i learned this the hard way.. didnt round the port out and lost the 3 seals in the first 5hrs of running. i went back and shamfered them out and all looks good now. should be ready to:drive: its heart out now.. fingers crossed

 

Hello From germany how many support needs the Corner seal ?

 

yo ito does your aggresive large street port template suport the side seals?

 

hmmm luckily i came accross this. my engine has made itself its own side seal groove over 7000kms and would probably have been fine for a while. i pulled it down after overheating it and noticed the port havin a groove and the side seal having a rounded edge. il smooth out the area and carry on .