12639087 L86 6.2L Ported Intake Manifold Inlet Ported For LT5 TB Fits 5.3L L83

Selling these New OEM AC Delco 12639087 L86 6.2L Ported Intake Manifold Upgrade For L83

ALL New OEM AC Delco Parts

Ported 6.2L L86 Intake Manifold ONLY

Inlet opened up to accommodate a LT5 95MM TB

Yes you still need a throttle body adapter to be able to bolt up the lt5 to the manifold. The inlet is opened up to 93mm for better airflow transition. Ict billet is only adapter I recommend.

You’ll see

-Better acceleration

-Less lag

-Increased throttle response

-More horsepower and torque all over the RPM Band gains with the bigger LT5 tb, all depending on vehicle modifications.

I’ve sold hundreds of these kits with all happy customers!

NOTICE: on the intake manifold I do NOT Remove the internal pillars. I leave them so manifold retains its structural rigidity so no issues will happen down the road. Runners are ported 7” deep removing all imperfections from miss aligned runners and inlet is ported as well.

@454chuy on Instagram for references

Or message 469/583/9201