BBC into LS truck
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I need a gauge for that
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From: Huntsville, AL
BBC into LS truck I realize this section is for ls engines to fit in non-ls vehicle, but there is not a section for a non-ls engines to go into an ls vehicles, so...
Has anyone swapped a BBC into an original ls vehicle? Even better would be a truck. I dont mean the 8.1 either since that has both sets of mounting holes I believe, I mean the older bbcs, pre-ls.
Everyone seems to offer an adapter to put an ls in an originally equipped bbc or sbc vehicle but not the other way around. The only thing im worried about at this point is fitting it in there. The exhaust will be all custom and no ac, so im not worried about that.
Ill admit im a noob on bbc and have a lot of reseach to do, but thats part of the fun.
Before anyone says, "why not just use a 408 if you want big cubes?". Because I have a 402 currently with an 82mm turbo (somewhere north of 1k rwhp), and when it goes I want to build something really cool. A twin turbo 600ci bbc sounds fun. Not just for the power, but the challenge and cool factor as well.
Thanks
Has anyone swapped a BBC into an original ls vehicle? Even better would be a truck. I dont mean the 8.1 either since that has both sets of mounting holes I believe, I mean the older bbcs, pre-ls.
Everyone seems to offer an adapter to put an ls in an originally equipped bbc or sbc vehicle but not the other way around. The only thing im worried about at this point is fitting it in there. The exhaust will be all custom and no ac, so im not worried about that.
Ill admit im a noob on bbc and have a lot of reseach to do, but thats part of the fun.
Before anyone says, "why not just use a 408 if you want big cubes?". Because I have a 402 currently with an 82mm turbo (somewhere north of 1k rwhp), and when it goes I want to build something really cool. A twin turbo 600ci bbc sounds fun. Not just for the power, but the challenge and cool factor as well.
Thanks
Last edited by Atomic; Jan 16, 2013 at 09:36 PM.
Thread Starter
I need a gauge for that
iTrader: (37)
Joined: Jan 2006
Posts: 10,921
Likes: 3
From: Huntsville, AL
Would like to stick with EFI, 80e (maybe, if it will hold...), and actually the stock 411 type pcm. Of course this is after confirming someone makes brackets to actually get it in there.
Are the mounts the deal breaker? Do you have the ability to fab them up? I would look at the motor mounts they used for the 8100 in the 2000-ish trucks as I don't believe the mount holes are different between Mark IV, Gen V, Gen VI, and Gen VII. But then again the 8100 is kind of an oddball so it wouldn't surprise me if they were different. Now running the 0411 with a Mark IV will be the tricky part, if you were to use a Gen VI block you could run the L21s 24x electronics and use the 0411. What block are you running on that 402?
Thread Starter
I need a gauge for that
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From: Huntsville, AL
Mounts are not a deal breaker, and I could make some if I have to, but it sure would save me a lot of trouble if someone already makes some. Transdept makes some for the other way (ls into bbc vehicle), but like I said, finding mounts for the other direction isnt so easy. I talked to a guy that put an 8.1 in an ls truck and he said the 8.1 had the bbc and ls mounts.
I dont really want to use the 8.1 because the availability of parts for the older "real" bbc's seem much more common (ie, more options).
My thinking is find some mounts that work, then see what my options are with that block in terms of efi. I would like to use the 0411, but if I have to go aftermarket it wouldnt be the end of the world (the holley efi system looks pretty sweet). I realize this may be backwards, but like I said, im a BBC noob and bought a couple books this morning on amazon to try and educate myself on block and rotating assembly combinations.
I figure if I can get a 24x reluctor wheel, crank sensor, and cam sensor on any block I should be able to make the 0411 work since those are the important things. I realize there is a lot more that would need to be done, but this is a good starting point.
Im using an iron lq4 block in my 402, shortblock built by LME.
I dont really want to use the 8.1 because the availability of parts for the older "real" bbc's seem much more common (ie, more options).
My thinking is find some mounts that work, then see what my options are with that block in terms of efi. I would like to use the 0411, but if I have to go aftermarket it wouldnt be the end of the world (the holley efi system looks pretty sweet). I realize this may be backwards, but like I said, im a BBC noob and bought a couple books this morning on amazon to try and educate myself on block and rotating assembly combinations.
I figure if I can get a 24x reluctor wheel, crank sensor, and cam sensor on any block I should be able to make the 0411 work since those are the important things. I realize there is a lot more that would need to be done, but this is a good starting point.
Im using an iron lq4 block in my 402, shortblock built by LME.
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Thread Starter
I need a gauge for that
iTrader: (37)
Joined: Jan 2006
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From: Huntsville, AL
Hmm, thats a good idea actually, but is definitely a lot more work than a simple motor mount adaption. But obviously at some point with the kind of power under consideration here the factory style motor mounts just wont cut it.
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Verdad Gallardo I would think the mounts would be the easiest part. Crank sensor/reluctor might be doable, but cam sensor/reluctor seems like a pain if you're considering an early BBC.
An aftermarket tbi would be much easier but then you would need a stand alone trans controler.
You might check into the later marine 502 efi motors (Mercruiser). Not sure how easily they would be to get working with the 411 though.
Check this
http://www.pacificp.com/forum/viewto...&highlight=l21
http://www.pacificp.com/forum/viewto...er=asc&start=0
An aftermarket tbi would be much easier but then you would need a stand alone trans controler.
