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  #141  
Old 06-20-2019, 08:20 PM
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sgtpontiac sgtpontiac is offline
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So I found a few minutes today to put the motor roughly in it's place. I think it's going to be a decent fit, a few challenges but so far so good. I may have some difficulty getting the motor low enough to get the driveshaft to clear the underside of the rear cab mount/crossmember. I can only go so low with the motor, due to the oil pan/MII crossmember clearance, and I want the motor forward enough to clear the firewall. I also need to be sure of the clearance between the rack and pinion/harmonic balancer, so I was lucky enough to be able to borrow the rack back again for a few days. Hopefully I'll be solving these issues over the next few days without too much rework of anything! I guess a two piece driveshaft would be one way of resolving it.
LIKE A GLOVE!!! Nice...
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  #142  
Old 06-22-2019, 02:54 PM
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Spent a little more time on the truck this morning. I lifted the motor back out and rolled the frame around in order to cut open the rack and pinion notches (forgive me, they are still a little on the crude side, but once I weld the filler plates in, they will clean up better!). I can't hold on to the rack for too long (I borrowed it back again!) as it has to be returned - you can see the squashed tubes in some of the pictures, it must have taken a good hit.

I installed the rack and put the motor back into place. and it has just enough clearance around the rack. With the motor as low as I can, and have it set at 4 degrees....and the driveshaft is going to be too close, or even make contact with the cab mount crossmember. So, I think I'm going to eliminate the center mount, and sandwich a 1.5"X 3" tube along the top of the crossmember, with a good size notch cut out of the orginal crossmember. That will give me ample clearance for the driveshaft.

My logic is that although designed to allow for frame flex, I have hopefully eliminated a lot of that flex with the boxing and bracing, therefore I hope to bolt the cab (with rubber cushions either side) through the new tube and not have any problems. I do want to run a 1 piece driveshaft, and this should allow that. If any of you guys see any flaws in my plan, let me know soon!
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  #143  
Old 06-22-2019, 08:59 PM
anvil anvil is offline
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Looking good
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  #144  
Old 06-23-2019, 08:00 AM
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Bamamav Bamamav is offline
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Like all these "new design" engines, that LS is great, but in stock form UGLY! Too many wires and hoses coving it up! Hope you can get it prettied up easily!
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  #145  
Old 06-23-2019, 10:23 AM
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Burgerman Burgerman is offline
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Looking good
2X. Nice work Bill.
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  #146  
Old 06-23-2019, 10:27 AM
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I see nothing wrong, carry on
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  #147  
Old 06-24-2019, 08:04 PM
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Thanks everyone. I know what you mean Bama, about LS's being kinda ugly...but actually, they are starting to grow on me! I guess I kinda like how complicated they look now. There won't be much hiding all that mess on top of the engine.
I put the cab on this morning, just to confirm that there was enough room while I still had the rack and pinion in my possession. The cab still needed to come forward about 1", but I had room behind the passenger side head so I was happy with it. Assembled and welded the motor mounts, still to trim the frame side and tack it in place. Assembled and welded the tranny mount, still have to trim the tubes and weld them in place. Hopefully I'll knock both those jobs off tomorrow, and possibly start on my rear cab mount crossmember changes.
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  #148  
Old 06-24-2019, 09:00 PM
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Torchie Torchie is offline
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I know what you mean about these engines.
I still like to look under the hood and recognize what I'm looking at.
I guess I'm a Luddite...

Torchie
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  #149  
Old 06-25-2019, 10:29 AM
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05snopro440 05snopro440 is offline
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Originally Posted by Torchie View Post
I know what you mean about these engines.
I still like to look under the hood and recognize what I'm looking at.
I guess I'm a Luddite...

Torchie
A lot of "car guys" are confused by my 455 Buick, so I wonder how old it needs to be for it to be easily recognizable
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  #150  
Old 06-26-2019, 11:40 AM
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Tacked up the transmission and motor mounts in place. Just have to pull the motor and do the final welding now. I should make up that cab mount crossmember while I can still put the cab back on for final fitment....maybe tomorrow.
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