Engine spec suggestions, for varying power outputs.
Over the years i have been building these engines i have had many different setups, ranging from almost standard to nearly 200hp.
The following are things that i have found to work or think would work well. But at the end of the day they should be taken as suggestions only, as everybody has differnt ideas/opinions.
Obviously i make the assumption that all the parts you use are of good condition and servicable, otherwise they should be repaired or replaced. Worn or damaged parts should be discarded & have no place in any engine let alone a high output unit. Blocks should be rebored if necessary, cranks reground & gearboxes rebuilt, cutting corners at this stage will only lead to problems in the future.

130 hp Fast Road Motor.

170 hp Weekend Warrior.