Damnit!

[360hp350]

Well I finnally put my motor in my K5. We started it up and it sounded real good for about 15 minutes. Then I started noticing a slight knocking. So I assumed it was just a rocker arm that needed adjusted. So I pulled off the valve covers and proceeded to set the valves. Well that didn\'t help. So I checked the torque coverter to make sure it was tight to the flex plate and it was. So I checked the compression and it was also good. My oil pressure was at a constant 70psi so no spun bearing. Finally I pulled spark plug wires on each cyclinder. I finally got to the 8th cylinder and it quit knocking. So I think it is a wrist pin. So now I get to get in a fight with the business that built my motor. Hopefully they will honor their warranty! Just thought I would share my shitty day with everyone!

[bohn333]

sorry to hear that, atleast you dealt with a place that offers warrenties, some people don\'t even do that and when it blows all they say is to bad.

[mommasboy]

Are you sure it has good piston to valve clearance on all cyl.?

[360hp350]

I\'m wondering because I had them cut the valves larger (from 1.94 to 2.02) and on the 8th cylinder the valvespring looks about an 1/8\" lower than the others which means they didn\'t cut it as deep or it is bent or sticking. But I don\'t see why it would quit the noise when I pulled the sparkplug if I didn\'t have good clearance. We are calling the machine shop today.