Media Summary: Delays in the upgrades in my attempt to build a 300+ rwhp NA 4.8. Started the process to port a set of Showing the bowl cuts/blend with percentages. I talk about valve guide reduction, raising the roof of the exhaust ports, and the ... Showing how after having the deck surface milled .030” the combustion was 61.0cc Prior to having the

Ls 862 Heads Ported For Maximum Airflow - Detailed Analysis & Overview

Delays in the upgrades in my attempt to build a 300+ rwhp NA 4.8. Started the process to port a set of Showing the bowl cuts/blend with percentages. I talk about valve guide reduction, raising the roof of the exhaust ports, and the ... Showing how after having the deck surface milled .030” the combustion was 61.0cc Prior to having the LET'S TALK TECH, ANYONE EVER SEE A SET OF STOCK 243 Appropriately sizing the exhaust port exit to seamlessly transition into the exhaust Manifold/Header. In this video we are lapping the valves in our

Photo Gallery

LS 862 Heads Ported for Maximum Airflow
Porting LS 862 Heads for Velocity
862 heads 2.00/1.57 Valves FAIL
Ported 862 LS heads Final Ports
Porting LS 862 heads for the 4.8 Turbo day 2
LS 862 4.8/5.3 heads Fully Ported How to CC
Porting LS 862/706 how much do they flow?  254cfm @.600" lift?
Katech CNC-Ported 862/706 Cylinder Head Flow Data
862 heads DO NOT come with 61.5cc Chambers
LS 4.8/5.3  Big Valve 862 heads  2.00”/1.57” valves
862 heads can out flow 243’s?  Day 4
LET'S TALK TECH-243 VS 862
Sponsored
Sponsored
View Detailed Profile
Sponsored
Sponsored