ProFab Header Set 604 DLM - XR1 Inside Frame Rail - Complete Set
Looking for headers with the most power and amazing durability? They're right here.
These Collector Style Headers have been redesigned to meet crate rules.
Dyno tested and proven.
Pro Fab has brought their extensive NASCAR and Indy Car knowledge to 604 Dirt Late Models. Some of the features include:
- CNC machined flange for better precision and lighter weight
- American-Made steel because only the best will do
- TIG welded for better flexibility and durability. If you've had issues in the past with header welds cracking, you will appreciate this feature.
This header is designed to fit inside the frame rail for Rocket XR-1 Chassis. For other chassis, take a look at our listing for the standard installation: Pro Fab Header Set
Dirt Late Model 604 Crate Kit Includes:
- 1 Chevy 604 Crate Engine, 23 Deg Chevy Head, 1 5/8"-1 3/4" Stepped, 4 into 1, 3" Outlet, Stainless Steel Exhaust Header
- 2 Pro-Chamber-350 Mufflers
- 2 Muffler Support Clamps