246cc Intake Runner - 100cc Combustion Chamber / Vortec Chamber. 3716 valve id Direct replacement for 1996- 2001 engines. When installing on 1996 and earlier models, must use Bolt Down Rocker Arms and Head Gasket by Felpro # 1017 or equivalent. Brand New Bare Cylinder Head Casting. EQ Cylinder Heads are the only cylinder heads in the aftermarket with a limited 1 yr. Check out my other items! Price is for 1 cylinder head Replaces casting numbers: 10141279, 12560241. Message us if you have any questions on this item. To continues 48 states in the United States only. Questions, Comments & Feedback. Let us know so that we may improve…