no1chevyboy
New member
looks good to me!
mopar1rules
Active member
Wash looks really good, w/a little margin of safety.
rx1jim
New member
Mr Mopar, could you please explain what you are looking for with the piston wash pattern? How can you tell from the pictures that there is a safety margin? I am trying to learn how to read the piston wash patterns. Thanks!!
captnviper said:
captnviper, when you add the 2.5 timing key, all this wash will be differnt and likely as will your jetting in the carbs,just something to think about before you go too far. Adding timing puts heat in the pistons,it will surely take more fuel to keep the current piston temp/wash pattern on the pistons.
mopar1rules
Active member
rx1jim said:
if you look at the pics, that show the piston crowns, you will see the "washed" areas, near the outside perimeter. the "wash" areas are approx the size of your pinky nail. you can see by the size of his "wash" areas, that he is rich and has a margin of safety. on my engines, i don't let those "wash" areas get smaller than the size of a pencil eraser.
the washed areas are silver like in color, cause there is no carbon buildup there. the "silver" area is the aluminum piston crown.
This is what I was thinking. Its my friends sled and its efi so he may have to reconsider.mrviper700 said: