LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Which K member to go with?

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Old Jan 23, 2004 | 10:23 AM
  #16  
TraceZ's Avatar
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From: Madison, Wi
Originally posted by InjectedSS
No who the hell needs a hoist it's all about the jackstands and lightweight aluminum race jacks

Neways I had my motor out when I did my kmember but i've pulled the kmember off many times with the engine still in the car. Pretty simple, all you gotta do is get the car up on some jackstands, then what I did since I have an M6 I just slipped a jack under the bellhousing since its pretty darn sturdy, then I jacked up there and was able to remove the motor mounts and then drop the kmember from there... Not to hard to be honest with ya.
Didn't that put alot of stress on the transmission mount?
Old Jan 23, 2004 | 11:00 AM
  #17  
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So the weight of the motor's weight was supported by the transmission? Wow, I would've just supported the motor, but that's me.

Not sure about install price. Really depends on how experienced the shop is with something like this. The motor mounts will have to be undone, motor supported, a-arms and everything on the front spindle will have to come down, shocks, springs, etc.

It's quite a bit of work if you're just doing the k-member. I did mine when I switched motors.
Old Jan 23, 2004 | 11:31 AM
  #18  
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I've done a little bit of research in regards to the K-Members.
What I've found out is that, the PA K members are more expensive, because of the chromoly material, and i guess it depends on the level of racing you're involved.
I have a BMR k-member to be installed soon. I've heard of "shorty" headers clearance issues. What I've learned is that you have to go with solid motor mounts to raise the engine a bit, to fix this problem.
Hope this helps.
-Goose
Old Jan 23, 2004 | 11:41 AM
  #19  
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Originally posted by zhevy-1
I've done a little bit of research in regards to the K-Members.
What I've found out is that, the PA K members are more expensive, because of the chromoly material, and i guess it depends on the level of racing you're involved.
I have a BMR k-member to be installed soon. I've heard of "shorty" headers clearance issues. What I've learned is that you have to go with solid motor mounts to raise the engine a bit, to fix this problem.
Hope this helps.
-Goose
So in order to make it fit with my shorties I need to get the k member without the mounts and they buy solid motor mounts? This is turning into a big pain in the butt.
Old Jan 23, 2004 | 11:50 AM
  #20  
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Originally posted by slider
So in order to make it fit with my shorties I need to get the k member without the mounts and they buy solid motor mounts? This is turning into a big pain in the butt.
I think you're confused between the k-members motor mount "brackets" and the actual motor "mounts".
Old Jan 23, 2004 | 12:06 PM
  #21  
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Originally posted by zhevy-1
I think you're confused between the k-members motor mount "brackets" and the actual motor "mounts".
Yes, I was. Who sells solid motor mounts for LT1s? I only see poly at Thunder and Summit
Old Jan 23, 2004 | 12:34 PM
  #22  
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fyi, all this was with headers off the car by the way, so if you're doing those too, now is the best time
1. jack car up put on jack stands, do all normal safety stuff!!
2. take front wheels off,
3. take all cotter pins , should be 4 total if i remember right, (probably need new pins when done) out of the castle nuts, take a pickle fork and undo the steering shaft from the knuckle
4. unbolt shock from a-arm, are you doing tubular a-arms as well? might as well if you can afford imo.
5. undo all the clips holding brake lines and ABS wires to the arms, use some wire to tie the spindle with attached brakes out of the way, you want to make sure its tied up and tight and that there is still slack in the brake lines when secured you dont want the lines to be tight and possibly tear and break, then let the lower arm hang
6. you are gonna need some way to support the motor, i used an engine hoist with a chain wrapped all the way around the motor, had a packing blanket around the chain so i didnt tear anything up, worked fine that way for me, i was told you can do it by lifting on the crank pulley, i did not feel comfortable that way, you should also be able to use a a jack and and block of wood (to spread out the wieght) on the oil pan to support it also, be careful doing it that way
7. unbolt the steering rack from the stock k-member (2 bolts) and support it with some wire, the best way that you can, do not let it hang loose! might even be best to tie it 1st then unbolt it so it doesnt really move anywhere...
8. undo the clips holding the metal line (power steering or brake?) that runs along the k-member by the steering rack, i forgot to do that and those little clips held the entire k-member in place undid them and it dropped onto the ground.
9. with the motor securely held in place, take out both motor mount bolts, passenger side is a lil tuffer to get to then the drivers but still not real hard, i found it easiest to get both mount bolts out when the motor was raised up just a hair, relieves some of the weight off them making it easier to pull them thru, you'll see
10. with a jack under the stock member, undo either all 6 or 8 k-member bolts (cant remember off hand) then lower it down and out of the way, slowly so just in case you forgot to undo something
if you are doing lower a-arms as well you need to assemble the a-arms and k-frame while its outside of the vehicle, because it needs to all go in at once, i dont know about putting the stock arms back on the tubular k-frame, it will work but i didnt do it so i cant help ya there

someone jump in here with the small things i forgot to tell him, i know there is some stuff, its been a year since i did mine.

it probably would've taken me 5-6 hrs. to do it but it ended up taking 2 months, waiting on parts and ordering extra stuff, figured while i had that much room to do things underneath might as well go for it!

