well let me tell you something, if you have ever had a older chevy with a 350 and a carb with out a choke you understand the importance of warm up.

whats is important about warm up is simply the expansion of the pistons and cylender walls. pistons are thiner and warm up much faster than the block does. so they expand rapidly and if put under heavy load( ie driving normal) the clearence between the rings and cylinder gets pretty small pretty fast. Now it wont be as drastic as say piston expands enough to sieze( unless of course you are the type that turns the key and holds the pedel to the floor until you get to were you are going, i have seen that before and he sent all but three push rods through the valve covers on a 460). so if you have good oil pressure and drive like an old fart the motor will run for quite a few years, that and if you drive like an old fart you prolly let it warm up any way so...

Other than that a cold engine is going to knock harded than a warm one. Also if you ever take an engine apart i promise you the #1 cylinder will have a wave in the cylinder were the water pump outlet is. that is the coldest part of the engine and that cylinder never fully expandes from the cold water.


and kewylnx, even in oregon i have warrantied a water pump because the block froze and when i turned the engine over it snaped the prop shaft clean.

nick on pain killers