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Another LS4 swap has begun by FieroAddiction
Started on: 10-26-2008 09:20 PM
Replies: 85
Last post by: stickpony on 10-22-2009 09:19 PM
stickpony
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Report this Post05-23-2009 12:44 PM Click Here to See the Profile for stickponyClick Here to visit stickpony's HomePageSend a Private Message to stickponyDirect Link to This Post
 
quote
Originally posted by FieroAddiction:

It's a tight fit on the cradle, but it doesn't require a huge amount of cradle modification to fit. It's a better fit to the cradle than a Northstar. The crank pulley and water pump have plenty of clearance at the passenger side frame rail. The tensioner pulley if left in it's stock location will require a small notch or dent in the frame, it just touches. The front idler pulley (on the water pump housing) touches the firewall behind the passenger seat. The alternator is well into the strut tower. The serpentine belt on the LS4 is the longest belt ever used on any GM vehicle, and it required the specially designed hydraulic tensioner.

I'm going to try something different than what I'd normally do. Since this car will have power steering I'm going to keep the P/S pump, and I'd like to keep the OE accessory belt routing and tensioner for reliability. This would mean a rather large modification to the right strut tower for alternator clearance. It looks like it can be done without changing the location of the top of the strut, but it will require a 2.5" coil-over spring (which was planned anyway). I've done the mock-up on an '84-87 chassis and it's no problem, but the '88 chassis has much less room between the struts. If I cannot fit the alternator in the stock position without changing the position of the strut on the '88, I will need to relocate the alternator down near the axle and notch the frame.

Jon


what about moving the engine more to the drivers side? how much clearance is there between the transmission and the frame rail?
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Spune
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Report this Post08-07-2009 02:33 PM Click Here to See the Profile for SpuneSend a Private Message to SpuneDirect Link to This Post
Any progress?
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Rickady88GT
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Report this Post10-22-2009 12:53 AM Click Here to See the Profile for Rickady88GTSend a Private Message to Rickady88GTDirect Link to This Post
Is the car done?
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Dennis LaGrua
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Report this Post10-22-2009 07:22 PM Click Here to See the Profile for Dennis LaGruaSend a Private Message to Dennis LaGruaDirect Link to This Post
As far as I know Jon Lagler is now completely out of working on Fieros and also out of the parts business. I would not expect any more updates on this post.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, 3.4" Pulley, N* TB, LS1 MAF, Flotech Exhaust Autolite 104's Custom CAI 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

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Rickady88GT
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Report this Post10-22-2009 07:52 PM Click Here to See the Profile for Rickady88GTSend a Private Message to Rickady88GTDirect Link to This Post
Yeah, I kind of expected that. But who owns the car? Was it sold off uncompleted? Or was it finished and sent off?
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stickpony
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Report this Post10-22-2009 09:19 PM Click Here to See the Profile for stickponyClick Here to visit stickpony's HomePageSend a Private Message to stickponyDirect Link to This Post
 
quote
Originally posted by Rickady88GT:

Yeah, I kind of expected that. But who owns the car? Was it sold off uncompleted? Or was it finished and sent off?


yes, Inquiring minds want to know!

fyi, if anyone needs a custom 4.9L chip for their fiero, i'm your man!
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