .... {Base Weight}
* Sportsroof .......... {+100 lbs. over Base}
* Convertible ......... {+220 lbs. over Base}
There are several different weights 'listed' for the 1972 Mach 1 '351 HO'
Curb Weight
* 3481 lbs.
* 3558 lbs.
* 3604 lbs.
* 3647 lbs.
Shipping Weight
* 3330 lbs.
* 3360 lbs.
* 3437 lbs.
* 3481 lbs.
Ford does 'list' a difference of {151 lbs.} between Shipping Weight and Curb Weight.
Base Weight
* Hardtop Coupe .... {Base Weight}
* Sportsroof .......... {+100 lbs. over Base}
* Convertible ......... {+220 lbs. over Base}
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