7.4/8.2L GM 434/502 CID V8

O-Ring (oem 304174) $0.64	Exhaust Manifold (oem 3861459) (oem 3852362) $250.00	Exhaust Riser (oem 3857944) $129.00
Exhaust Manifold Gasket (oem 3852472) (oem CHVA-47-0000) $12.43	Exhaust Riser Gasket (oem 3850496) $2.39	Straight Fitting $6.52