Top off your short block, or just upgrade your current setup with Boostline's CNC ported square port (LS3 Style) heads! These are a factory GM head that have been CNC Ported by Frankenstein Engine Dynamics (FED). These heads start off as a factory casting from GM then enter FED’s advanced manufacturing processes proven to generate the most efficient power in every application. We take great pride in our work and our attention to detail is unmatched in this industry. These Require a minimum bore of 4.000"
FED’s Boostline Heads Include:
Seasoned pair of either OEM GM square port heads
FED’s exclusive high performance porting programs via 5-Axis CNC – Intake/Exhaust/Chambers
Pressure Tested for Leak Detection
Precision Newen CNC Valve Job, which ensures near zero runout
All Cylinder Head Sealing Surfaces Including Ends are PCD Machined, Making Sure all Surfaces are True
Meticulous Hand Blending and Deburr
PCD Surfacing (Optimal For Modern MLS Head Gaskets)
Final Wash and Assembly
Extreme Attention to Detail and Quality Control at Every Stage
288cc Intake Ports
93cc Exhaust Ports
70cc Chambers
Stock Valves
.700 Lift Dual Springs with Titanium Retainers
These come assembled but do not include rocker arms or rocker stands.
