Speedy44
Member
Does anyone know how much (if any) difference there is between a LA crossmember and an RB crossmember? Wanting to put an RB in a 318 Dart.
LA/RB Swap
- Thread starter Speedy44
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Professor Fate
Push the button, Max...
No difference.
Slant 6, small block, big block; all the same.
Edit:
When you said "crossmember", I assumed you were talking about the transmission crossmember.
Then it occurred to me that you may mean the front "K" frame. Those are all engine-specific, and there can also be differences between years regarding idler arm mounts and motor mount styles. But there are aftermarket conversion mounts available to put a big block on a small block or slant 6 K frame.
Slant 6, small block, big block; all the same.
Edit:
When you said "crossmember", I assumed you were talking about the transmission crossmember.
Then it occurred to me that you may mean the front "K" frame. Those are all engine-specific, and there can also be differences between years regarding idler arm mounts and motor mount styles. But there are aftermarket conversion mounts available to put a big block on a small block or slant 6 K frame.
Last edited:
Speedy44
Member
yes, k-frame is what i meant. is there anywhere to get a dimensional chart with possibly the mounting surface dimensioned, like between them or such?
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What year Dart do you have?
Speedy44
Member
68, 318, but it came with another k-frame, lower and upper control arms, and i do not know how to tell what they are off of AND what they'll fit. Where would part #s be on these things?
Years ago when I didn't know any better, I put big blocks in place of small blocks with out any special parts. I remember having to notch the left side mount pedestal for the oil pump clearance and turning the rubber pad mount some to align up. No big deal. A , B & E body, didn't matter.
Speedy44
Member
Ok, i'll check it out in the shop floor with dummy parts to make sure.
Post a photo of the k frame in question.
The serious k frames are visually different and identifiabl
Now we won't get a photo.. booooo
Seen 1 K frame you've seen em all !!!Now we won't get a photo.. booooo
K frame ****!
Some lean to one side
Some are on the smaller side
Some are really big.
Others have a bolt that goes through a hole in a bushing
And some are flat
Some lean to one side
Some are on the smaller side
Some are really big.
Others have a bolt that goes through a hole in a bushing
And some are flat
Don't like the flat ones. I like em more on the small curvy side
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