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Going to but put a 360 together.
Rotating parts are stock. Pistons are Keith Black 107 they are about 85 g lighter than the stock pistons. Has been told balancing is not necessary since they are out balancing each other.
Is that correct?

Piston rings are sold as file fit or non file fit.
What do I need for the KB107 ?
What is the difference ?
Will sealed power rings for 36$ do well, or shall I go for perfect circle for 100$ both are with moly. ?

Rocker arm kits are sold as 1.5 or 1.6 ratio
What to use ?

Thanks all




well, file or non file fit I am confused. Do I understand it right ? Is file fit rings to be grinded to ring gab tolerance and non file have the correct tolerance out of the box. ?

Speedpro rings are mentioned is that the cheap ones ?

The dilemma also goes for the main and rod bearings, shall I buy standard or is the more expensive performance bearings needed.