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Starter mount for LS4 with FWD F40 6 speed manual transmission

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Starter mount for LS4 with FWD F40 6 speed manual transmission

 
Old 02-12-2011, 06:47 PM
  #21  
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Here are some pictures of other transmission related items on this swap:

Front transmission bracket:




Rear transmission bracket:



Bushings for the mounts ($8 each):


Flywheel (all 12 lbs of it):


Custom Tripods and axle stabilizer (needed to move seal surface out 1"):






Axles - custom tripods and factory GM axle shafts & outboard CV's:
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Old 12-25-2011, 09:50 PM
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Updates?
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Old 12-26-2011, 05:43 PM
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It has been quite some time since I updated this thread...

Custom flywheel I designed and machined:



10" clutch for flywheel:



Flywheel/Pressure plate installed:



Rear transmission mount complete:


Intermediate shaft completed (used 2 Saab units to make a longer one), also intermediate bearing support housing complete:


Rear engine mount complete:


Front engine mount, alternator mount and AC mount complete:



Front transmission mount and bolt on starter mount complete:



Coil relocation brackets complete:


Shifter Cable bracket complete:



Valve covers smoothed and modified DOD valley tray:


Here are some overall shots:




Pretty much down to the wiring now...
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Old 12-26-2011, 06:53 PM
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Looks good,is the crossover above the bottom of the cradle,does it fit well running under the oil pan?I want to use the factory manifolds,but im not crazy about the crossover under the intake.
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Old 12-27-2011, 01:33 PM
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The cross under pipe does hang below the cradle about 1/2 - 3/4"... I could have raised the drivetrain or notched the oil pan, but with the exhaust being off to the side, it shouldn't be much of an issue.
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Old 10-17-2016, 06:50 PM
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Default engine & trans length

Do you happen to know what the measurement from balancer to the end of the transmission is? Looking into doing a swap on a fwd gm.
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Old 10-22-2016, 09:39 AM
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Originally Posted by Andrew Sayers View Post
Do you happen to know what the measurement from balancer to the end of the transmission is? Looking into doing a swap on a fwd gm.
The LS4/F40 is 37 3/8" wide at the balancer.
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Old 10-22-2016, 09:59 AM
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I haven't posted much recently, but I have been working on my 2nd LS4 F40 swap. As part of this project, I redid the design of the starter mount to make it more universal and work with other transmissions. Now it only uses the 2 bellhousing bolt holes for placement, but the thick long sleeves on the sides keep it very stiff.
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Instead of making another flywheel on a manual lathe/vertical mill, I sent the print to a CNC shop and had one made:
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I also made a LS4 specific oil bypass plate so I could relocate the OPSU off the valley cover as well as have room for an analog oil pressure sender for the gauges in the Fiero and one spare oil feed outlet.
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Old 10-22-2016, 10:24 AM
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Fantastic work, you have mad skills. That car has to rock, feel free to post up some pics of the car.
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Old 10-22-2016, 10:32 AM
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Originally Posted by rottonj View Post
Fantastic work, you have mad skills. That car has to rock, feel free to post up some pics of the car.
Thanks!

The paint is crap, but the pictures make it look much better! The swap as been on the road 3+ years and 36K miles. I long hauled the HRPT (2800 miles) this summer and averaged 23 mpg for the entire trip. The wheels/tires were new this summer 17x8 with 235/40/17 and 18 x 9.5 w/ 285/30/18 RE11s
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Old 10-22-2016, 11:25 AM
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That is a super clean ride, you are a perfectionist for sure and it shows. Will the next build be this same body , or the fastback model?
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Old 10-22-2016, 02:09 PM
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The crazy thing is at this moment I don't know what body style this 2nd swap will go into because I don't have a Fiero for this swap. When I get further along, I will likely buy another 88 Fiero in the sub 75K mile range (or one with exceptional paint) and then install the drivetrain.

I used to be a huge fan of the fastback style, but over the years my tastes have migrated to the 88 coupe style (this is what black Fiero is) and keep the exterior 100% stock except the wheels (and brakes). If the exhaust was quieter, it could be somewhat of a sleeper.
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Old 10-22-2016, 05:20 PM
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Those are big *** brakes for a small but very well rounded car, probably put a Cobra to shame stopping. I've been a fastback fan from the start, although my fab skills are nowhere good enough to handle that type of project. Keep up the great work!
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Old 10-22-2016, 06:53 PM
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I would be a great candidate for next 6speed swap
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Old 10-22-2016, 07:32 PM
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Six speed auto with tap shift would be good, but in my opinion not a standard 6 speed transmission in this platform.
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Old 11-07-2016, 07:32 PM
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Damn Guru you are a rocking. Almost wonder if I should I have went to you for my 6.0 swap parts into my Fiero. A lot of the parts you have made from scratch are very similar to the parts I bought. Not so much if, but when I go 6 speed stick, I will be in touch with you.
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Old 12-12-2016, 10:57 PM
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Default starter mount and flywheel

Do you plan on offering any starter mounts and flywheels up forsale and if so how much...I plan on getting my old Beretta GTZ back and I will make this swap happen!
Originally Posted by fieroguru View Post
I haven't posted much recently, but I have been working on my 2nd LS4 F40 swap. As part of this project, I redid the design of the starter mount to make it more universal and work with other transmissions. Now it only uses the 2 bellhousing bolt holes for placement, but the thick long sleeves on the sides keep it very stiff.



Instead of making another flywheel on a manual lathe/vertical mill, I sent the print to a CNC shop and had one made:



I also made a LS4 specific oil bypass plate so I could relocate the OPSU off the valley cover as well as have room for an analog oil pressure sender for the gauges in the Fiero and one spare oil feed outlet.

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Old 12-16-2016, 09:16 PM
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Originally Posted by 1990BerettaGTZ View Post
Do you plan on offering any starter mounts and flywheels up forsale and if so how much...I plan on getting my old Beretta GTZ back and I will make this swap happen!
PM sent.
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Old 06-26-2018, 02:03 PM
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Have you finished your second swap yet? I'm interested since I'm about to pickup a Fiero and so this same swap with my son. Also was wondering how many of these parts your willing to fabricate for me. I'd rather support you than V8 Archie. Let me know and I'd like to see pics if you have them off your second swap.
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Old 06-30-2018, 12:14 PM
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Originally Posted by Rentthol View Post
Have you finished your second swap yet? I'm interested since I'm about to pickup a Fiero and so this same swap with my son. Also was wondering how many of these parts your willing to fabricate for me. I'd rather support you than V8 Archie. Let me know and I'd like to see pics if you have them off your second swap.
Sorry, I haven't finished it yet, but there has been more progress detailed in my build thread on Pennocks Fiero Forum: http://www.fiero.nl/forum/Forum1/HTML/094411.html

Since the first of the year I have been traveling 3-5 days per week for my day job, which has slowed down my progress, but please review the thread on PFF for the more recent updates on the accessory drive and water pump solutions.

I also sourced and installed a 3.09 final drive (replaced the 3.55) and that upgrade was quite nice as well.
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