WebMMX CNC Porting Services HEMI Engine Program by MMX Forged HEMI Rotating Assemblies Forged HEMI Drop-In Pistons & Rods HEMI CNC Ported Heads HEMI Engine Gaskets HEMI Camshafts & Valvetrain HEMI Performance Intake Manifolds HEMI Exhaust Systems High Velocity Throttle Bodies HEMI Specialty Tools and Tech HELP Other HEMI … WebFeb 21, 2024 · Porting the stock head might get you there, but you’d be maxed out. Our heads flow 400 cfm as cast, right out of the box. This makes it much easier to build a 650 …
A Guide To Mopar V8 Cylinder Head And Block Casting Numbers
WebMar 21, 2009 · The key to a good blower install is exhaust system work...starting at the heads. GOOD idea to polish up the exhaust side. The Blower will stuff the mix in, but any help you can give the exhaust side will help a lot...no blower to help, on that end. WebNov 17, 2024 · This chart looks at an OE LA 1.94 valve casting, the Mopar Performance R/T head with 2.02-inch intakes, a Magnum 1.94 valve port, and the EQ Iron Ram with both 1.94 and 2.02-inch valves. As you ... high thermal conductivity copper alloy
Porting cylinder heads to optimize engine performance Hagerty DIY
WebJan 6, 2009 · In terms of largest port cross section for top end power, the best as-cast early Chrysler Hemi heads are the 1955 331 heads, called the "triple nickel" heads. To use … WebThis port design would be considered maximized using the valve sizes that come with these heads (2.08 /1.800 ). These heads flow up to 325cfm @ .650 lift which is nearly a 100cfm gain from as cast. Easily bolt on an additional 80+hp using this program. Price: $2200 WebDec 1, 2005 · It appears our Hemi engines would really respond to this. The stock Hemi head flows around 270cfm/161cfm @ .500 lift and with a small amount of pocket porting the gains of 302cfm/195cfm are seen. A 20-30 cfm increase is huge power, anywhere from 30-40HP more out of our Hemis....and then add the chip/thermo/cai on top of that. high thermal