i am rebuilding the engine in my 99 pontiac grand am its a 2.4 dohc engine and i have replaced my rings and got my crank in and am now ready to install my pistons my only problem is i dont know which direction the rods connect to the crank the rods were never removed from the pistons.i was told there was a mark on top of the piston or an arrow that is supposed to face the front of the block and there is no such there is also no arrow on my rods or caps either there is an oil spurt hole on one side of my rods. can anyone please tell me which way these are supposed to be installed?