gears and converter for an L78 cammed big block

[earntaz]

Originally Posted by WILMASBOYL78

I would think a 3.55 - 3.73 range with a quality convertor 2600-2800 would do the trick. You might want to check with ATI and give them your specs and possible rear gears and see what they recommend. Another thing to consider is the transmission...is it bone stock? shift kit? performance governor?...

The original L78/LS6 packages had a HD TH400, 6 lug convertor and a special governor that allowed for high rpm shifts...around 6200 rpm.

If the rpm's don't scare you, then 4.10's will really make it jump.

-wilma

If you put the 4:10 gear in it -- it will really haul donkey ... good luck!! TAZ

[aaronkl84corvett]

ok - well do you uys tend to believe that the L78/L72/LS6 etc. cam is the end all be all street-strip cam for a 10:1 BBC?

i'd happily consider a cam swap to something a little more favorable to a heavy car with taller gears - but i'm not interested in a crazy roller setup or one of those super aggressive ramp profile grinds that all the cam companies want to sell

cheers

[luzl78]

A truck torque pulling cam would work great. Eric (vintage muscle parts) can set you up well.