L31 350 installation questions

[Quikshft]

Originally Posted by weim55

Bolt your headers to the engine and check clearance for spark plugs-plug wires. L31 spark plug location is slightly different and mighty close to a couple tubes. I modified a couple tubes on mine for proper clearance.
You will also need an adapter for different size hole if you are running a factory temp gauge-sender in the cylinder head.

Steve weim55 Colorado

My old engine actually had Vortec heads on it. Yes a couple of the plugs were real close but they worked ok.

The water neck on the intake actually has a tap I screwed the original temp sender into. Seems to work ok.