888 Posted 15March, 2016 Report Share Posted 15March, 2016 Hi I'd like to know has anybody put 100 mm barrels & pistons on a 3.3 930 1991 motor, I believe you have to machine the crankcase because of smaller diameter 3.3 barrels plus you need to machine the heads to 100 mm otherwise piston will hit the 97mm original bore.Thanks Link to comment Share on other sites More sharing options...
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