Small Bore CID Ls3 SPRING KIT:PAC 1209X These are designed with breathers

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

This is our most common setup

Our Brodix LS3 ported heads include:

02                    Exhaust:             1

Small Bore CID Ls3 SPRING KIT:PAC 1209X These are designed with breathersOur 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