Inlet manifold adaptor kit, 2 bolt cylinder head for efi conversion. Porsche 911 1974 to 1989

Fits:
Porsche 911 / 911S 2.7ltr - 1974 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989

These adapters are used to modify the 2.7ltr / 3.0ltr / 3.2ltr Porsche 911 2 bolt cylinder head engines to the later 964 / 993 3.6ltr intake manifolds when converting to EFI.  

CNC machined on a 5 axis machine to our exacting tolerances and finish and anodised dark grey these are custom machined to match your port diameter and tapered to fit up to the 42mm inlet manifold port size.

The short adapor height maintains the overall height of the intake set, reducing the interference between the idle air control, the intake boot and the top of the engine bay insulation.  The factory plastic 3 bolt 964 stacks are too tall, and adding an adapter spacer would make the manifolds not fit at all.

This design permits the use of the standard 964 fuel injectors and fuel rails so positions the injector over the same relief in the intake port for the original CIS injector, ensuring proper atomisation of the injector spray into the intake port.

Key Features:
Precision machined from high grade aluminium
Anodized finish
Fits all Bosch 14mm O-ring fuel injectors
Fuel rail spacers are marked for easy cutting to suit long, medium or short injector types.

Kit Includes:
6 x CNC aluminium adapters
4 x Spacer/Posts for fuel rail 
4 x Bolts to suit standard full length Bosch injectors
12 x Nuts and washers 

Fuel rails not included in kit

34mm / 40mm / 41mm / 42mm adaptors are made to order. Please allow 4-5 weeks for delivery

Check out our fuel rail and fuel pressure regulator kits to make the perfect conversion set