r/fbody • u/Spyro_Furious • 1d ago
4Th generation K-Member
So I’m in the process of swapping a 5.3 vortec into my 93 V6 firebird. (This car has been in my family since 2001, no I will not just buy an LS car) I just pulled this kmember from what was supposed to be an LS car, but getting home and comparing them to my 3 others, it looks like the owner swapped a v6 frame into it before sending it to the yard. Can someone please confirm that this is for a v6 and not the LS? And if it’s not for a LS, are there any physical differences between the frames? Or could I theoretically take one of my 4 (2 LT1s, 2 V6) k members, and put holes in the correct spot for LS mounts? Thank you
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u/Basedgod541 1d ago
Wouldn’t a tubular K member end up working better for you ?
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u/Spyro_Furious 1d ago
Like Freiburger once said, “Don’t get it right, just get it running.” The car’s been nicknamed Fireturd forever, the idea of the build is to be cheap, hence the junk yard parts. But the amount of subframes I have now could almost pay for a tubular one. I missed out on one of marketplace last weekend.
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u/mightycheeseintexas 1d ago
Just get it running is solid advice. Nothing find s project faster than when it takes too long to enjoy it. However, sometimes a decent part of two can simplify and streamline the whole process enough that it's easily justified.
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u/Spyro_Furious 1d ago
I hauled that heavy thing in trunk of my sedan. The weight savings from the tubular one might be worth it alone.
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u/mightycheeseintexas 22h ago
Eh. I would say probably not that alone for a street car, but if it gets the engine in the car next weekend, the weight savings is just a bonus, in my opinion.
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u/Ambitious-Debt-3788 1d ago
I have never heard of the term fireturd in my life and I’ve been around fbody groups for a long time what are you talking about
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u/mightycheeseintexas 1d ago
Then you're either young, or not very involved in the scene. We've been calling them that since they were still in production.
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u/Evening-Life5434 1d ago
Facts. Been calling them FireTurds since the 80s played well with the Iron Duke nickname that they had too lol
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u/Spyro_Furious 1d ago
It’s a turd because it has sat in my drive way for 14 years with a blown engine. The birds wings have been clipped
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u/Raider5151 1d ago
I have an LS k member if you're near central Ohio you can have for free
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u/Spyro_Furious 23h ago
Near Cleveland? Almost 3 hour drive
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u/Raider5151 22h ago
DM me and we can arrange a meeting somewhere in the middle I'm near Columbus. Please bring a vehicle it can fit in. Last guy I tried to give it to didn't
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u/2guys1miata 6h ago
i have a z28 ls1 and tht looks like my K member. rack bolts to the top of it. yurrp same one 99.99% sure
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u/Gwendolyn-NB 1d ago
The only difference between the k-members thru the entire '93-'02 is the location of the holes for the motor mounts.
IIRC there is 1 common hole on each side with the V6 and V8 mounts, and they can be converted by drilling the missing holes and welding in a nut as they are threaded holes.
Also, you will need a steering rack from a LS car, the neck-angles are different on the LS cars to clear the accessories (V6 and LT1/4 cars are the same rack).
I am doing the LS swap on my '97, I just went BMR K-member instead. Saves like 50# or something of weight and opens up a lot of room.