VALVE LIFT SPECIFICATIONS (STOCK):

ENGINE

120

YEAR20

VALVE LIFT

INTAKE BTDC

IN

EXH

307

307

307

307 [A]

1968

1969

1970-1973

1972

.3900

.3945

.3900

.4006

.4100

.3945

.4100

.4100

28

28

28

44

NOTES:

 [A] California Vehicles

 [C] Camaro

 [F] Exc. Corvette HP

 [G]Corvette HP

 [H] Corvette

 [J] Exc. Corvette

 [K] HP VIN Code "G"

 [L] VIN Code "H"

[M] Exc. Z-28

327 / 250-300 HP

327 / 350 HP

327 / 365 HP

327 / 210-300 HP

327 / 325 HP

1962-1966

1965-1968

1965

1967-1968

1967-1968

.3987

.4472

.4471

.3900

.4472

.3987

.4472

.4850

.4100

.4472

32

54

-

28

54

350

350 / 255 HP

350 / 300 HP

350 / 350 HP

350 / 370 HP

1967-1968

1969

1969-1970

1969-1970

1969

.3900

.3945

.3900

.4500

.4851

.410

.3945

.4100

.4600

.4851

28

28

28

52

52

350 / 250 HP

350 / 370 HP

350 [J] [M]

350 / 330 HP

350 [A]

1970

1970

1971-1982

1971

1972

3900

.4586

.3900

.4586

.4006

.4100

.4850

.4100

.4850

.4100

28

42

28

42

44

350 / 255 HP

350 [C] [H]

350 [H]

350 [J] [M]

350 [H]

1972

1974-1981

1982-1988

1983-1989

1985

.4586

.4500

.4100

.3855

.4040

.4850

.4600

.4230

.4035

.4150

42

52

-

-

-

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