Can anyone tell me what this clock stamp says? It appears the block was made in 05. I need to know so I can get new cam bearings for my build.

 

 

right now it's just a bare block with 6.0 on the side and #12557184 on it that's all I know plus this stamp.

 

Where do the knock sensors go? Valley(Gen III) or side of block (Gen IV)?

 

as far as I know on the top on the valley so if it's gen III then what year is it?

 

2006 or earlier.

 

but how does that help me? Tsp said 98 to 03 was one cam bearing and 04 and up was another. So how do i know which i need lol

 

 

Does your block use 2 different length head bolts or just one, NOT counting the row of smaller bolts

 

04 could have either one of the 2 cam bearing sizes. I fought that battle. The OD is different between the 2, so just have a shop inside mike the cam tunnel bore, so you can get the right ones...

 

 

Can't see inside the valley with the lift plate on. Are the knock sensor bosses in the valley?

 

yes they are on the top. It appears the cam sensor hole is up top as well.

 

Definitely Gen III....

 

Ok so what year bearings should I get? They said ones from 98 to 03 and the other 04 and up.

 

Measure the bearing bore ID. That is the difference. Than call WS6store and tell them what you know and they will get you the right ones.

 

Ok another ? Do I need woodruff keys for the tsp crank if it's na or no? And also are they the same size key in both slots?

 

For the harmonic balancer? No. Ask The guys at WS6 store any questions you have. They are great guys. You will get customer service there.

 

Figured I'd update this to see if anyone may need the info at a later date. The clock stamp appears to be a 2005 stamp and the number on the block references to a lq4/lq9 block not sure as I didnt have heads or pistons or anything. But upon measuring the camshaft holes they damn near matched what texas speed had for there 2nd gen cam bearings then. I looked at the head bolt holes and found they were all the same length except the short ones by the intake. So it's a 2nd gen lq4/lq9 2004 or later model since the bolts are the same and the cam hole is bigger.

 

LQ4 and LQ9 are the same block; they use different pistons to raise the CR in the LQ9.
Glad you got it all straightened out! Best of luck to you in your build!