Water Pump: Olds 403 6.6ltr 77-79 + Various GM (w/ AC)Olds 403 6. 6 Ltr Water standard duty water pump as found in the 77 79 Firebird TA series & many GM Vehicles sold in tighter USA emission states . Comes with a gasket also. The Olds is a "6. 6 Litre" .. is often confused with the 6 ltr 400 Pontiac of the same years. To help it.. the Olds has the Fuel pump on the RHS.. US Passenger Side .. and the Starter on LHS.. The Pontiac has the Starter on the same LHS.. but the Fuel pump on the LHS. This is for