Coolant lines ?'s
INSTALLATION OF WEIAND ALUMINUM INTAKE MANIFOLD:
1. LS6 engines do not need modification to the valley coolant tubes. 2000 and earlier LS1 engines do need modification. If you want to use the LS6 parts on your LS1 engine, the GM part numbers are #12578838 for the front crossover and #12563325 for the rear plugs. The rear plugs are called the LS6 head water cover and you will need a quantity of 2. If you want to use your stock coolant tubes, you can cut, flatten, fold, and braze/solder the coolant lines, as shown in Figure 1.
Last edited by Tranzaman00; Aug 10, 2005 at 10:21 PM.


