Installation Procedure
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
When reusing the valvetrain components, always install the components to the original location and position.
Valve lash is net build, no valve adjustment is required.
- Lubricate the valve rocker arms and pushrods with clean engine oil.
- Lubricate the flange of the valve rocker arm bolts with clean engine oil.
Lubricate the flange or washer surface of the bolt that will contact the valve rocker arm.
- Install the valve rocker arm pivot support.
- Install the pushrods.
- Install the rocker arms and bolts.
DO NOT tighten the rocker arm bolts at this time.
- Rotate the crankshaft until the number one piston is at top dead center (TDC) of the compression stroke.
In this position, cylinder number one rocker arms will be off lobe lift, and the 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 are left bank.
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:
- Tighten the exhaust valve rocker arm bolts 1,2,7, and 8 to 30 N.m (22 lb ft).
- Tighten the intake valve rocker arm bolts 1,3,4, and 5 to 30 N.m (22 lb ft).
- Rotate the crankshaft 360 degrees.
- Tighten the following valve rocker arm bolts:
Tighten:
- Tighten the exhaust valve rocker arm bolts 3,4,5, and 6 to 30 N.m (22 lb ft).
- Tighten the intake valve rocker arm bolts 2,6,7, and 8 to 30 N.m (22 lb ft).
- Install the valve rocker arm covers. Refer to Valve Rocker Arm Cover Replacement - Left or Valve Rocker Arm Cover Replacement - Right .
IMPORTANT:
Make sure that the pushrods seat properly to the valve lifter sockets.
IMPORTANT:
Make sure that the pushrods seat properly to the ends of the rocker arms.
NOTE:
Refer to Fastener Notice in Cautions and Notices.