Quote:
Originally Posted by DOGSTAR
I am taking my engine out over winter.
I am going to give it an overhaul, but whilst it is out i wish to enhance the perfomance.
Any thoughts advice on polishing heads, cams flywheels pistons painting the block please most welcome.
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Get hardened exhaust seats if not done and new shells for the crank and con rods, a light smooth out of the intake and a good 3 angle valve and seat grind, don’t polish the intake port you want it smooth as in no abrupt changes or bumps and lumps but the surface should be a sanded finish not mirror like to prevent fuel dropping out of suspension and pooling in the port bottom
If you can’t get the crank balanced at least balance the pistons and con rods
Aim is to get every piston within one gram, every small end and big end within 1 gram
It won’t be a lot more powerful but a good smooth engine, a cam will give more power but it’s a trade off be sure what you want from the engine before selecting, large lifts put a lot of strain on the valve train and big overlap causes a lumpy idle, if your going for more overlap you need a good exhaust manifold to make full use of the overlap