Skunk2 Alpha Series Honda/Acura H Series Valve Spring and Titanium Retainer Kit 1972-chevrolet-k20-pickup-esi6439610 Header Bolt Thread Pitch: Early

Header Bolt Thread Pitch: Early Gen 1 (2011) and some Gen 3 (2018+): M10x1

"name": "Will these headers work with my factory dual exhaust system

Stainless Steel Front strut bodies

and the BORLA® Million-Mile Warranty

Completely raw wake-the-dead level muscle

Skunk2 Alpha Series Honda/Acura H Series Valve Spring and Titanium Retainer Kit 1972-chevrolet-k20-pickup-esi6439610 Header Bolt Thread Pitch: EarlyAlpha Series Valve Spring And Retainer Kit; Seat Pressure 50 Lbs At 1. 400 in.; Open Pressure 205 Lbs At 0. 900 in.; Coil Bind 0. 880 in.; Incl. Dual Valve Springs Titanium Retainers; Open Pressure 205 lbs. at 0. 900 in. Seat Pressure 50 lbs. at 1. 400 in. Coil Bind 0. 880 in. For H Series This Part Fits: Year Make Model Submodel 1997 2001 Honda Prelude Base 1997 2001 Honda Prelude Type SH 1993 1996 Honda Prelude VTEC