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Put the 87 engine in the 83 using the 83's DME, AFS and harness.
Use the 83's alternator and A/C bracket and all.
Change the poly rib pully on the front of the crank to the 83's. You have to remove the V-belt power steering pulley anyway.
Torq the big center bolt on the front of the crank to 150 foot pounds. You will need a flywheel lock or two really big screw drivers like I used.
The temp sender for the dash gauge on the later model engines has two connetions. One will run the gauge in the dash the other is for a warning light. You may have to put a smaller electrical slip on connector on the single wire. A good idea anyway as these corrode.
Use the intake and injectors and fuel rail from the 83.
Use the cast iron exhaust manifold from the 83.
Use the speed and reference sensors bracket and all from the 83.
NOTE: Be sure to remove these first before extracting the engine. Some also take off the oil pressure sending unit as this hangs up too.
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Hugh - So Cal 83 944 Driver Person
NOT a 'real' Porsche -- Its Better!!!!
When was the last time you changed your timing and balance belts and/or cam chain and tensioner?
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Never break more than you fix!
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