SPOOL CRANKSHAFTS

ARRIVED - SR20 Billet 4340 Stroker Cranks.
SPOOL - NISSAN SR20DET 91 MM
BILLET 4340 STROKER CRANK
$ 1350.00
The SR20DET engine in its factory form has a 86mm bore and 86mm stroke, giving a displacement of 1998cc.
Using the 91 mm stroker crank, std length conrods and custom pistons, the displacement is increased as follows:
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86.5mm bore and the 91 mm stroker crank = 2139cc / 110cc increase
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87 mm bore and the 91 mm stroker crank = 2164cc / 133cc increase
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90mm bore ( sleeved ) = 2316cc / 318cc increase


