1970 Mercury Mid-Size Car Resources

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• Cyclone CJ
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• Montego

1970 Mercury Mid-Size Car Facts – Body Paint Color Mix Codes

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1970 Montego – Cyclone

1970 Mercury Mid-Size Car Facts and Specifications

General Year Information – 1970 Mercury Mid-Size Car

The Mercury mid-size cars grew in wheelbase and overall length, with the 3- and 4-doors at 117 inches and the wagons at 114 inches. The bodies were completely redesigned with much more smooth lines that gave the appearance of being lower, and they were – by about one inch. The Convertible was gone. The protruding hood Mercury had been using for the past few years was extended this year.  In the Cyclone line, the “CJ” as part of the model name was dropped from the Cyclone lineup and applied to various engine names in the series. The line now featured the Cyclone, Cyclone Spoiler and Cyclone GT. The Cyclone and Cyclone Spoiler models were fitted with 429 CID V-8 engines. The Cyclone GT received the 250 HP 351 CID 2-barrel as standard.

Cyclone Engines
The standard engine for the base Cyclone was the 429 CID four-barrel “Thunderjet” with dual exhaust, rated at 360 HP. Three optional engines were available. The 429 Cobra Jet was a 429 CID four-barrel with dual exhaust but without the Ram Air induction, rated at 370 HP. There was a Ram air version rated the same. The last was the 429 CID “Super Cobra Jet”, which was part of the Drag Pack option. It was also 429 CID with a 780 CFM Holley four-barrel carburetor, dual exhaust, Ram Air induction, and a more aggressive camshaft rated at 375 HP.

Cyclone Models
Cyclone – The base Cyclone had the plainest exterior treatment and also featured a bench seat and what would have been more like a Comet interior were a Comet available. The 360 HP 429, 4-speed transmission, handling package. and G70 x 14 tires were standard. All other performance and interior upgrades were optional, but available.

Cyclone Spoiler – The Cyclone Spoiler was an upgrade and featured front and rear spoilers, black or white racing stripes, an integrated functional hood scoop for ram air induction, 140 mph speedometer with four engine monitoring gauges that included an 8,000 RPM tachometer with adjustable red line, vinyl bucket seats, dual racing mirrors and a competition suspension package. The 429 Cobra Jet with Ram Air was the standard engine for the Cyclone Spoiler, with the 429 Super Cobra Jet with Drag Pak and Super Drag Pak optional. The Super Cobra Jet upgraded the block to four main bolts and provided a mechanical flat-tappet camshaft, and the carburetor was changed from a Rochester Quadra-Jet to a 780 CFM Holley. Standard with the SCJ was the Drag Pack, this package added a front-mounted engine oil cooler and a 3.91 ratio gear, while the Super Drag Pack offered a 4.30 ratio gear and a Detroit Locker differential. Colors for the Spoiler were limited to Competition Yellow, Competition Blue, pastel blue, Competition Gold, Competition Green and Competition Orange. NOTE: Ford had intended to continue the Spoiler II option for 1970 with an even more aggressive nose profile. One prototype was built.

Cyclone GT – For those that placed more emphasis in style than speed, there was the Cyclone GT. The basic package offered comfort weave bucket seats, full-length console, twin racing mirrors, integrated hood scoop that could be made functional for optional ram air induction, hide-away headlights, three pod tail lights and unique lower-body line trim. The small block 351 Cleveland with 2-barrel carburetor and a three-speed manual transmission was standard. The engine upgrades included the 4-barrel Cleveland small block followed all the 429 CID big blocks up to the Super Cobra Jet and the Drag Pak plus a four-speed transmission and a selection of automatic transmissions. (Our early sales literature shows the BOSS 429 as an option, none were actually built). An oddity with the GT was the Action Special Equipment Package that included deluxe wheel covers, white sidewall tires, a vinyl roof, and most notably a bench seat replacing the standard bucket seats.

