swapping 2.8 block and heads for 3.4 question
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Joined: Jun 2009
Posts: 17
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From: TN
Car: 89 Firebird
Engine: 2.8 v6
Transmission: 5 speed Manual
swapping 2.8 block and heads for 3.4 question
i have been reading a lot on here about swapping my bad 2.8 block and heads for a 3.4 block and heads. i printed out several different post on here about doing it and am pretty confident i have it down. there is just one issue i have with it. before my 2.8 went i had installed the pacesetter headers on it. i cant find anything in here about if they will transfer over to the 3.4 block or not. i cant understand why they wouldn't just want to check and make sure. they were only on the 2.8 for a month or so would hate to no be able to use them anymore. plus i like the sound of my current exhaust setup.
Joined: Mar 2006
Posts: 4,367
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Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: swapping 2.8 block and heads for 3.4 question
You should have been able to find about a million and 2 posts about that..
Yes, they will fit.
Yes, they will fit.
Thread Starter
Junior Member
Joined: Jun 2009
Posts: 17
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From: TN
Car: 89 Firebird
Engine: 2.8 v6
Transmission: 5 speed Manual
Re: swapping 2.8 block and heads for 3.4 question
i did find a ton of posts on doing the swap but no one mentioned the headers at all. i figured there wouldnt be an issue just wanted to make sure before i start.
Joined: Mar 2006
Posts: 4,367
Likes: 15
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: swapping 2.8 block and heads for 3.4 question
I've seen swapping headers mentioned many times, between 2.8, 3.1 and 3.4.
Just bolt them up.
Just bolt them up.
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Re: swapping 2.8 block and heads for 3.4 question
Why wouldn't they work? The heads are the exact same, the block deck height is the exact same, the block re-uses the 2.8 mounting, et cetera. If you didn't realize these facts, then you didn't do enough reading.
Re: swapping 2.8 block and heads for 3.4 question
He is not a jerk. If you have researched the 2.8/3.1/3.4 swap, you would know that the heads and block are dimensionally-at least externally- the same, so all the accessories will bolt on, INCLUDING THE EXHAUST. If you have researched that and still ask this question, then you did indeed not do enough reading. Plus this has been asked and answered a bazillion times on this site...
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From: Oklahoma City
Car: 1991 Firebird
Engine: 3.1L +bolt ons
Transmission: 700R4
Axle/Gears: Moser forged, 3.73, SLP posi
Joined: Mar 2006
Posts: 4,367
Likes: 15
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: swapping 2.8 block and heads for 3.4 question
LOL...
Ok, lets get back on track before I have to lock this thread.
Ok, lets get back on track before I have to lock this thread.
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