The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - TX WTB: GMC 351 or 401 v6 Magnum intake manifold

cbeerman · 03-24-2019, 07:48 AM

Sorry if I wasn't clear but using the magnum intake will cause the port issues, the 305E intake will fit you ports.

IIRC the 305A only has a one barrel manifold so the 305E 2 bbl intake should wake you your V6.

BTW Some have milled the top off the magnum manifold and bolted on a 4 bbl adapter if you are planning this then the magnum manifold is the one you need.

03-24-2019, 07:48 AM	#3
cbeerman Registered User Join Date: Jan 2016 Location: NJ Posts: 406	Re: WTB: GMC 351 or 401 v6 Magnum intake manifold Sorry if I wasn't clear but using the magnum intake will cause the port issues, the 305E intake will fit you ports. IIRC the 305A only has a one barrel manifold so the 305E 2 bbl intake should wake you your V6. BTW Some have milled the top off the magnum manifold and bolted on a 4 bbl adapter if you are planning this then the magnum manifold is the one you need.