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V8 cross-member to I-6 mounts?

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DaemonForce View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote DaemonForce Quote  Post ReplyReply Direct Link To This Post Posted: Jul/18/2017 at 5:49pm
Originally posted by 73hornut 73hornut wrote:

Nobody is swapping I6's into V8 cars, so no demand.

I really wanted to chime in just to challenge this but what car is this going into? If it's the Concord, just get an I6 crossmember from a yard Eagle and quick swap the crossmember with the V8 when you finally get around to swapping in the new V8. I get the point of this. V8s are expensive to build, especially ours. The average BBF in my trucks runs a typical $4K just for the short block assembly. With any mid-block American we're looking at $6K complete from start to finish. Compared to the usual $2K Jeep stroker, the money just isn't there. Ouch
1971 Javelin SST
1970 American 304 2v | 1967 FMX | AM20-3.31
Testing: 2000 Cherokee AW4/A340E/30-40LE
1983 Eagle Limited
1990 Jeep 4.0L | 1982 T-5M | Dana30/35-2.72
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purple72Gremlin View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote purple72Gremlin Quote  Post ReplyReply Direct Link To This Post Posted: Jul/18/2017 at 8:27pm
Originally posted by DaemonForce DaemonForce wrote:

Originally posted by 73hornut 73hornut wrote:

Nobody is swapping I6's into V8 cars, so no demand.

I really wanted to chime in just to challenge this but what car is this going into? If it's the Concord, just get an I6 crossmember from a yard Eagle and quick swap the crossmember with the V8 when you finally get around to swapping in the new V8. I get the point of this. V8s are expensive to build, especially ours. The average BBF in my trucks runs a typical $4K just for the short block assembly. With any mid-block American we're looking at $6K complete from start to finish. Compared to the usual $2K Jeep stroker, the money just isn't there. Ouch
Eagle CMs are different.  Pretty much all V8s are expensive to build. AMC isnt really that much more to build.  the machine work is what gets expensive.
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1982AMCConcord View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 1982AMCConcord Quote  Post ReplyReply Direct Link To This Post Posted: Jul/19/2017 at 8:03am
Originally posted by DaemonForce DaemonForce wrote:

Originally posted by 73hornut 73hornut wrote:

Nobody is swapping I6's into V8 cars, so no demand.

I really wanted to chime in just to challenge this but what car is this going into? If it's the Concord, just get an I6 crossmember from a yard Eagle and quick swap the crossmember with the V8 when you finally get around to swapping in the new V8. I get the point of this. V8s are expensive to build, especially ours. The average BBF in my trucks runs a typical $4K just for the short block assembly. With any mid-block American we're looking at $6K complete from start to finish. Compared to the usual $2K Jeep stroker, the money just isn't there. Ouch

Well dude.. its like you're reading my mind... because that is the entire motivation behind this post I made. I have a lot of the stuff to do the v8 swap.... but my front end has gotten so bad over the recent years... ball joints... steering... bad shocks... sagging coils... etc... I think its questionable to even drive around right now. Unfortunately... the car sat for 10 years before I got back to it and I have been driving it lightly ever since... so it REALLY needs to be done. So while I COULD just do the suspension and get it all squared a way... I am going to take it all the way.

I am taking the engine and trans out. I am getting my body guy to go through the engine bay (rust on inner frame rails next to engine and under battery tray) and refinish/repaint it from the frames rails down. This will not be show car work but driver quality. He'll make it nice and then redo the undercoating as well. During this process he is going to drop the entire front end off the car... so the front end will be down to the sub-structure. 

Over the last two years... I have been accumulating all the parts for the front end redo. I already have like $600 worth of steering/suspension parts and I am about to order about another $700 in brake and steering parts in the coming weeks. I also have all the hard parts... upper/lower control arms.... strut rods and brackets... spring perches... shock towers... and I will have all that assembled, painted and ready for my friend when I drop the car off. So he'll have a table of about 1000 bucks worth of parts at his disposal when he gets it. Then all he'll have to do is take down the old stuff... throw it on the floor... fix the engine bay.... then hang all the new stuff. I don't want him wasting his time refinishing/repainting the old hard parts or installing bushings or all that stuff. I want the stuff to be ready for him and he can move from A to B and C.... and so on. Doing this way... I hope... will make less headaches for him and I can get my car back faster. 

Now mix what I wrote above with the added expense of building a 4-6000 dollar engine and you can see why I asked the question for this post.... if there was a way to use the v8 cross member with the I6 for a few years... without hacking it all up... that would make sense to me considering how deep Iam going into the front end of this car.

Also... Thank you for validating my thought process.... just when I think I am over thinking something.. someone comes along and justifies my thinking... thanks.


Edited by 1982AMCConcord - Jul/19/2017 at 8:08am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 1982AMCConcord Quote  Post ReplyReply Direct Link To This Post Posted: Jul/19/2017 at 8:17am
Originally posted by purple72Gremlin purple72Gremlin wrote:

Originally posted by DaemonForce DaemonForce wrote:

Originally posted by 73hornut 73hornut wrote:

Nobody is swapping I6's into V8 cars, so no demand.

I really wanted to chime in just to challenge this but what car is this going into? If it's the Concord, just get an I6 crossmember from a yard Eagle and quick swap the crossmember with the V8 when you finally get around to swapping in the new V8. I get the point of this. V8s are expensive to build, especially ours. The average BBF in my trucks runs a typical $4K just for the short block assembly. With any mid-block American we're looking at $6K complete from start to finish. Compared to the usual $2K Jeep stroker, the money just isn't there. Ouch
Eagle CMs are different.  Pretty much all V8s are expensive to build. AMC isnt really that much more to build.  the machine work is what gets expensive.

Exactly. I have already gone around and asked a lot of guys about building a good engine for this car. I have ball park numbers from a handful of guys and I think I'll be good when it does happen. I have a complete core 360 (2 barrel carb to pan... flywheel to front end accessories) in my garage I want to use as the foundation. I also have the free flow exhaust manifolds, an Eddy Perf intake and a set of 090 heads too. My goal is to build a stout bottom end and a mild top end... then later on possibly swapping to the Eddy heads and Air Gap intake. I'd like to start off with 9:1 or so compression then jump closer to 10:1 with the aluminum heads later on. At least that is the general goal... to have a builder engine of sorts... something that the bottom end will be good enough to add top end parts to later. I have even been thinking of doing a stroker 360 but I think that is overkill for the 4dr. small car platform. The 360 already has a fantastic TQ curve... I see no REAL reason to enhance it for a small car platform vehicle except for bragging rights... which is cool and all but in this case... talking a lot will cost me even more money for an already expensive engine build! ha...
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