3.3 short sroke
 

I am planning to build a 3.3 short stroke using;

964 cyl on a 3.0 block and a 3.0 crank

i am looking for somebody who makes spacers between the 964 cylinder and 3.0 block as well as drill the 964 cyl so it fits on the narrow spacing 3.0 block.


Also i realized that i have to modify the 3.0 cooling tins so they can be used on the bigger 964 cylinders

We've done this machining and build many times and may still have base shims. It's cost effective but not the most sophisticated solution for a 100mm conversion.

Me too!
 

But, I am using LN slip fit 100mm cylinders and Mahle 10.1:1 pistons. Also have a very nice set of ported Carrera twin plug heads and the Electromotive direct fire ignition kit. Cams are of the 964 variety. Intake chores to be handled by a large port CIS system and exhaust by SSIs. Looking for a nice street engine with a fat torque curve!

You mean as for fuel it will be CIS? Come on, this nice engine deserves much better than CIS, I would consider MS2 if budget is an issue. MUCH better driveability and fuel economy than CIS, more power too. On top of that, engine looks less crowded.

ms3
 

why not MS3 instead of MS2. I heard sequential injection has not advantages at race rpms

Actually in contrary, at ~3000 rpm upwards there is no difference in sequential injection vs batch. Sequential injection makes biggest difference in idle quality/low rpm/load areas.
But I always connect injectors in sequential (=one injector per driver) and the firing is always sequential though not always timed with cam (when cam sunc sensor is not available). This is with VEMS.