Bel Air interiors had an optional massive expanse of chrome across the lower part of the dashboard (most were painted), along with a deluxe Bel Air steering wheel with full chrome horn ring. Carpeting and full wheel covers rounded out Bel Air standard equipment. For 1954, the Bel Air stayed essentially the same, except for a revised grille and taillights, and a revised engine that had insert bearings and higher oil pressure, needed for the full-flow oil filtration system that was not available prior to 1954. Prior to 1954, the 235 and 216 cubic inch six cylinder engines had babbit bearings and scoops to create oil pressure at the bottom of each rod and the oil pressure was standard at 15-30 PSI. During these years, there were three engine choices, depending on the transmission ordered. Both 235 cubic inch engines were "Blue Flame" inline six cylinder OHV engines, featuring hydraulic valve lifters (in 1953 with automatic transmissions) and aluminum pistons. The 235 cubic inch displacement engine was standard on stickshift models, with solid lifters and splash plus pressure lubrication including babbit bearings. Powerglide cars got a version which had hydraulic lifters and full pressure lubrication.