BR1-13 Stage 2

The Stage 2 assembled BR1-13 package is right for you if you are looking to make big power with a power adder such as Nitrous, Turbo, or a Supercharger on a cathedral port hydraulic roller setup! We came out with this package for customers that cannot quite afford Titanium Intake valves but need their valves to stand up to high cylinder pressure and temperatures. NOT ALL VALVES ARE CREATED EQUAL! There are a lot of cylinder heads being sold on todays market with the cheapest valves money can buy. This leads to Tuliped valves and possibly even worse the head breaking off of the valve and destroying your shortblock! These heads are professionally assembled to include vacuum tested, Spring pressures verified and install height set, valve stem heights set to equal lengths to assure the same pushrod length and even preload amongst all lifters which is critical in short travel lifters. Heads include Mueller Performance Severe Duty Custom Intake valves, Ferrea Inconel Exhaust valves, and BTR .685 lift springs with Titanium Retainers.  Average time to Assemble and ship these heads is 4 weeks  Minimum Bore Size 4.00"