RPO Code | UPC Code | Type | Source | Displ cid | Bore & Stroke | Carb | Comp | HP/RPM | Torque/RPM | VIN | Block code(s) | RPO | UPC | Transmission | Axle | Opt Axle | Base | Esprit | Formula | Trans Am | Notes |
341 | L22 | Inline 6 | Chevrolet | 250 | 3.88 x 3.53 | 1 bbl | 8.5:1 | 155@4200 | 235@1600 | n/a | ZB | 353 | std | 3 Speed Manual (Column Shift) | 3.08 | | S | n/a | n/a | n/a | |
ZG | 352 | M25 | 2-Speed Powerglide Automatic | A | n/a | n/a | n/a |
359 | M38 | 3-Speed Turbo Hydramatic Transmission (Turbo 350) | A | n/a | n/a | n/a |
343 | L30 | V-8 | Pontiac | 350 | 3.88 x 3.75 | 2 bbl | 8.8:1 | 255@4600 | 355@2800 | n/a | WU | 353 | std | 3 Speed Manual (Floor Shift) | 3.36 | | A | S | n/a | n/a | |
355 | M13 | 3 Speed Heavy Duty Manual with Floor Shift | A | A | n/a | n/a |
354 | M20 | 4 Speed Wide Ratio Manual Transmission (Floor Shift) | A | A | n/a | n/a |
YU | 352 | M25 | 2 Speed Powerglide Automatic | 2.73 | | A | A | n/a | n/a |
359 | M38 | 3-Speed Turbo Hydramatic Transmission (Turbo 350) | A | A | n/a | n/a |
346 | L65 | V-8 | Pontiac | 400 | 4.12 x 3.75 | 2 bbl | 8.8:1 | 265@4600 | 397@2400 | n/a | XX | 351 | M40 | Turbo Hydramatic 3 speed Automatic (Turbo 400) | 3.07 | 3.31** | n/a | A | n/a | n/a | |
345 | L78 | V-8 | Pontiac | 400 | 4.12 x 3.75 | 4 bbl | 10.25:1 | 330@4800 | 430@3000 | n/a | WT | 355 | M13 | 3 Speed Heavy Duty Manual with Floor Shift | 3.55 w/o AC. 3.31 w AC | 3.73* | n/a | n/a | S | n/a | |
354 | M20 | 4 Speed Wide Ratio Manual Transmission (Floor Shift) | n/a | n/a | A | n/a | |
358 | M21 | 4 Speed Close Ratio Manual Floor Shift with Hurst Shift | n/a | n/a | A | n/a | requires (361) Safe-T-Track |
YS | 351 | M40 | 3-Speed Turbo Hydramatic Transmission (Turbo 400) | 3.07 | n/a | n/a | A | n/a | |
348 | L74 | V-8 | Pontiac | 400 Ram Air III | 4.12 x 3.75 | 4 bbl | 10.5:1 | 335@5000 | 430@3400 | n/a | WS | 355 | M13 | 3 Speed Heavy Duty Manual with Floor Shift | 3.55 w/o AC. 3.31 w AC | 3.73* | n/a | n/a | A | n/a | |
354 | M20 | 4 Speed Wide Ratio Manual Transmission (Floor Shift) | n/a | n/a | A | S | |
358 | M21 | 4 Speed Close Ratio Manual Floor Shift with Hurst Shift | n/a | n/a | A | A | requires (361) Safe-T-Track in Formula 400 (std with Trans Am) |
YZ | 351 | M40 | 3-Speed Turbo Hydramatic Transmission (Turbo 400) | 3.55 | n/a | n/a | A | A | |
347 | LS1 | V-8 | Pontiac | 400 Ram Air IV | 4.12 x 3.75 | 4 bbl | 10.75:1 | 345@5400 | 430@3700 | n/a | WW | 354 | M20 | 4 Speed Wide Ratio Manual Transmission (Floor Shift) | 3.73 | | n/a | n/a | n/a | A | |
358 | M21 | 4 Speed Close Ratio Manual Floor Shift with Hurst Shift | n/a | n/a | n/a | A |
XP | 351 | M40 | 3-Speed Turbo Hydramatic Transmission (Turbo 400) | n/a | n/a | n/a | A |