Valve Spring Installed Height
Measured from spring seat (or top of shim) to top of valve spring shield. If specifications exceeded (see Valve Springs " table above) , install a 1 "16" spacer under spring to bring within limits.
CAUTION:
Do not shim spring to give installed height less than specifications.
VALVE LIFT SPECIFICATIONS
| Year | Engine | Valve | Lift | |||
|---|---|---|---|---|---|---|
| 1968 | 396" | Int. | .3983" | |||
| Exh. | 3983" | |||||
| (350 HP) | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| 427" | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| (435 HP) | Int. | .5197" | ||||
| Exh. | .5197" | |||||
| 1969 | 396" | Int. | .3983" | |||
| Exh. | .3983" | |||||
| (350, 375 HP) | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| 427" | Int. | .3983" | ||||
| Exh. | .3983" | |||||
| (390, 400 HP) | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| (425, 430, 435 HP) | Int. | .5197" | ||||
| Exh. | .5197" | |||||
| 1970 | 396" (402") | Int. | .4614" | |||
| Exh. | .4800" | |||||
| 400" (402") | Int. | .3983" | ||||
| Exh. | .3983" | |||||
| 454" | Int. | .3983" | ||||
| Exh. | .4300" | |||||
| (360, 390 HP) | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| (460 HP) | Int. | .5197" | ||||
| Exh. | .5498" | |||||
| 1971 | 402" | Int. | .3983" | |||
| Exh. | .4300" | |||||
| 454" | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| (425 HP) | Int. | .5197" | ||||
| Exh. | .5197" | |||||
| 1972 | 402" | Int. | .3983" | |||
| Exh | .4300" | |||||
| 454" | Int. | .4614" | ||||
| Exh. | .4800" | |||||
| 1973 | (1) | |||||
|
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