Suzuki Engine Specs

1.3 G13BA 1298cc SOHC 8V
Bore x Stroke 74mm x 75.5mm
Compression Ratio 9.5:1
Cylinder Block Deck Height 186.8mm
Deck Clearance 0.2mm (above)
Cylinder Head Volume 32.2cc
Head Gasket Thickness (compressed) 1.2mm
Minimum Combustion Chamber Volume 38.2cc
Intake Valve O.D. 36mm
Exhaust Valve O.D. 30mm
Connecting Rod Length (between centers) 120mm
Piston Comp Height 28.90mm
Piston Clearance & Position (from Crown) 0.200 @ 45.80

1.3 G13A 1324cc SOHC 8V
Bore x Stroke 74mm x 77mm 
Compression Ratio 8.9:1
Cylinder Block Deck Height 186.8mm
Cylinder Head Volume 32.2cc
Head Gasket Thickness (compressed) 1.2mm
Intake Valve O.D. 36mm
Exhaust Valve O.D. 30mm

1.3 G13B 1298cc DOHC 16V
Bore x Stroke 74mm x 75.5mm
Compression Ratio 10.1:1 (11.1:1 in the import cultus gti)
Cylinder Block Deck Height 186.8mm
Cylinder Head Volume ?
Head Gasket Thickness (compressed) 1.2mm
Intake Valve O.D. 29.1mm X 5.5 X 92.3 1R 
Exhaust Valve O.D. 24.9mm

1.6 G16A 1590cc SOHC 8V
Bore x Stroke 75mm x 90mm
Compression Ratio 8.9:1
Cylinder Block Deck Height 213.8mm
Deck Clearance 0.9mm (below)
Cylinder Head Volume 32.2cc
Head Gasket Thickness (compressed) 1.2mm
Minimum Combustion Chamber Volume 50.6cc
Intake Valve O.D. 36.6mm
Exhaust Valve O.D. 32.5mm
Connecting Rod Length (between centers) 139.6mm
Piston Comp Height 28.10mm
Piston Clearance & Position (from Crown) 0.200 @ 48.00

1.6 G16B 1590cc SOHC 16V
Bore x Stroke 75mm x 90mm
Compression Ratio 9.5:1
Cylinder Block Deck Height 213.8mm
Deck Clearance 0.9mm (below)
Cylinder Head Volume 25.5cc
Head Gasket Thickness (compressed) 1.2mm
Minimum Combustion Chamber Volume 46.8cc
Intake Valve O.D. 29.2mm
Exhaust Valve O.D. 25.0mm
Connecting Rod Length (between centers) 139.6mm
Piston Comp Height 28.55mm
Piston Clearance & Position (from Crown) 0.300 @ 53.00

Weights

G16 is around 104KG (230lbs) with everything fitted, water & oil & including the rad.
G13BA 1298cc 85.558kg. The complete engine as you might expect to be lifting it out (with manifolds, carburetor, air cleaner, alternator, clutch, radiator hoses and oil but no starter motor)

diesel conversion as a comparison: A 1.9 VW TDI is around to 180-200KG