January 30th, 2020, 05:11 PM
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Junior Member
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Join Date: Oct 2019
Location: Seabeck, Washington
Truck: 65 1502, SM420,GM 14 bolt, soon to be 4x4 SM465, NP205 DANA 60 and DANA 80
Age: 69
Posts: 24
Rep Power: 36
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Re: Intake manifold question
The reason I asked is there is a smaller opening near the single port on each head that mates to the intake manifold that doesn't connect to the interior flow path where fuel/air runners are, and that's why it appears to be for coolant flow.
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