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Reload this Page Vortech 7.4 swap
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Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

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Old 08-31-2009, 12:33 PM   #1
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Join Date: Jan 2007
Location: Lapeer, MI
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Car: 1989 Pontiac GTA
Engine: N2o Injected 350

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Vortech 7.4 swap
Has anyone tried this engine in a 3rd gen? It seems like the only information I could find for a reason everyone uses a carb. or aftermarket fuel injection is because of pulley clearance issues.
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Old 08-31-2009, 03:57 PM   #2
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Car: '84 Trans Am WS6
Engine: LQ9 w/ Wegner LS6 heads
Transmission: 4L60E, seeking good used NV3550HD
Axle/Gears: 7.5" 3.23:1, posi, swapping to 8.5"

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Re: Vortech 7.4 swap
You'll need an aftermarket hood, but otherwise it's alot like any other 454 install.
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Old 09-01-2009, 10:13 AM   #3
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Re: Vortech 7.4 swap
I could swear i read somewhere that there was a clearance issue with the pulleys on one of the bigblocks?
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Old 09-01-2009, 08:23 PM   #4
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Car: 87 Iroc-Z
Engine: 305 tpi
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Re: Vortech 7.4 swap
enongram had some interference with the power steering pulley and the steering box. he had the 502 ramjet. you just have to choose different brackets
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Old 09-01-2009, 08:23 PM
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Reload this Page Vortech 7.4 swap
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