WebApr 10, 2010 · They are "peanut port" heads. Small valves, ports and runners. R restowman … WebMar 1, 2008 · These peanut ports are roughly 30 percent smaller than an aftermarket 270cc version. There are larger factory oval-port, cast-iron, open-chamber heads at 250 cc, but the only ones we could...
Big-Block Heads Shootout - The Big O Vs. The Big R
WebAug 23, 2009 · Said it many times before on this board: Peanut Port big block heads flow … WebThe heads up to about 300 cc from Air Flow Research (AFR), Brodix, Edelbrock, Pro-Filer, and Trick Flow Specialties (TFS) are prime examples. Such heads can deliver impressive results, not because they are a rectangular design, but because the volume is appropriate for the application. Port Volume green square accord high mount
Big-Block Heads Shootout - The Big O Vs. The Big R - MotorTrend
WebJan 18, 2024 · The Edelbrock 60455 Performer RPM O-Port cylinder heads are perfect for street performance, daily drivers, street rods, and muscle cars. These cylinder heads deliver great throttle response and power from 1,500 to 6,500 rpm. At … WebSep 13, 2009 · Right, they are the modern replacements for the Peanut Port BB heads that are anywhere from 198 to 235 cc's, if I remember right. Most like 200 cc's tho... I have the mag article mentioned earlier. pdq67 PS., and fwiw, there are regular large oval port BB heads out there that have 1.84" and 1.94" intake valves and 1.66" exhaust valves. WebJan 2, 2010 · GM’s larger oval port head has an intake port volume of around 255 cc and flows about 270 cfm of air. (These heads are becoming scarce as they were replaced early in production with “peanut port” versions.) AFR’s smallest oval port head has a 265 cc intake port volume and flows up to 350 cfm – a whopping 30 percent more airflow ... green square accord kettering