exhaust cross over (heat riser) fill

FSA1673 · 01-28-2013, 08:20 PM

Mine have been filled with aluminum, poured in from the combustion chamber. I used to just have them blocked off with aluminum plates on the intake side of the head. My 71 HO intake is aluminum and does not have the heat cross over as part of the intake.

I am curious if filling the head with aluminum will result in any power gains now that the two middle cylinders are not connected anymore.

Any thoughts??

Scott

01-28-2013, 08:20 PM	#3
FSA1673 Junior Member Join Date: Jan 2010 Posts: 83 Likes: 0 Liked 12 Times in 6 Posts	Re: exhaust cross over (heat riser) fill Mine have been filled with aluminum, poured in from the combustion chamber. I used to just have them blocked off with aluminum plates on the intake side of the head. My 71 HO intake is aluminum and does not have the heat cross over as part of the intake. I am curious if filling the head with aluminum will result in any power gains now that the two middle cylinders are not connected anymore. Any thoughts?? Scott