1954

* Mid-production camshaft change increased horsepower rating to 155.

1955

1956

Note: WCFB carburetion manufactured by Carter.  (*) Actual horsepower of the RPO 469 engine equipped with RPO 449 hi-lift camshaft was not believed to have been published; rating of 240 is unofficial.

1957

Note: WCFB carburetion manufactured by Carter; FI means Rochester Fuel Injection.  (*) Existence of "EN" block is unverified; 579E equipped Corvettes may have been supplied with "EL" coded engines.

1958-1959

Note: WCFB carburetion manufactured by Carter; FI means Rochester Fuel Injection. 

(*) Engine not available until approximately 1/20/58.

1960

Note: WCFB carburetion manufactured by Carter; FI means Rochester Fuel Injection.  There is no recorded evidence of a 1960 "DH" engine (250 HP with fuel injection and Powerglide transmission).

* Advertised 275 and 315 horsepower engines with aluminum heads have never been verified as being delivered to a retail customer; 1959-type engines with cast iron heads ("CR" & "CS" codes) were substituted.

1961

Note:  (*) "CR" and "CS" coded engines were equipped with cast-iron cylinder heads.

1962

Note:  WCFB and AFB carburetion manufactured by Carter; FI means Rochester Fuel Injection.

1963

Note:  WCFB and AFB four-barrel carburetors manufactured by Carter; FI means Rochester Fuel Injection.

1964

Note:  WCFB and AFB four-barrel carburetors manufactured by Carter; FI means Rochester Fuel Injection; A/C means Air Conditioning (C60); T/I means Transistor Ignition (K66).

1965

Note:  WCFB and AFB four-barrel carburetion manufactured by Carter; FI means Rochester Fuel Injection; A/C means Air Conditioning (C60); T/I means Transistor Ignition (K66).  (*) The 396 engine entered Corvette production approximately February of 1965.

1966

Note:  L79 engines have hydraulic lifters.  K19 is Air Injection Reactor equipment; A/C means Air Conditioning(C6);  P/S means Power Steering (N40); M22 is Heavy-Duty Four-Speed Transmission.  All engines use Holley four-barrel carburetion.  Unlisted 1966 engine codes "IT" (heavy-duty 425 HP engine) and "IU" (425 HP with aluminum heads) were also assigned during the model year.  (*) 390 horsepower engine with Powerglide combination was added during the 1966 model year.

1967

Note:  All carburetion is Holley; either single four-barrel (1x4) or three two-barrels (3x2).  M22 is Heavy-Duty Four-Speed Transmission.  (*) The true 1967 L88 horsepower rating was never publicly disclosed; the horsepower figure was released for 1968.

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