What headers? Did you trim the K frame for pan clearance (future removal). Is the steering box mount trimmed? Do you know what height the motor should be? These are all questions that need to be answered before the install. Personally I start with a bare block, heads, headers, and pan at the beginning of the build. Then radiator, fan, and accessories. Then the motor WILL fit when you install it.
Doug

It could be that the motor is sitting too low and your plate has been trimmed wrongly. Have you checked sit height?

Big block's in A bodys are not for the weak at heart, long nights , bloody knuckles and excessive use of foul language are normal, that said, I used Andy's motor plate and also removed the stock K frame and used a QA-1 tubular frame after cutting off the QA-1 motor mounts,, it fit,,it's close and the only problem I had was the routing of the external oil line (had to move it some) and I am using the same billit Milodon pump as you, the fitting came within 1/16 of the steering mount so I had to move it fully to the right to give it that much, it's in and running and my knuckles have healed,

Maddog lo deck headers. K is trimmed. most of the motor mount/steering box mount is trimmed. measures are posted above and I will measure once the engine is back in. hoping 3 times a charm.

Oil filter in stock location can be a problem.My old filters that I took off in favor of a different system.

On my 67 barracuda I used andy's front engine plate, cut the K member a little bigger than the pictures shown above, still should have cut it bigger as the pan bolts are tight to get at. Headers are the major item you need to be concerned with. Moving the engine back or off to the side will create big problems unless your going to build you own or do modifications. As Andy stated,the engine plate sets the engine at the proper height, trans mount sets front to back. Push it back the headers will hit the fire wall, change engine to center the headers will hit the torsion bars and frame. Unless you have a lot of money and a lot of hair to pull out , make it simple . Mark it with a chalk, cut it with a torch, check fit and weld it up.

Ok. So stock location best. Still have to massage the k a bit.

No it doesn't. That can be made adjustable as well. Up down and back and forth. Rethink it, and you will agree.

when the motor plate is set on the frame rails, does this give enough under hood clearance for dominator and drop base air cleaner using a 6 pack hood? 400 block.

You can also shim the k-member away from the body like they did with the 68' Hemi SS Darts.

It may give you the clearance.

Thats another option. Where can i find more info on that?

Shim the K. Never thought of that one. Good idea. History has a way of repeating itself indeed.

Just make sure that you get it square in the body, tail shaft should be offset same amount as the crankshaft between the framerales. Two to four degrees up or higher in front.

When you drop the hammer on that BB you won't want to trade down again.
Mick

No info needed. 1/2 spacer longer bolts and install. You have to do a fea on it if you do that because it changes big time. The only reason the hemi cars were spaced down was that the motor was attached to the k member and they lowered it for hood clearance. I have done several b motors in a body and only had to trim off the left mount and trim gear box mount and re weld to make them fit.

can't wait til the work is over and the fun begins.
Spacing will be one of my last options and that is another great idea. thanks guys

I was installing my Milodon pump today and it looks like you can cut off about 1/2" off the bottom without getting anywhere near the oil filter to help make room.I have a HV melling and the filter bracket is 1" below the oil pan rail on the block.

Do you mean mill the bottom flat? I will keep that in mind.

Yes
ps I know this sounds crude but you can just mark it and cut with a hacksaw and use a file to smooth it.

I have the schumacher conversion mounts as well. Think ill bolt the pass side mount on to locate engine where it needs to go. Gonna trim up the dr side mount some more and massage the K member a bit. Should go.