Engine compression lowered from 10.7:1 to 8.6:1.

Factory headers replaced the simpler exhaust manifolds which featured

    webbing between the individual pipes.

Clutch linkage changed to ease pedal effort.

Brake fluid reservoir made integral with master cylinder.

Rear luggage tray and engine compartment bolts replaced with quick release

    aircraft type screws.

Oil level dipstick lengthened.

Speedometer cable rerouted.

Accelerator cable revised.

Interior carpets an rear luggage tray lining revised.

Splash shield installed to eliminate water getting up over the gas tank

    and also installed to protect the horn and radiator fans.

351 Cleveland changed from a 2 bolt main to a 4 bolt main.

Changed to a more aggressive camshaft.

Went from a single point to a dual point distributor.

Seat material was changed several times.

Switched to Pirelli CN73 (225/70-15 tires).

Top speed increased to 160 mph.

Fans were revised from manual to automatic.

Pantera L

351 Cleveland changed back to a 2-bolt main

The camshaft was retarted by 4 degrees.

Pirelli tires replaced by Goodyear bias-belted "Arriva" tires

Engine cover redesigned

Rear deck support pistons inverted so that the sealed spring mechanism was

    on top.

All electrical relays put on a single panel on the left side of the

    interior; matching fuse panel on the right hand side.

Seat-belt warning light and buzzer added.

92 amp-hour batter changed to a 90-amp-hour battery (Italy to US).

Radiator baffle revised to eliminate water bypassing the radiator and not

    getting properly cooled.

New universal joints introduced; had lifetime lubrication and improved

    bearing seals.

Borg and Beck clutch assembly introduced.

Revised front-wheel opening flanges to lessen front tires rubbing on

    inside of fenders.

Note: No European Pantera L models received the black impact bumpers.

1974 Pantera GTS

Al chrome blacked out

Ferrero steering wheel with Ghia emblem

GTS wheel logos.

Pop riveted fiberglass fender flairs

"GTS" script mounted where "Pantera" script was (on

    the rear).

"Pantera" script in place of "DeTomaso" script (on the

    rear).

Flat black rocker panel stripe widened and "Pantera GTS" written

    on the stripe.

Gloss black metallic front hood and rear compartment deck.

Ghia emblem on the font bumper (instead of the usual DeTomaso emblem).

Dash mounted clock installed.

GTS emblem on the gear-shift knob.

1981

Phil Hill had this to say:

Popular Mechanic's Exotic Cars - Test Results

Cars                     1/4 mile slalom skidpad Braking Lap Time

                          (sec @ mph)  (sec) (cw/ccw s) 70-0 (ft) (min) MPG $USK Points

Pantera GTS 14.949 @ 96.15 8.91 12.59/12.83 166.6 1:55.9 15 60 19

BMW M1 14.657 @ 97.40 8.71 12.46/12.59 181.1 1:54.1 10 115 28

Porsche 928 15.766 @ 88.75 8.98 12.83/13.19 170.1 1:56.8 11 38 36

Lamborghini Countach 14.994 @ 96.25 8.79 12.85/12.79 184.1 1:55.5 7 116 40

Ferrari 512 Boxer 15.002 @ 95.54 9.00 13.26/13.22 129.2 1:57.2 8 100 41

Ferrari 308 GTSi 15.950 @ 87.63 9.49 13.00/13.43 158.5 2:03.0 14 52 45

Porsche 924 Turbo 17.197 @ 78.67 9.19 12.78/12.87 178.1 2:03.4 21 27 46

Duntov Turbo 15.759 @ 89.02 9.21 13.00/13.49 173.1 2:06.3 14 37 48

Manta 15.247 @ 91.18 9.10 13.41/13.54 171.4 2:04.9 16 25 49

Maserati Merak 16.543 @ 85.22 9.12 13.01/13.48 167.5 2:04.1 10 41 53

Lotus Esprit 17.888 @ 76.92 9.38 12.98/13.24 199.9 2:04.7 16 37 63

BMW 633 CSi 16.795 @ 83.17 9.67 13.36/13.74 180.6 2:06.4 19 34 66

Jaguar XJS 16.659 @ 83.25 10.17 13.78/13.80 166.7 2:03.3 9 30 67

DeTomaso Longchamp 16.825 @ 86.62 10.42 13.03/13.32 237.9 2:01.8 12 69 69

Aston Martin Volante 16.859 @ 85.65 9.90 14.16/14.12 176.2 2:02.3 11 98 70

Mercedes Benz 380 SL 18.054 @ 75.18 9.89 13.38/13.34 191.2 2:09.2 18 39 74

Pantera links

Back