The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 Williams Header install

Jemezcrusher · 12-31-2018, 08:16 AM

The intake manifold is narrower at the bolting flange than the exhaust

I ended up adding 3/16ths to one side of each hold down clamp the ground to fit. Took a while but turned out OK I think

12-31-2018, 08:16 AM	#2
Jemezcrusher Registered User Join Date: Nov 2015 Location: Jemez Springs, NM Posts: 434	Re: Williams Header install The intake manifold is narrower at the bolting flange than the exhaust I ended up adding 3/16ths to one side of each hold down clamp the ground to fit. Took a while but turned out OK I think