In Internal combustion Engines, the adequate cooling
plays vital role for proper functioning and enhanced efficiencies. In
the present scenario, the demand for Air cooled Engines with
higher powers is increasing and hence necessity for Augmented
heat transfer through fins. The present work confined to fins
mounted on the cylinder block.In the present work, Internal
Combustion Engine test rig is used, which consist of 4S, single
cylinder, vertical, air cooled, SI Engine with Instrumentation panel,
Throttle control mechanism and Electrical Loading system.The
performance test on IC engine is carried out for three various
configurations of cylinder blocks i.e., 1. Actual cylinder block
2.Cylinder block with triangular profile fins 3. Cylinder block with
perforated triangular profile fins. Performance parameters are
evaluated, plotted and compared & eventually conclusions are
made.