Hey I’m thinking of building a 2007cc just wondering can you use the standard size connecting rods or do they need to be changed? ThanksIn that case I’d go along the lines of a 2007cc stroker, 8-8.5:1 compression, twin 40’s, sensible heads which are lightly ported, possibly with 40x35.5 valves and an Engle fk7 cam with 1.4 rockers. That cam will give it plenty grunt straight off idle and cruising but be done by 5000rpm. 26mm oil pump, remote filter and a decent oil cooler fed off a thermostatic sandwich plate. Will be a nice mile muncher.
But, as with all things it depends on budget.