hope that helps some, its really self explanitory once you get under there and start really looking at things! just take your time putting it back together as not forget stuff and go over it again and again and again

Steve

EDIT: lol damn thats a big reply, but thats how i did mine
Old Jan 23, 2004 | 01:35 PM
  #23  
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Originally posted by slider
Yes, I was. Who sells solid motor mounts for LT1s? I only see poly at Thunder and Summit
My bad. I meant to say poly mounts. Yes, the ones from Thunder Racing will work fine.
Old Jan 23, 2004 | 01:55 PM
  #24  
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Originally posted by simple
fyi, all this was with headers off the car by the way, so if you're doing those too, now is the best time
1. jack car up put on jack stands, do all normal safety stuff!!
2. take front wheels off,
3. take all cotter pins , should be 4 total if i remember right, (probably need new pins when done) out of the castle nuts, take a pickle fork and undo the steering shaft from the knuckle
4. unbolt shock from a-arm, are you doing tubular a-arms as well? might as well if you can afford imo.
5. undo all the clips holding brake lines and ABS wires to the arms, use some wire to tie the spindle with attached brakes out of the way, you want to make sure its tied up and tight and that there is still slack in the brake lines when secured you dont want the lines to be tight and possibly tear and break, then let the lower arm hang
6. you are gonna need some way to support the motor, i used an engine hoist with a chain wrapped all the way around the motor, had a packing blanket around the chain so i didnt tear anything up, worked fine that way for me, i was told you can do it by lifting on the crank pulley, i did not feel comfortable that way, you should also be able to use a a jack and and block of wood (to spread out the wieght) on the oil pan to support it also, be careful doing it that way
7. unbolt the steering rack from the stock k-member (2 bolts) and support it with some wire, the best way that you can, do not let it hang loose! might even be best to tie it 1st then unbolt it so it doesnt really move anywhere...
8. undo the clips holding the metal line (power steering or brake?) that runs along the k-member by the steering rack, i forgot to do that and those little clips held the entire k-member in place undid them and it dropped onto the ground.
9. with the motor securely held in place, take out both motor mount bolts, passenger side is a lil tuffer to get to then the drivers but still not real hard, i found it easiest to get both mount bolts out when the motor was raised up just a hair, relieves some of the weight off them making it easier to pull them thru, you'll see
10. with a jack under the stock member, undo either all 6 or 8 k-member bolts (cant remember off hand) then lower it down and out of the way, slowly so just in case you forgot to undo something
if you are doing lower a-arms as well you need to assemble the a-arms and k-frame while its outside of the vehicle, because it needs to all go in at once, i dont know about putting the stock arms back on the tubular k-frame, it will work but i didnt do it so i cant help ya there

someone jump in here with the small things i forgot to tell him, i know there is some stuff, its been a year since i did mine.

it probably would've taken me 5-6 hrs. to do it but it ended up taking 2 months, waiting on parts and ordering extra stuff, figured while i had that much room to do things underneath might as well go for it!

hope that helps some, its really self explanitory once you get under there and start really looking at things! just take your time putting it back together as not forget stuff and go over it again and again and again

Steve

EDIT: lol damn thats a big reply, but thats how i did mine
Thanks for the steps, but I will be having it done while the car is in for some other mods. Anyone here pay to have a k member installed? If so, how much was it?
Old Jan 23, 2004 | 09:45 PM
  #25  
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From: Vancouver, BC, Canada
The BMR clears my MAC headers just fine... incase anyone is worried about that.
Old Jan 23, 2004 | 10:06 PM
  #26  
'93 formy ...'s Avatar
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I purchased the BMR kmember w. upper+lower A arms as a package, about 3 weeks ago. I won't get the chance to install them till spring time so I couldn't tell you how well they fit/work. What I can say is that the quality of the Kmember (welds, paint, etc.) is all top notch. The complete package (a arms included) will shave off something like 47lbs off the front end.

You can check out some picture I took of them on my website. Just click the link on my signature. I thinks the pics. are on page 3.
Old Feb 2, 2004 | 01:15 PM
  #27  
Tony Danza's Avatar
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From: Turnersville/Washington Twp. NJ
Originally posted by Jason Dove
The BMR clears my MAC headers just fine... incase anyone is worried about that.
has anyone had any problems with BMR's clearence with Jet-hot lt's?
Old Feb 2, 2004 | 01:59 PM
  #28  
InjectedSS's Avatar
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Originally posted by Fastbird93
Wow, don't you think that would be putting a lot of stress on that bellhousing and the connection right there?? I mean, amen to ingenuity and all, but that seems kind of risky. Now watch me go and do the same thing!!
Nahh gotta think, the bellhousing is attached to the engine by all the bolts on the transmission etc

Originally posted by IDOXLR8
How long did it take you to remove the stock k-member and put the new one in? Thanks
Well I did my full removal and install with the engine out so I couldn't say. But if I were to do it with the engine in it still wouldn't take long. Like I said, just support the engine, then remove the kmember bolts, remove the rack & pinion, then loosen the strut bolts, pop the lower ball joints off, move misc things out of the way and out it comes
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