400 into 65 valiant

Hey,
It’s been a little while but I’ve been measuring side-to-side offset on a couple of occasions. I keep coming up with a consistent 69 mm (2.7”) difference between left and right which gives an offset of 1 3/8” towards passenger.

I’ve used a laser that shoots a vertical line through an empty block and tranny case “perfectly” centered. That line runs parallel to the chassis 1 3/8” offset when the tranny is on the trans cross member in the original bolt hole.

I’ve measured the offset at several points, right behind the tranny, right in front of the rear wheel well, between the rear frame rails, by the leaf spring holders and btw the leaf springs themselves. It’s consistent. The mounting hole for the trans mount is offset by about twice as much as it should.

I figure the best is if the drive line (my laser line) is parallel to the differential input shaft line. Both horizontally and vertically. So I guess I’ll mount my engine a little further to passenger than normal.

Question: what is a good incline for the engine? I’ve got it at 3 degrees right now and that seems about right to me.

View attachment 1715720334

Having the engine that far to the passenger side may limit room for headers/manifolds on the passenger side. Depending on what you plan on running for exhaust, you may want to check on that before locking everything in.

Is the 3 degrees measured with the car level on stands? How did you determine level? TTI claims the measurement from the center of the crankshaft to the top of the K-member should be 4-3/4". Mine ended up about 5-1/2".