My home inspection of Speedmaster heads
So far so good. Just out of the box anyway. The casting parting lines in the ports are quite smooth. A flap wheel will clean those up in a jiffy. It probably won't make any difference but it couldn't hurt. Yes the rockers are quite close to the springs and retailers. The shafts are only finger tight and a proper torque could make the difference. 010 would probably be enough as the gap opens up as the valve opens. When the valve seats is the tight spot, for the rockers. Got to remember, these are inexpensive aftermarket parts and a small amount of modifications might be necessary. For the price I think I did A OK.
So far so good. Just out of the box anyway. The casting parting lines in the ports are quite smooth. A flap wheel will clean those up in a jiffy. It probably won't make any difference but it couldn't hurt. Yes the rockers are quite close to the springs and retailers. The shafts are only finger tight and a proper torque could make the difference. 010 would probably be enough as the gap opens up as the valve opens. When the valve seats is the tight spot, for the rockers. Got to remember, these are inexpensive aftermarket parts and a small amount of modifications might be necessary. For the price I think I did A OK.