Very cool....diggin the LSA engine.... :cheers:


T,

Thanks Tom. A little update we relieved some pressure on the frame mounts with the engine crane and got to the mounts and loosened them and got enough slack to push the trans over to center it.
I bought a used X Factor cross member a while back and never realized how its made. It's two maybe 3/16" thick pieces sandwiched together on each side of the trans mount platform. Different for sure. Its for a T 56 but it lines up pretty well. It will take some mods to get it to work but it will let me hold the trans up for us to get my drive line angle figured out.

I have a small update but first a question. I also asked in LSX conversions.
If I drop my motor mount point down 1/4"-3/8" will this give me any difference in my tranny mount height or will it just carry the same amount I drop to the mount? How many degrees could I gain either way if dropping the same amount if from the engine mount to the trans mount is 44" ? Or is this a crazy question?

Thanks in advance

Here's the reason why I ask.

This is what I have for space under the oil pan to my frame. about 5/8" I'm close to 3.5 - 4 degrees down now.

http://i172.photobucket.com/albums/w...pszqfc6u5e.jpg

http://i172.photobucket.com/albums/w...pssfxswdwq.jpg

Here is what I have between my G Force cross member and the transmission mount. (That's a 2x4 on the flat) I could also use more room to keep the 4l85 lower in the tunnel. I need room for a connection on the drivers side.

http://i172.photobucket.com/albums/w...psc18ema5i.jpg

Spaceman and I fit the passenger header in and it fits with nothing hitting but some are close. collector to the floor is about 3/8" and to the idler arm is a c hair.

http://i172.photobucket.com/albums/w...psqyoqudry.jpg

02 sensor is a no go for sure it will have to be moved to the outside of the collector.

http://i172.photobucket.com/albums/w...psqpgycwqt.jpg

The frame mount it almost touching the header tube it will be trimmed.

http://i172.photobucket.com/albums/w...pssw8yf3l4.jpg

Wayne,

Because you have an 4 deg down angle, lowering the front will lower the rear of trans slightly more. 1/4' lower in front should lower back of trans close to 3/8".

If their was no angle, it would be the same, because it would be on a parallel plane.

Thanks Jay. I figured the drop would get larger the further away from the lowering point because of the pitch but couldn't get my mind to figure it out.

Worked in the garage again yesterday. We lifted the motor to get the drivers side header in and put the metal spacer under the trans mount for the test. I got 3.80 degrees down the way it is. The best guess on the frame for level is .40 degrees down so 3.40 for the final angle. The rear needs to be worked on we changed shocks and didn't set ride height.

Both of the ARH headers are in and there is a ton of room on the drivers side, at least an inch away from any tube to the steering box. The collector is within 3/8" of the drivers side floor. The passenger side has plenty of room accept the idler arm was touching at full right lock. I adjusted the stop on the A arm and it's taken care of. The passenger side frame mount needs the upper rear corner trimmed, we will remove 1/2" diagonally. The headers look to have enough room to go back an inch without a problem which would probably take care of the frame mount and idler touching, but make the collector closer to the floor. with the 4l80 it would make the trans even tighter in the tunnel. Moving it forward the idler would prevent it. One thing is the 02 sensors won't fit where they have the bungs on the inside towards the trans on the 4l80 which has a very wide pan on it, but with the narrower T56 should fit. ?

I used a G Force 4l80 cross member and the trans mount needed a spacer. Spaceman made it from 1" square tubing. The only thing is, the cross member is the lowest piece under the car. I can see it being a problem when we hit the road. (figuratively I hope. ).

Here are a few pictures from underneath the car. The headers are even or maybe a little above the bottom of the sub frame.

http://i172.photobucket.com/albums/w...psvpndbr9h.jpg

http://i172.photobucket.com/albums/w...psdraouknw.jpg

http://i172.photobucket.com/albums/w...ps0jqsx5be.jpg

http://i172.photobucket.com/albums/w...psx1n3plkn.jpg

From above near steering box.

This is deceiving there is 1" from every tube.
http://i172.photobucket.com/albums/w...pspw1vaaaa.jpg

http://i172.photobucket.com/albums/w...psjsr80033.jpg

http://i172.photobucket.com/albums/w...pslg4qkcr1.jpg

This swap has
S&P swap plates to keep the bellhousing mount surface in the same place
American Racing Headers 1-7/8" 3" collectors. Very well made.
Energy suspension motor mounts to fit the 69, 350 SBC frame mounts.
An AuotKraft oil pan kit.
A G Force 4l80 cross member. Super Beefy.

looking good!
 

Quick question. Is this swap being problematic? If so, why would it be any different than a standard LSx swap? I thought these swaps have been figured out by now?

Hi Tony, Mostly they have been, but I had a set of headers I wanted to use ARH so I called them and they told me they used the S&P swap plates. I got the ones that put the block in the same place as the SBC. I got a 4l85 and motor in a connect and cruise kit from GM. The T56 and 4l60s fit in the tunnel better than this trans does (Especially since I had the tunnel raised)mostly because the 4l85 is so wide at the pan. If it was narrower I could stuff it into the tunnel and have a better drive angle. I don't really want to clearance the floor too much since its all finish painted.( My fault!) Right now the connection to the controller is right against the floor and I still need to connect the cable to it. It will be persuaded to make room.

I see. Thanks for the explanation. I figured there was something you were tiring to do that wasn't the norm. Nice to see it at this point of the build!

Thanks Tony, trying to get the cable operated hood figured, we made a couple of plate that Spaceman welded up for me.

http://i172.photobucket.com/albums/w...psqmlyamwr.jpg

This is a first test fit for the bottom.

http://i172.photobucket.com/albums/w...pskzecy3da.jpg