They made 3 different small block timing covers:
‘69 down.
’70 to '91 (until magnum redesign).
Then the magnum timing covers ('92 to '03) are the 3rd design.
All three will interchange – as long as you have the appropriate brackets to go with the cover.
Edit: Small block is referring to 273, 318, 340 and 360 ci.
I forgot the mention. The difference of ’69 down vs. ’70 up is the water pump neck is on other ends (Left vs. Right) and timing marks are on other end of water pump neck.
The magnum timing cover is somewhat close to the ’70 up cover, but has no provision for the fuel pump.
‘69 down.
’70 to '91 (until magnum redesign).
Then the magnum timing covers ('92 to '03) are the 3rd design.
All three will interchange – as long as you have the appropriate brackets to go with the cover.
Edit: Small block is referring to 273, 318, 340 and 360 ci.
I forgot the mention. The difference of ’69 down vs. ’70 up is the water pump neck is on other ends (Left vs. Right) and timing marks are on other end of water pump neck.
The magnum timing cover is somewhat close to the ’70 up cover, but has no provision for the fuel pump.
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