Engine Removal and Swap
All of these installations are to be performed at your own risk!!!!
Step 7 (Swapping over Parts to the New Engine):
You will need to swap over parts (unless you purchased ALL new parts) to the new engine. I chose an LS2 so I had to do some extra stuff. I opted to keep my stock rockers because everyone says they are already good to go. So, things to do, remove the bellhousing and replace the clutch and flywheel if you are doing so. Now is the easiest time you will ever have to do it.
I started on the passenger side of the engine and lubed up the new pushrods with oil and placed them in place. Make sure they fully seat. Now transfer the rockers over. First the pivot plate and then the rockers. If you are using your stock rockers with the LS2 you will need to shim under the plate. Your engine builder should give you these.
You can see the shims in the pic below where the pivot plate bolts to. I used a little silcone to hold them in place.
Now, put on the pivot plates and swap over your rockers. Do not tighten the arms down yet. You will also want to put a little silicone sealer on the upper threads. Make sure the arms are seated properly on the pushrods. Now it is time to find TDC (Top Dead Center).
Finding TDC. Rotate the crankshaft until the number one piston is at TDC of the compression stroke. In this position, cylinder number one rocker arms will be off lobe lift, an dthe crankshaft sprocket key will be at the 1:30 position. The engine firing order is 1, 8, 7, 2, 6, 5, 4, 3. Cylinders 1, 3, 5, and 7 ar left bank and cylinders 2, 4, 6, and 8 are right bank.
With the engine in the number one firing position, tighten the following valve rocker arm bolts: Tighten the exhaust valve rocker arm bolts 1, 2, 7, and 8 to 22 ft. lbs. Tighten the intake valve rocker arm bolts 1, 3, 4, and 5 to 22 ft. lbs.
Rotate the crankshaft 360 degrees. Now tighten the following valve rocker arm bolts: Tighten the exhaust valve rocker bolts 3, 4, 5, and 6 to 22 ft. lbs. Tighten the intake valve rocker arm bolts 2, 6, 7, and 8 to 22 ft. lbs. You should now be good to go.
Remove the starter and starter shields (black plastic) from the old motor. Swap the plug that is behind the starter to the new motor.
Swap over the plug on the passenger side head.
You get the idea, just start swapping over all the parts/sensors over. DON"T FORGET ABOUT THE TWO PLUGS ON THE BACK SIDES OF THE BLOCK. If you forget to put these on you will spill out all your coolant. Now is also a good time to put on the balancer. I opted for an ATI Super Dampner that is keyed. Just make sure you seat the balancer properly. Use the OLD BOLT to pull the balancer down and a new one to hold it down once it is fully seated. Never reuse the old stock bolt. Make sure it is fully seated. There should be no more than .094-.176" of clearance.
The knock sensors will need to be relocated to accomodate the LS2. You engine builder should have drilled and tapped spots on the sides of the block for this purpose. You will need to extend the knock sensor wires to reach the sensors. Make sure you fully wrap the wire and route it in a protected area so it is not damaged. Just pay attention to the colors and match accordingly. I also completely wrapped mine with electrical tape.
