243/ 317/ 799 CNC Cylinder Head Porting Service SPRING KIT:TSP .660" DUAL SPRING 65 Int 139 213 266

65 Int 139 213 266 311 340 352 Exh 107 150 186 216 225 232

but if this doesn’t meet your needs please call us so we can get you a custom set up for your needs

Our in house CNC port

Our 275CC heads start as an aftermarket casting that we designed our own port for

TSP 660 Spring Kit

243/ 317/ 799 CNC Cylinder Head Porting Service SPRING KIT:TSP .660" DUAL SPRING 65 Int 139 213 266**CUSTOMER SUPPLIES HEADS** All CNC services include: Disassembly and inspection Heavy cleaning Full CNC port PCD surfaced to your desired chamber size Proprietary valve job Hand blended valve job Cleaning and reassembly to your needs and specifications CONTACT US FOR OPTIONS Intake valve: 2. 02 Exhaust: 1. 570 Intake Port: 235cc Flow lift . 2 . 3. . 4 . 5 . 6 . 65 Int 145 205 251 291 318 320 Exh 111 153 193 209 219 221