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Old 02-15-2004, 12:33 AM   #1
GMCLS1
1987 GMC Sierra Classic
 
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Join Date: Feb 2004
Location: South Carolina
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LS1 engine swap

I have a 87 GMC sierra classic with a 5.0L TBI engine and a 700r4 trans. What mods would I have to do to install an LS1 engine and 4L60 trans?
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Old 02-15-2004, 01:06 AM   #2
ItsNotABlazer
The full convertible guy
 
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Heres a few sites that might help you if noone else can supply any info. A friend of mine is looking at doing this to a 86 he has.

www.LS1truck.com www.ls1tech.com www.gm-trucks.com and maybe www.fullsizechevy.com

Good luck on the swap and keep us posted on what you find. Oh and welcome to the board.

Brad
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Old 02-15-2004, 10:34 PM   #3
GMCLS1
1987 GMC Sierra Classic
 
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LS1 Engine swap

Thanks this is exactly what I was looking for!
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Old 02-15-2004, 10:59 PM   #4
gldevall
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Look up 68LSS1 on the board. He's doing one for his '68. He may be able to add some input.
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-2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels
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