LS7 CNC Cylinder Head Porting Service Spring Kit:TSP .660" This is our most common

This is our most common setup

6 Int 145 205 255 290 305 Exh 110 143 185 202 225

TSP 660 Spring Kit

65 Int 145 205 251 291 318 320 Exh 111 153 193 209 219 221

7 Int 152 225 273 319 352 365 Exh 109 152 187 214 230 236

LS7 CNC Cylinder Head Porting Service Spring Kit:TSP .660" This is our most common**CUSTOMER SUPPLIES HEADS** All CNC services include: Disassembly and inspection CHE guide upgrade 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 specification CONTACT US FOR OPTIONS Intake valve: 2. 20 Exhaust: 1. 615 Flow lift . 2 . 3. . 4 . 5 . 6 . 65 . 7 Int 156 237 300 338 375 391 402 Exh 108 162 205 232 246 250 253