1970 PONTIAC GTO

 

PRODUCTION

2dr Hardtop

32,731

2dr Convertible

3,621

2dr Hardtop-Judge

3,635

2dr Convertible-Judge

162

TOTAL

40,149

 

 

PRODUCTION BY ENGINE & TRANSMISSION

 

 

HARDTOP (includes The Judge)

400 c.i. 350hp manual trans

9,348

400 c.i. 350hp automatic trans

1,8148

400 c.i. 366hp manual trans

3,054

400 c.i. 366hp automatic trans

1,302

400 c.i. 370hp manual trans

627

400 c.i. 370hp automatic trans

140

455 c.i. 360hp manual trans

1,761

455 c.i. 360hp automatic trans

1,986

TOTAL

36,366

 

 

CONVERTIBLE (includes The Judge)

400 c.i. 350hp manual trans

887

400 c.i. 350hp automatic trans

2,173

400 c.i. 366hp manual trans

174

400 c.i. 366hp automatic trans

114

400 c.i. 370hp manual trans

24

400 c.i. 370hp automatic trans

13

455 c.i. 360hp manual trans

158

455 c.i. 360hp automatic trans

241

TOTAL

3,783

 

 

THE JUDGE

400 c.i. 366hp manual trans

2,380

400 c.i. 366hp automatic trans

1003

400 c.i. 370hp manual trans

325

400 c.i. 370hp automatic trans

72

455 c.i. 360hp automatic trans

17

(14 hdtps 3 conv)

TOTAL

3,797

   

 

The 1970 GTO was facelifted--the spit grille theme continued along with the Endura bumper. The GTO looked a lot like the Firebird except for the four headlights. On the sides, there were creases above each wheel well, emphasizing the muscular look. The rear bumper wrapped around the rear fenders with the taillight lenses following the bumper's contour thereby serving as the side market lamp as well.

A GTO emblem was used on the grille, along with red, black or white, depending on body color, decals on the rear deck lid and on each front fender behind the wheel well. A small 455 CID decal was placed beneath the GTO fender decal, if so equipped..

The interior, save from different trim and appointments was a carryover, although a 140mph speedometer was used for the first time. The top two-thirds of the instrument panel was finished with simulated wood applique while the bottom third was covered with engine-turned aluminum applique. A bench seat was still on the option list.

The Deluxe steering wheel was standard equipment on the GTO. It was unchanged from 1969. Also unchanged was the Custom Sport steering wheel. A third wheel was added to the option list, the Formula wheel which was first seen on the 1969 Firebird Trans Am. The three-spoke wheel was covered with urethane foam. The Formula was available only in black and came with a black steering column. Power steering was mandatory with it. A new interior option were power door locks.

The standard antenna on the GTO was imbedded in the windshield. A power antenna was optional and mounted on the right rear quarter.

The engine line-up changed for 1970. The 400 c.i. 2-bbl V-8 was dropped and a 455 c.i. 4bbl V-8 was added to the option list. The 455 was rated at 360hp with 500 ft/lbs torque. The standard engine was the 400 c.i. V-8 rated at 350hp with the Ram Air III and IV optional. Compression ratios were reduced slightly on all engines--10.25:1 on the standard 400, and 10.5:1 on the RA III & IV. Both Ram Air engines came with functional hood scoops.

The suspension was outfitted with a larger front anti-sway bar measuring 1-1/8" and for the first time, a rear bar measuring 7/8" was used. Other GM intermediates had used a rear bar since 1965. The steering system was also improved. If power steering was ordered, a variable ratio system was used with a ratio of 16.0:1 to 12.4:1.

An interesting option was the Vacuum Operated Exhaust system. By pulling a dash mounted knob, engine vacuum would open baffles in the mufflers, thereby relieving back pressure and so producing more power. All GTOs came with a dual exhaust system with chrome quad outlets.

The Judge continued as an option package. The rear wing was redesigned and a small front "chin" spoiler was added to the package. Not all Judges came with the front spoiler, though. The wing was painted to match the body color, though some came through painted black. In addition, some wings came with a small side stripe and the wing itself was available as an option on other GTOs. The Judge came with a blacked-out grille, blacked-out hood scoop openings, tri-colored side stripes over the side creases and The Judge decals on the front fenders and on the deck lid, replacing the standard GTO decal. The Judge side stripes were also available on regular GTOs.

The Judge decals matched the color scheme of the side stripes. There was also a Judge decal on the glove box door.

The Judge came with a Hurst "T" handle shifter if ordered with a manual transmission. Standard engine was the Ram Air III with the Ram Air IV optional. Late in the model year, the 455 c.i V-8 could be ordered with the Judge.

All this, more power, more luxury, more option, translated to fewer sales. Still The 1970 GTO was a great looking car and could still perform with the best of them.

 

SPECIFICATIONS

Wheelbase

112"

Track f/r

60"/60"

Height

52."

Width

76.7"

Length

202.9"

Weight

3,641

 

 
   

ENGINES

 

400 c.i. V-8 4V

C.R.

10.25:1

Horsepower

350@5000

Torque

445@3000

 

 

400c.i. V-8 4V Ram Air III

C.R.

10.5:1

Horsepower

366@5100

Torque

445@3600

 

 

400 c.i. V-8 4V Ram Air IV

C.R.

10.5:1

Horsepower

370@5500

Torque

445@3400

 

 

455 c.i. V-8 4V

C.R.

10.25:1

Horsepower

360@4300

Torque

500 @2700

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