The Shocker CNC Series is our top of the line performance cylinder head. It features professionally designed runners and chambers meticulously CNC ported in the U. There is no comparison in the market. Our new ultra smooth casting made of Grade A 356-T6 aluminum is precision machined to create the perfect platform for our new runner and chamber designs. This combined with our 5 angle competition valve job, diamond honed bronze guides, hand bowl blending and assembly by our professional builders right here in the U. A produces out of box performance that out performs the top brands in the industry. MAXX quality & MAXX performance at minimum pricing Promaxx Performance. ProMaxx SBC 225cc CNC Ported. Erson 2.08 & 1.600 SS Valves. 660 Lift Solid Roller or Aggressive Hyd. Erson Chrome moly retainers. Erson 7/16 rocker arm studs. Erson 5/16 Guide Plates. 225 cc intake runners. 68cc-78cc combustion chambers (unless requested 78cc will be sent). 141 206 257 284 300 305 305. 111 144 171 189 202 211 216. The item “ProMaxx CNC Ported SBC 225cc Small Block Chevy Cylinder Heads. 660 Lift Roller” is in sale since Thursday, September 28, 2017. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts”. The seller is “precisionautomachine” and is located in McMinnville, Tennessee. This item can be shipped worldwide.
- Type: Small Block Chevy
- Manufacturer Part Number: 225CNC
- Brand: Promaxx