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V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

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Old 06-08-2008, 01:23 PM   #1
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Join Date: Nov 2006
Location: Lubbock TX
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Car: '90 Camaro RS, '94 Miata, '95 F-250
Engine: 5.7 TBI V8, 1.8 PFI L4, 7.5 PFI V8
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'86 and '87 Engine Question

What is the difference between the '86 and '87 2.8 V6 engines?

Will the parts (oil pan, intake, exhaust manifolds, valve covers, timing cover ballancer flexplate and electronics) off my '86 fit on a '87

And will my '86 auto tranny bolt up?
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'90 Camaro RS (Daily Driver) 5.7l TBI V8/4L60/2.73 Posi
Soon to Be: TBI 355ci Holden V8/4L80E/2.73 Posi

'94 MX5 Miata (Cruiser) 1.8l L4/5spd/4.10 LSD
Soon to Be: 6.6l 406ci LS3 PFI V8/6spd/4.11 Posi

'95 F250 XLT
(Tow Rig) 7.5l V8/5spd/3.55 Posi
Soon to Be: Sold For A Range Rover 4.0l V8
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Old 06-08-2008, 02:47 PM   #2
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Join Date: Aug 2006
Location: Knoxville, TN
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Car: '87 Camaro / '87 Chevy K10
Engine: 3.4L MPFI (soon) / 5.7L TBI
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Axle/Gears: 3.42 / 3.73

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Re: '86 and '87 Engine Question

They are the exact same engine from what I know. Vacuum line routing will sometimes differ greatly between engine years, though. I would recreate one system instead of trying to merge the two.
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Old 06-12-2008, 02:21 AM   #3
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Re: '86 and '87 Engine Question

I think the 87 was the first year for internally balanced, but that won't affect you if you don't swap major internals.
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Old 06-12-2008, 09:39 AM   #4
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Location: Knoxville, TN
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Car: '87 Camaro / '87 Chevy K10
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Axle/Gears: 3.42 / 3.73

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Re: '86 and '87 Engine Question

It was actually earlier than that, but I can't find the thread firstfirebird mentioned it in(Yet Another 3.4 Swap by me), due to search being broken again. I believe he said it was 84 or 86?
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Old 06-12-2008, 09:39 AM
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