Hi eurodave, I have worked both briggs and kohler V-twins for a friend of mine who races lawn mowers and I am building a turbocharged liquid cooled 1000cc briggs to power a Harley Electra Glide with 6 speed Harley Transmission .2nd Build A 1936 Harley Davidson EL replica (1936 Harley EL=new parts) with powered by 1000cc Air cooled Briggs V-twin with worked heads ,Free flow intake and Higher compression of 10.5:1 (70hp at crank) and 3rd build is Ridley Autoglide who uses Kohler CH750 V-twin from factory. In this build we are installing stroker crank to raise displacement to 1000cc and also adding Tiny IHI turbo.
EURODAVE YOU HAVE DONE A PHENOMINAL JOB TO CREAT A PHENOMINAL BUILD/BIKE. PLEASE...USE FORGED PISTONS AND TITANIUM CONNECTING RODS . I HAVE SEEN ROUGHLY 10 KOHLER/BRIGGS ENGINES HOLE PISTONS AND/OR SNAP RODS IMMEADIATLY AFTER SUPERCHARGING/TURBOCHARGING. ONCE YOU HAVE INSTALLED FORGED PISTONS TITANIUM RODS YOU HAVE A DEPENDABLE, SMOOTH, POWERFULL V-TWIN WITH ..A TON.. OF BOTTOM END GRUNT.
EURODAVE I SENT YOU A PM OF SUPPLIERS OF KOHLER PERFORMANCE PARTS. tAKE CARE jAKE