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These blocks are fully liquid cooled, 86 or 87mm offset bore block kits which include 13:1 compression forged pistons, rings, pins, clips, and head gasket. The bores are precision plated with super tough nickel silicon carbide and yields 1464cc (86mm kit) with stock (63mm) stroke. It does not require a crankshaft change when used with the supplied pistons, however when used with a stroker crank, the following size engines can be built:
86mm GSX-R1300 Hayabusa Billet Big Block - Stock crank 1464cc P/N 0007-00001 1534cc with +3 (66mm) stroke 1580cc with +5 (68mm) stroke 1661cc with +7.5(71mm) stroke
87mm GSX-R1300 Hayabusa Billet Big Block - Stock crank 1498cc P/N 0007-00220 1569cc with +3 (66mm) stroke 1617cc with +5 (68mm) stroke 1676cc with +7.5(71mm) stroke
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