The MP aluminum housing looks just like a stock one.
I'm running the 440 Source housing with a Flowcooler pump Right...and you were asking what to upgrade it with b/c of the small passage concerns with the 440 source housing. So I said the MP housing works great, doesn't have small passages, and looks stock.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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