Montego
For 1970, the Montego underwent a revision, with the Mercury mid-size range dropping the Comet name entirely. The sedan and wagon chassis gained an inch of wheelbase. The front fascia was styled with a forward-thrusting grille and hood with concealed headlamps on MX Brougham trim. The convertible was dropped from the model range, with the two-door hardtop adopting a new and sleeker roofline. Following the introduction of exterior wood-panel trim for Montego station wagons in 1969, for 1970 Mercury added the Montego MX Villager wagon serving as the equivalent of the MX Brougham model.

Montego Engines
The V-8 engine lineup was revised, dropping the 390 and 428 V-8s in favor of the newer 429 CID unit with 360 HP, the higher-performance versions were reserved for Mercury Cyclones. The 351 Windsor V-8 was replaced with Cleveland “canted valve” V-8 of the same displacement.

Historical
Mercurys won four NASCAR Grand National races in 1970.

1970 Mercury Mid-Size Car Facts – Powertrains

• Transmission Ratios 
  • Three-Speed Manual Transmission (Floor Shift on GT Models Only):
    • I-6,  302  & 351 2-bbl V-8: First: 2.99:1, Second: 1.75:1, Third 1:1. Reverse: 3.17:1.
    • 351 4-bbl V-8: First: 2.42:1, Second: 1.61:1, Third 1:1. Reverse: 2.33:1.
  • Four-Speed Manual Transmission:
    • 351 CID V-8: First: 2.78:1, Second: 1.93:1, Third 1.36:1, Fourth: 1:1. Reverse: 2.78:1 (N/A Station  Wagons).
    • 429 CID 4-barrel V-8: First: 2.32:1, Second: 1.69:1, Third: 1.29:1, Fourth: 1:1. Reverse: 2.32:1 (optional 351 CID V-8s).
  • Three-Speed Automatic Transmission:
    • 250 CID I-6 & 302 CID V-8: Low: 2.46:1, Second: 1.46:1, Direct 1.00:1. Reverse: 2.20:1 (C-4).
    • 351 CID V-8 Low: 2.40:1, Second: 1.47:1, Direct 1.00:1. Reverse: 2.00:1 (FMX).
    • 429 CID V-8: Low: 2.46:1, Second: 1.46:1, Direct 1.00:1. Reverse: 2.175:1 (Select-Shift).
• Rear Axle Ratios
  • I-6:
    • Three Speed Manual: All: 3.00:1; Optional: 2.79:1, 3.25:1.
    • Automatic: 2.79:1. Wagons 3.00:1; Optional 3.25:1
  • 302 V-8:
    • Three Speed Manual: 2.79:1 Wagons 3.25:1; Optional 3.00:1.
    • Automatic: 2.79:1 Wagons 3.00:1.
  • 351 2-bbl V-8:
    • Three Speed: 3.00:1.
    • Four-speed: 3.00:1.
    • Automatic: 2.75:1.
  • 351 4-bbl V-8:
    • Three Speed: 3.25:1.
    • Four-speed: 3.25:1.
    • Automatic: 3.00:1.
  • 429 Thunderjet V-8:
    • Four-speed: 3.25:1.
    • Automatic: 3.00:1.
  • 429 Cobra Jet V-8:
    • Four-speed: 3.25:1.
    • Automatic: 3.20:1.
  • 429 Super Cobra Jet V-8:
    • Four-speed: 3.91:1 or 4.30:1 Traction Lock.
    • Automatic: 3.91:1 or 4.30:1 Traction Lock.
• NOTE: More Detail and Optional Rear Axles: See 1970 Mercury AMA Specifications Sheet page 4 HERE.

