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poop ANSWER: Wow really intelligent response! Anyhow, they are as follows: 400/180hp Automatic: YA,YU (standard L-78 engine) 400/220hp Automatic: X7 (L78-W72 engine) 400/220hp Manual: WC (L78-W72 engine) There were also two block castings in 1978 the standard passanger car "500557" and the revised "XX481988". Some of the standard L78 cars also received the XX block, it was basicly luck of the draw. The L78-W72 cars are believed to have all gotten the revised (stronger) XX block casting.
What else can I help you with?
Did a 1978 Pontiac Firebird Esprit with a 350 cubic inch engine come with a catalytic converter?
Yes.
What vechicles does a ac delco pf45 oil filter fit?
firebird 1978 400 engine pontiac
What is the placment of wires from the distributor to the spark plugs on a 1978 Pontiac Firebird?
Which engine, V6 or V8?Which engine, V6 or V8?
Will a 350 Chevy bolt on to a 1978 firebird transmission?
only a Buick, olds or Pontiac engine will bolt to a Pontiac tranny as Chevy blocks have a different bolt pattern.
How many quarts does a stock 1978 Firebird 4bbl 350 need?
if it is a Pontiac engine it will take 5 quarts, 6 quarts with a filter change.
What size rear speakers go in a 1978 Pontiac firebird?
6"x9"
What columns are compatible with a 1980 Pontiac Firebird is a 1979 firebird or even a Camaro compatible with a 1980 firebird?
1978-1981 Camaro and Firebird steering columns are all the same.
Where is the horn relay on a 1978 Pontiac Firebird?
On the core support, drivers side of the radiator.
What is the oil capacity of a 1978 Trans Am?
The 1978 Pontiac Firebird Trans Am engine oil capacity is five quarts. The 305, 350, and the 454 cubic inch motors all had the same motor oil capacity.
How do you take off the dashboard on a 1978 Pontiac Firebird?
start pullin screws till its off
Will a 1978 camaro z28 rear end fit a 1979 pontiac firebird?
no. but it will fit on a garbage truck
How do you find info on 1978 Pontiac Firebird Trans Am and short block 400 engine specs?
You can start by starting a dialogue with the gentleman at www.78ta.com He has a good help section, has links to companies that sell literature on the subject, white papers on the Pontiac 400, and is open to direct questions.
