Intake on or off when installing motor from the bottom
The only reason I would see to wait is to hook up the ground straps and brackets on back of the heads or can you reach them?
Thanks.
also, don't forget to put your map sensor in the back of your intake (if it's a stock LS1 intake manifold) before putting the engine in the car. i had forgotten to do this and when i installed my engine i had to remove the intake.
The ground wires in the back have to be a bitch to get to.
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