GB 002 85.5mm cast aluminium pistons are manufactured by the original VW suppliers; Mahle, KS, Cima or Cofap. For stock replacement. These will not clear any counterweighted crankshaft without skirt clearancing. If using a counterweighted crankshaft use GB 002F or see LA PST016-4. (39.6mm pin height), case 90mm, head 93.8mm. (POTL) RW: 2/2/5. Approximately 7.3:1. SW 28# GB 002F 85.5mm forged aluminium Cima pistons. For stock replacement, or use with our counterweighted and stroker cranks. (39.6mm pin height), case 90mm, head 93.8mm. (POTL) RW: 2/2/5. See Note A. approximately 7.3:1. SW 28# GB 003 88mm Cima/Mahle piston and cylinder set standard 69mm stroke (39.6mm pin height). These are thick wall spigots with cylinder sizes the same as standard 90.5mm, case 94.4mm, head 97mm, 6mm thick crown. Approximately 8.0:1 CR. (POTL) RW: 1.5/1.5/5. See Notes A, B, D, E. SW 30#
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