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Pontiac Firebird
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Will a 305 fit in a 1987 Pontiac Firebird with a 2.8L?


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2011-09-13 17:34:53
2011-09-13 17:34:53

Yes a 305 will fit in a 1987 Pontiac firebird,I just got done putting

a 350 in mine ,but if i was you I would do some research first

because I ended up spending a lot more than I wanted too

because you have to change the transmission ,get a longer

driveshaft or extend the one you have on the car,none of

the parts on your 2.8 engine will work except the altinator

and I had to fabricate a bracket,motor mounts are a pain to

change that was the worst part besides bypassing all my instruments

put all mechanical instruments in it.

check this sight out for questions I might

not be able to answer .Also if it is fuel injection thi is a problem.


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Between 165 and 225 depending on exactly which model.

The firing order for the 1993 Pontiac Firebird is 1, 2, 3, 4, 5, 6. This is for the 5.7 Liter V8 engine.

My 1992 Fire Bird has a 305 throttle body fuel injected.

"A stock 1987 Camaro Z28 305 V8 engine has at least 280 horsepower" Sorry, but the '87 305 only puts out 165 to 215 hp depending on the performance package. The 350 of that year only increased this by 10 hp to 225. Source:

I have an 88 firebird with a 305 V8 with a 3 inch custom exhaust and it pushes around 350 so my guess would have to be somewhere around 300 hp it kinda depends on what else is in the car.

I don't have the Formula AT, just a 1987 Firebird with 305. The relay is located on firewall drivers side. There are 2 that look similiar. Go to this web site for a picture and part number. or this site to do further searches on the car.,PONTIAC,1987,FIREBIRD+TRANS+AM,1251436,5.0L+305cid+V8+4BBL+(H),ELECTRICAL-SWITCH+xxampxx+RELAY why the relay? check the fan temp switch on the right lower engine block.

On my 1991 Firebird 305 TBI the computer shuts down acceleration after 110 mph. I would assume it is probably the same for a 1994.

Hey, I got a 91' firebird 305 tbi that had the same exact's your speed sensor or O2 sensor....(or both)

Yes, They are the same. GM uses the same parts for Pontiac and Chevy, although the carb may be different therefore the carb from the Pontiac will not always work with a Chevy.

either 170hp or 200-230hp depending on transmission and exuast choices.

well, i have a '91 that came with the original 305, but after slinging a rod in it, i installed a 350. but i am told you can make it into a 383

1-8-4-3-6-5-7-2 Clockwise Rotation On Distributor

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None, as the Firebird Formula wasn'toffered in 1986.

Answer Chevy engines are totally different from Pontiac engines. you'll need an adapter plate to fit it to a Pontiac transmission, assuming you're using the firebird tranny. check they have the adapter plates there.OK...I don't see where the Pontiac engine comes into play here. In '86 it's a Chevy engine in that Firebird. As far as I know, the flywheel from the 305 will bolt right up to the 350. Use the 305 flywheel, clutch and pressure plate and possibly the starter. Chevy had two different diameter flywheels/flexplates.

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Check to see that its getting spark at the plugs and if it isn't, the ignition module inside the distriburetor probably went bad. Replace it and you will be back in business.

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will a mid 80s 305v8 fit in a 1993 firebird that had a lt1 in it

Depends on whether you're referring to a 305 TBI, 305 TPI, 350 TPI...

Net hp at the rear wheels if an automatic is probably around 145. If a stick car probably 160-165 net hp.

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.

Instead of having a 2.8 v6 or non h.o 305. It would have a 350 tpi or high output 305. It would have a different spoiler , suspension , and have formula stickers on the doors.

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