4.110" Bore, 3.440" Stroke, 5.875" Rod, Flat Top 10.5:1 (w/58cc)
4.125" Bore, 3.440" Stroke, 5.875" Rod, Flat Top 10.5:1 (w/58cc)
4.195" Bore, 3.574" Stroke, 5.858" Rod, Inv. Dome 9.3:1 (w/58cc)
4.210" Bore, 3.574" Stroke, 5.858" Rod, Inv. Dome 9.3:1 (w/58cc)