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1978 Specifications

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    This is the information I have gathered so far on the technical specifications for the 1978 Firebird Trans Am.  I am still trying to gather more info.
Overall Length
196.8 In.
Overall Width
73.4 In.
Height
49.5 In.
Wheelbase
108 In.
Weight
3607 lbs.
Fuel Capacity
21 Gal.
Engine Oil (SAE 10W 40)
6 qts.
Transmission Fluid (Dextron II)
2.5 qts.
Rear Axle (SAE 80 GL5)
4.25 pts.
Cooling System
22.9 qts.
Distributor type
HEI breakerless
Distributor Rotation (Thanks Jack)
Counter-Clockwise
Firing Order
1-8-4-3-6-5-7-2
Spark Plug Gap (R45TSX)
0.060 in.
Pontiac 400 (L78) Horsepower
180 hp
Engine Compression
7.7 to 1
Bore and Stroke
4.12" x 3.75"
Timing (@575 r.p.m.)
16° btdc
See Pontiac Historical Services Info for more Specifications: Click Here
     If you need help with any conversions, here is a good program to convert just about anything you want to know.  Not only relating to fluids, but all measurements as well.
Conversion Program

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