1970 Mercury Mid-Size Car Powertrain Options

• Engines
  • 250 CID I-6 engine standard on Montego models, not available. on Cyclone models.
  • 302 CID V-8 engine optional on Montego models, not available. on Cyclone models.
  • 351 CID 2-barrel V-8 engine optional  Montego models, standard on Cyclone GT, not available on Cyclone and Cyclone Spoiler.
  • 351 CID 4-barrel V-8 engine optional all Montego and Cyclone GT, not available on Cyclone and Cyclone Spoiler.
  • 429  CID Thunderjet 4-barrel V-8 engine optional all Montego,  Cyclone GT, Standard Cyclone , not available Cyclone Spoiler.
  • 429 CID 4-barrel Cobra Jet V-8 engine optional Cyclone GT and Cyclone, Standard on Cyclone Spoiler. (Note this engine was available in Ram Air and Non-Ram Air).
  • 429 CID 4-barrel Super Cobra Jet V-8 engine optional Cyclone GT,  Cyclone, and  Cyclone Spoiler.
• Transmissions
  • Three-Speed Manual Transmission Standard 0n all 250 I-6 & 302- 351 CID V-8s. Not available on 429 CID V-8s.
  • Four-Speed Manual Transmission not available on 250 I-6 and 302 CID V-8, optional all 351 V-8s, and Cyclone GT, standard on Cyclone and Cyclone Spoiler.
  • Automatic Transmission: Optional All.

1970 Mercury Mid-Size Car Significant Options

• • Air-conditioner ($388.60).
  • Bucket seats, high-back with comfort vinyl trim ($119.20).
  • Cross-country ride ($9.10).
  • Deluxe seat and front shoulder belts ($15.60).
  • Deluxe seat belts with automatic seat back release on two-doors ($38.90).
  • Extra cooling ($7.80).
  • Front disc brakes ($64.80).
  • Heater and defroster ($22. 10).
  • Heavy-duty 55 amp alternator ($20.80).
  • Heavy-duty battery ($7.80).
  • High level ventilation ($15.50).
  • Instrumentation group including tachometer, oil temperature and ammeter gauges ($77.80).
  • Left-hand remote-control racing mirror ($13).
  • Low gear lockout ($6.50).
  • Luggage carrier with adjustable roof rails for MX wagon without air deflector ($54.50); with air deflector ($73.90).
  • Power bench seat ($73.90).
  • Power steering ($104.90).
  • Power windows ($104.90).
  • Protective vinyl body side molding ($25.90).
  • Radio, AM ($60.90).
  • Radio, AM/FM stereo ($212.50).
  • Rear facing third seat, MX station wagon ($63.70).
  • Rear seat speaker, dual ($27.30).
  • Seats, Comfort weave vinyl, MX with bench seat ($32.40).
  • Seats, Upbeat spectrum stripe, MX two-door with bench seat ($32.40).
  • Seats, Upbeat watch plaid, MX with bench seat ($32.40).
  • Steering wheel, Rim-blow ($35).
  • Sun roof, Montego two-door hardtops only ($375.70).
  • Tinted glass ($36.30).
  • Tinted glass Windshield, ($25.90).
  • Tires, Mud and snow ($7.80).
  • Tires, traction F70-14 with 250, 302 engines ($77.80); with 351 engines ($59.60).
  • Tires, traction G70-14 whitewall, with 250, 302 engines ($83); with 351 engines ($64.80).
  • Tires, traction G70-14, with 250, 302 engines ($95.90); with 351 engine ($77.80); with 429 engine ($59.60).
  • Tires, whitewall F78-14 with 250 or 302 engines ($31.10); with 351 engines ($49.30).
  • Tires, whitewall G78-14 with 351 engine ($49.30); with 429 engines ($64.80); with 351 engines ($46.70).
  • Trailer-towing package includes: 351 two-barrel engine; power disc brakes; competitive handling package; extra-cooling package; heavy-duty alternator; heavy-duty battery, with air conditioner ($151.60); without air conditioner ($159.40).
  • Vinyl roof ($99.80).
  • Wheel covers, Deluxe ($25.90).
  • Wheel covers, Luxury ($41.50).
  • Wheels, Styled steel ($38.90).
  • Windshield wipers, Interval ($25.90).