LS4 / F40 swap - fieroguru (Page 11/216)
KissMySSFiero FEB 20, 09:39 PM
How would you locate the pressure plate bolt pattern on the new FW?
I have a few idea, but my machining experience is limited to brake rotors/drums and flywheel resurfacing.

What is the Clutch and PP from?

Good to see new progress. I'm building stuff vicariously through you right now.


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SSFiero@Aol.com 87 Gt-5spd-62k miles.

[This message has been edited by KissMySSFiero (edited 02-20-2011).]

fieroguru FEB 20, 10:00 PM

quote
Originally posted by KissMySSFiero:

How would you locate the pressure plate bolt pattern on the new FW?
I have a few idea, but my machining experience is limited to brake rotors/drums and flywheel resurfacing.

What is the Clutch and PP from?

Good to see new progress. I'm building stuff vicariously through you right now.




It is just a matter of measuring the pressure plate to get the average center distance between the holes, laying it out in AutoCAD with the x-y coordinate positions based on the crankshaft center, mounting the flywheel on the mill, dial indicate the center bore of the flywheel, reset the DRO, and then drill by numbers... quite simple, just takes time.

I am not sharing the details on the clutch/pressure plate yet. I want to make sure it works first.
dhobbs84sc FEB 21, 01:06 AM
Sweet thread. Love your work Guru. Im watching

Really should be in Construction Zone
KissMySSFiero FEB 22, 11:19 AM

quote
Originally posted by fieroguru:


It is just a matter of measuring the pressure plate to get the average center distance between the holes, laying it out in AutoCAD with the x-y coordinate positions based on the crankshaft center, mounting the flywheel on the mill, dial indicate the center bore of the flywheel, reset the DRO, and then drill by numbers... quite simple, just takes time.

I am not sharing the details on the clutch/pressure plate yet. I want to make sure it works first.



so not anything I could do at home. Thanks though.
Updates on this thread are always good.
I definitely want an LS4 in my future. But i'm still a year out from being stateside. No engine swaps til then.

The more I read about LS motors, the more Impressed I am. I want to get an S10 to do a 5.3/T56 swap. Those guys are pushing 30Mpg in a pickup and still getting 320/320 crank hp/tq.

Awesome work.

[This message has been edited by KissMySSFiero (edited 02-22-2011).]

fieroguru FEB 22, 02:02 PM
Been tracking down and purchasing some needed odds and ends...
LS7 MLS exhaust gaskets (manifold to head) - 2 required: GM# 12594171
Longer crankshaft/flywheel bolts M11 x 1.50 - 6 required: GM# 12563533
LS2 Throttle body 6 pin connector: GM# 13504128
2002 Z06 MAF 5 pin connector: GM# 12167121 - WRONG, WRONG, WRONG.. this number is for a 6 pin connector. I think 15305932 is the correct #, but need to purchase one to confirm.
DBW accelerator pedal 6-pin connector: GM# 88988944

I have a sickness for stainless steel button heads, so I ordered several more... to date I have spent about $165 on my button head madness for this swap.

[This message has been edited by fieroguru (edited 03-02-2011).]

dobey FEB 22, 02:17 PM
Cool, thanks for documenting those part #s.

You don't happen to know the part # for the LSx Main Cap Side Bolts (the small ones that go through the outside of the block, to the main caps) do you? I've been searching like crazy for the GM part #, but can't find it anywhere. I think it is the same for all the LS motors.
fieroguru FEB 22, 03:29 PM

quote
Originally posted by dobey:

Cool, thanks for documenting those part #s.

You don't happen to know the part # for the LSx Main Cap Side Bolts (the small ones that go through the outside of the block, to the main caps) do you? I've been searching like crazy for the GM part #, but can't find it anywhere. I think it is the same for all the LS motors.



I think this is the one you are looking for.
#12556127 -Cross Bolts though the block into the side's of the main caps - sold individually

I found it here:
http://www.performancetruck...wthread.php?t=428941
dobey FEB 22, 03:58 PM

quote
Originally posted by fieroguru:
I think this is the one you are looking for.
#12556127 -Cross Bolts though the block into the side's of the main caps - sold individually

I found it here:
http://www.performancetruck...wthread.php?t=428941



Ah, thanks! I spent two hours looking for the part, and couldn't find it anywhere. Wish those, I should have everything I need to get my short block back together now, after I finish cutting the bell housing for the starter mount.
fieroguru FEB 22, 08:21 PM
The head of the mill was dial indicated to ensure it was perfectly perpendicular (within .001" on a 12" circle to the table), then the flywheel bolted down and dial indicated to find the center within .001" and the DRO zero'd.


I am planning to drill the pattern for my clutch setup (10.8243") as well as the stock fiero pressure plate pattern (10.5550").
fieroguru FEB 23, 05:53 PM
The button heads showed up today, so the madness began:










A couple of my bags were mis-labeled and were 3/8" not M10, so I need to order them again. I still need to replace all the bolts in the valley cover, front timing cover, and all the ones holding the sensors in place... yes it is a sickness.

March 23rd - 31st Sara and the girls will be out of town, so I am targeting that week to paint all the parts for this swap... Then the button heads will really stand out!

[This message has been edited by fieroguru (edited 02-23-2011).]