You might check into the later marine 502 efi motors (Mercruiser). Not sure how easily they would be to get working with the 411 though.
Check this
http://www.pacificp.com/forum/viewto...&highlight=l21
http://www.pacificp.com/forum/viewto...er=asc&start=0
Last edited by garys 68; Jan 17, 2013 at 06:38 AM.
My thinking is find some mounts that work, then see what my options are with that block in terms of efi. I would like to use the 0411, but if I have to go aftermarket it wouldnt be the end of the world (the holley efi system looks pretty sweet). I realize this may be backwards, but like I said, im a BBC noob and bought a couple books this morning on amazon to try and educate myself on block and rotating assembly combinations.
I was under the impression you had a 402 BBC with about 1000 rwhp and were looking to stuff it in the truck. What kind of power do you want from the BBC project? You can eclipse that 1000 rwhp number you have now with an N/A BBC if you'd really like to.
Last edited by 93Z2871805; Jan 17, 2013 at 08:28 PM.
Thread Starter
I need a gauge for that
iTrader: (37)
Joined: Jan 2006
Posts: 10,921
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From: Huntsville, AL
Well, I had my mind made up for something around 600ci. Whats the point of a big block if its not going to be big, right? 
With that in mind, the largest ive seen most go with the genvi 454 block is around 496, which isnt going to cut it. For big cubes its looking like I want an aftermarket block, and the dart big m tall deck looks like a perfect candidate for what I want, but im not sure what provisions that block has for crank and cam sensors since I want EFI.
As far as power goals for the project...im not really sure, and to be honest thats not really my main thrust for this project. I havent heard of anyone doing this type of swap and it sounds fun! For the displacement and any decent size turbo(s), I dont think the 2k hp is out of range. I would build the engine to support that power level, even though I am well aware that its basically useless except for a dyno queen. I realize an NA BBC of this size could do that without much trouble, but thats not what I want from this.
The setup now is an lq4-based 402, and dont get me wrong it makes a ton of power, but I am thinking ahead to other fun projects. Everything gets boring after a while, even 1k hp
So I guess the biggest question is how hard is that dart big m block to make work with efi, or does it already have provision for that? I read some discussion of a 598 rotating assembly that would work well in that block I think...
Thanks for the input
With that in mind, the largest ive seen most go with the genvi 454 block is around 496, which isnt going to cut it. For big cubes its looking like I want an aftermarket block, and the dart big m tall deck looks like a perfect candidate for what I want, but im not sure what provisions that block has for crank and cam sensors since I want EFI.
As far as power goals for the project...im not really sure, and to be honest thats not really my main thrust for this project. I havent heard of anyone doing this type of swap and it sounds fun! For the displacement and any decent size turbo(s), I dont think the 2k hp is out of range. I would build the engine to support that power level, even though I am well aware that its basically useless except for a dyno queen. I realize an NA BBC of this size could do that without much trouble, but thats not what I want from this.
The setup now is an lq4-based 402, and dont get me wrong it makes a ton of power, but I am thinking ahead to other fun projects. Everything gets boring after a while, even 1k hp
So I guess the biggest question is how hard is that dart big m block to make work with efi, or does it already have provision for that? I read some discussion of a 598 rotating assembly that would work well in that block I think...
Thanks for the input
Well, I had my mind made up for something around 600ci. Whats the point of a big block if its not going to be big, right?
With that in mind, the largest ive seen most go with the genvi 454 block is around 496, which isnt going to cut it. For big cubes its looking like I want an aftermarket block, and the dart big m tall deck looks like a perfect candidate for what I want, but im not sure what provisions that block has for crank and cam sensors since I want EFI.
As far as power goals for the project...im not really sure, and to be honest thats not really my main thrust for this project. I havent heard of anyone doing this type of swap and it sounds fun! For the displacement and any decent size turbo(s), I dont think the 2k hp is out of range. I would build the engine to support that power level, even though I am well aware that its basically useless except for a dyno queen. I realize an NA BBC of this size could do that without much trouble, but thats not what I want from this.
The setup now is an lq4-based 402, and dont get me wrong it makes a ton of power, but I am thinking ahead to other fun projects. Everything gets boring after a while, even 1k hp
So I guess the biggest question is how hard is that dart big m block to make work with efi, or does it already have provision for that? I read some discussion of a 598 rotating assembly that would work well in that block I think...
Thanks for the input
With that in mind, the largest ive seen most go with the genvi 454 block is around 496, which isnt going to cut it. For big cubes its looking like I want an aftermarket block, and the dart big m tall deck looks like a perfect candidate for what I want, but im not sure what provisions that block has for crank and cam sensors since I want EFI.
As far as power goals for the project...im not really sure, and to be honest thats not really my main thrust for this project. I havent heard of anyone doing this type of swap and it sounds fun! For the displacement and any decent size turbo(s), I dont think the 2k hp is out of range. I would build the engine to support that power level, even though I am well aware that its basically useless except for a dyno queen. I realize an NA BBC of this size could do that without much trouble, but thats not what I want from this.
The setup now is an lq4-based 402, and dont get me wrong it makes a ton of power, but I am thinking ahead to other fun projects. Everything gets boring after a while, even 1k hp
So I guess the biggest question is how hard is that dart big m block to make work with efi, or does it already have provision for that? I read some discussion of a 598 rotating assembly that would work well in that block I think...
Thanks for the input
