Dominator 88SS valve clearances

My instruction book calls for the clearances (cold) to be:

inlet .003"

exh .005"

except for SS models which should then be .006 and .008.

Mike

It must be more to do with the cam and the pushrods surely? Iron or alloy pushrods?

If it is a gen 88SS bottom end ,Its likely (more than not) to have an SS cam ,in which case it needs 6 and 8 to achieve the correct timing , tighter clearance does not allow the valve enough time on the seat for cooling and can produce burnt valves . If it has the std pre SS Daytona cam with ramps a little extra clearance won't hurt it.

The Dommy motor is not always quiet, mine slaps a bit when cold (SS piston clearances) and was a bit clickey from the head, however since getting a balance of lubrication to the top end with a series of small adjustments to the banjo bias plus a set of RGM rocker spindle "restraints" it sounds better and idles slowly. I also put the better starting and idle down to a Boyer points assist EI unit that gives a strong spark.

Hello Jon and All, The clearances on an SS is more to do with the followers than the rest of the valve train. All SS's use the flat-footed satellite tipped type so as yours will have them from factory fit and are unlikely to have been changed, stick with the larger clearances. They open much quicker and consequently close much quicker than the three-inch radius types. All the SS types rattle a bit more but the extra power is worth it...... Cheers, Howard