Small Bore CID Ls3 SPRING KIT:PAC 1209X 7 Int 150 217 270

7 Int 150 217 270 315 340 346 356 Exh 99 141 190 218 233 240 242

These heads perform very well compared to other 260cc heads on the market

02                    Exhaust:             1

These are designed with breathers and clearance for most all popular shaft mount rockers

Small Bore CID Ls3 SPRING KIT:PAC 1209X 7 Int 150 217 270Our Small Bore CID LS7 CNCd heads include: Our in house CNC port PCD surfaced Proprietary competition valve job Hand blended valve job TSP 660 Spring Kit REV 2. 140 Intake Valve REV 1. 600 Exhaust Valve Minimum Bore size 4. 0 ***This is our most common setup, but if this doesnt meet your needs please call us so we can get you set up to your needs*** Intake valve: 2. 14 Exhaust: 1. 6 Flow lift . 2 . 3 . 4 . 5 . 6 . 65 Int 156 222 284 331 364 375 Exh