posted December 22, 2005 07:44 AM
Ok, here's the skinny. A friend of mine is running two Mustang Mini-stocks. One has a 2.3 and the other a 2.5. Both engines are cracking the cylinder walls in exactly the same place in each cylinder. One of the motors he had sleeved and the sleeve cracked in the same place! If you're looling down at the top of the block and the water pump is at 12 o'clock the cylinder walls are cracking at approximately 4 o'clock, almost directly towards the head bolt boss. The engines are overheating and he doesn't turn the engines over 7800. Any ideas would be greatly appreciated. Other than this issue his engines are quite strong.
juliaferrell Dirt Freak
Total posts: 389
posted December 22, 2005 09:28 AM
More common when detonation is occuring....Are the cylinder walls scuffing up? Are these small journal blocks? E8 casting number?
How much do you have the head shaved and what cam are you running? Stock carb or 4412, 7448 ect?
racerman707 Dirt Freak
Total posts: 395
posted December 22, 2005 10:17 AM
Are you cutting the head bolts off so they don't bottom?