APE's stage one engine kit for the 1999 - 07 Suzuki Hayabusa raises displacement to 1441cc.

Kit includes new 84 mm forged pistons, bored and replated exchange cylinder block ( customer core required), new + 2mm crankshaft, spacer plate, Web 395 cams (customer cores required) with APE adjustable sprockets installed, APE stage 2 valve springs . APE titanium valve spring retainers allow the use of the high lift cams without modifying the valve guides.
Not shown, cylinder studs and heavy duty head nuts, head gasket

#SSR1441-1  $3310.18

Options include; 
Billet cams outright (no core).
Lightening crankshaft and removing counterbalancer gear
Fully ported cylinder head packages.

#SSR1441-2  $4410.18

Includes fully ported head + seals (core required) and 415 cams.