Renault Billancourt engine
Different cylinder capacity

engine types
690
662-2 - 680
662-1
839
B1B - 670 - 800 - Ventoux1093
cylinder capacity
0.6 L (603 cc)
0.7 L (747 cc)
0.8 L (760 cc)
0.8 L (782 cc)
0.8 L (845 cc)
bore
49 mm (1.93 in)
54.5 mm (2.15 in)
55 mm (2.17 in)
55.8 mm (2.20 in)
58 mm (2.28 in)
stroke
80 mm (3.15 in)
80 mm (3.15 in)
80 mm (3.15 in)
80 mm (3.15 in)
80 mm (3.15 in)

Question: What were the key engine specifications of the o.8 L engine ?
Answer: The 0.8 L (782 cc) appeared with an increased bore, from 54.5 to 55.8 mm (2.15 to 2.20 in), always with an unchanged stroke of 80 mm (3.15 in).