IPB-Autosport 996 GT3 4 Liter

[IPB-Autosport]

The center piston is attached to the rods first… The outer pistons are inserted into the liners before attachment to the rods. Unfortunately, with non OEM size pistons or wrist pins, the factory tools are useless. This is where the challenge is.



The housing is slid on with the outer two liners already in.



Of course the cylinders are stuffed to prevent the wrist pin clip from falling into the engine as you struggle to attach it.




At least you can use the factory tool to slide the inner sleeve in. Let me reiterate how difficult it was to get these rings in. Extra hands were necessary.




One bank done, on to the next one.





Center sleeve to go…




In frustration, time to do something easy. Chain housings and guides.




Last one to go…



All pistons are in as of 8pm tonight. Thank god.




In the meantime…I had my stock 996 intakes port matched to the 997 cup heads.





996 intake plenum. Note that this will NOT be replaced with the snake oil IPD intake.



And the 997 throttle body just came in today too!



997 throttle body measures in at 84mm.



996 plenum is only 78mm. Back to the machine shop…