Manley Small Block Chevy LS-1 / LS-2 (LS-6 Head) 1.550 Head Diameter Race Flo Exhaust Valves

Manley Race Flo exhaust valves for Small Block Chevy LS-1 and LS-2 (LS-6 head) applications feature a 1.550-inch head diameter and are engineered for engines operating up to 8,000 RPM. Constructed from stainless steel with swirl-polished under‑head areas and fully machined combustion faces, they offer chrome stems and hard tips; recommended for alcohol engines and available in Race Flo or Race Master shapes. Stem .3136, O/A 4.923.

Manley Small Block Chevy LS-1 / LS-2 (LS-6 Head) 1.550 Head Diameter Race Flo Exhaust Valves