Acid

SBillinson · 11-27-2022, 10:33 PM

Everyone knows that porting has been going on in Stock for decades. I'm sure some have even welded ports and chambers.

With the valve job rule and availability of CNC seat and guide machines, like a Newen, I don't see the point of porting and risk being tossed. In most cases, camshaft lift is 0.550" and under. Getting heads to work without porting is not impossible, so long as you're willing to do the R&D or pay for it.

11-27-2022, 10:33 PM	#29
SBillinson Junior Member Join Date: Jan 2004 Posts: 94 Likes: 42 Liked 183 Times in 48 Posts	Re: Acid Everyone knows that porting has been going on in Stock for decades. I'm sure some have even welded ports and chambers. With the valve job rule and availability of CNC seat and guide machines, like a Newen, I don't see the point of porting and risk being tossed. In most cases, camshaft lift is 0.550" and under. Getting heads to work without porting is not impossible, so long as you're willing to do the R&D or pay for it. __________________ SS/BS 1921