Yellow-flesh Watermelons. A yellow watermelon is basically the same as one of any other color â it just has yellow flesh on the inside instead of the more common pink or red color. People use the yellow fruit the same way theyâd use any other type of red flesh watermelon.
To calculate the weight of aluminum, one needs to determine the size of the aluminium in cubic centimeters, and then, they need to multiply that number by the weight of the aluminum. Aluminium weighs  2.699 grams per cubic centimeter.
1 Weight: Aluminum heads weigh about 45 to 50 lbs., a pair, less than iron heads.  Durability: Ported iron heads can crack if the engine is badly over-heated. Yes this is true, but if the engine got that hot the aluminum head would have melted or been badly warped. The seat rings would have also fallen out, but the head might not crack.