To mate up the AE101 bodies to the B series engine, I decided to make a manifold using the stock mounting flange cut from a spare B16A2 intake manifold - B16A2 because the port does not narrow before the injector pocket  and more suited to this job. The difference is only around 1-2mm, but it makes all the difference.

 

A collection of flanges after being media blasted - you can see how excellent the finish is. The top flange is waiting to be trimmed, and the bottom flange is from a D series DOHC engine for no reason other than I blasted it at the same time.

 

The flange has now been machined at an angle, and cleaned.

 

A flange for the AE101 bodies was cut from 12mm aluminium plate, and machined to accept the bodies. I had to mill a few slots to clear the throttle linkages. These were drilled at 51mm to accept the 2" OD tubing I decided to use for the runners.

 

The machined components ready to be test fitted.

 

The components were then test fitted with a spare head to check for clearance against the firewall, and to work out how much room I had spare for a intake horns filter/airbox.

 

The tubes have now been cut to the approximate length and the flange has been drilled & tapped for the throttle bodies. The air horns and filter can now be ordered.

 

The tubes have also been finished with a flap wheel, the whole setup is now ready for welding. The welding will be performed by an engineering shop as I only have access to an 180amp TIG, which is too lightweight for the thick 12mm flange.