by bmoeller » Sun Feb 17, 2013 3:39 pm
The 18.5 turbine housing has "18.5" cast into it. The 21 has "21" cast into it. Can't miss it.
If you push enough fuel, the 21 lights up decent and still keeps the EGTs in check.
NEW- '82 CREW cab dually. Cummins, NV5600, 205, D60/D80.

Work in progress......
'93 W350, CTD, ext cab, 5spd., HTT modded H1C, 4" exhaust, Kelderman single bag. 537k and counting!
SOLD- '92 W250, CTD, ext cab, 5spd
SOLD- '99 3500, SO CTD, 5spd
Traded off- '97 3500 CTD, 416hp/892tq.
Obama loves America, like OJ loved Nicole...................