LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

5.3 truck engine in 85 trans am

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Old Dec 21, 2008 | 10:06 PM
  #1  
T TA 355's Avatar
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5.3 truck engine in 85 trans am

I thought you could use all of the acc. from a truck engine except the oil pan. I guess I'm wrong? I have been searching I thought someone had done it. chop the hood.
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Old Dec 21, 2008 | 10:10 PM
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: 5.3 truck engine in 85 trans am

no the alternator is too tall. So either buy relocation brackets or a complete fbody setup
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Old Dec 22, 2008 | 08:20 PM
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From: Guelph, Ontario
Car: 89 IROC/05 RX8
Engine: LS1/LS1
Transmission: T56/T56
Axle/Gears: 3.42 GM/3.55 8.8
Re: 5.3 truck engine in 85 trans am

You can use all of the truck stuff if you really want to.

Pan will hang too low though and your probably going to tear the bottom off it on your first drive.

As for acc, the alternator sits high and would require a wide cowl hood (jongbloed or something i think covers) and you can use the truck intake also if you go this route.

Speartech's thirdgen uses truck acc.
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Old Dec 23, 2008 | 07:44 PM
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T TA 355's Avatar
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Re: 5.3 truck engine in 85 trans am

They have a 2001 ls1 from a TA with a crank underdrive pulley.
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