Engine Crossmember

Front: 1970-1973 1200 engine tall crossmember (B110/B120)

Rear: 1974-up 1200 tall/short engine crossmember

Not only does the new-style engine have a lower mount, but the mount is further back about 1.5 inch. These photos shows how far back:

Original B110 engine brackets:
right side (high-mount)

Top: High-type right mount (1970-1973 crossmembers)

Bottom: Low-type right mount (B310?)

Late Engine Mounting

1974 and up engines are different, and 1974-up 1200s use a corresponding crossmember
LH

Low side mount (new crossmembers)
RH

High side mount (similar to earlier)

As you can see these are different from newer (B110, etc) mounts.

The B310 insulators have a metal wrap in case the rubber breaks, the engine won't move too far.

B310 engine mounts have a larger studs and locating pins, plus a safety wrap design, but otherwise are the same dimesion as B110 mounts.

11222-H5001 BRACKET-ENGINE MOUNTING, FRONT RH
- Same as mid-model B120, but larger hole for the insulator stud

"These are the heavy duty engine mounts we were talking about. Broken engine mounts are a common thing in rally cars and this fixes the problem. Mounts are polyurethane and come out of a ford cortina and last for years of competition...Part number MT8156N. Kelpro make them...I usually just go to a good parts place and ask for cortina engine mounts and this is what they give me. Maybe there are two types, these are about 70mm in dia."

http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=34366&forum=1 One guy said: "you might want to look at the poly-urathene style mounts. I am using some of a Jag. The part number is at home. but they are heaps wider but no tallers, so they make a good direct replacement, plus they are high temp rated."

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