AFR High Performance Exhaust Valve - 1.880" Head - 11/32" Valve Stem - 5.450" Long - BB Chevy Seat Belt Hardware 0:1 AFR (Requires Wiring) 0-5V

0:1 AFR (Requires Wiring) 0-5V Output Methanol values from 3

This is superior to utilizing silicone to seal internal baffles

52mm (2-1/16") gauge housing

made from ultra-light magnesium

AFR High Performance Exhaust Valve - 1.880" Head - 11/32" Valve Stem - 5.450" Long - BB Chevy Seat Belt Hardware 0:1 AFR (Requires Wiring) 0-5VProduct Description: Exhaust Valve High Performance 1. 880 in Head 11 32 in Valve Stem 5. 450 in Long Stainless Big Block Chevy Sold Individually Advanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components. Current product lines include cold air intake systems, high performance direct fit and racing air filters, exhaust systems, intercoolers, turbochargers, electronic