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View Full Version : IMCO Powerflow Risers



Forrest
09-18-2002, 10:59 AM
Brand new and never used pair of standard rise IMCO Powerflow stainless-steel risers, model PF-82A. New they sell for $743/pr on the IMC O web site (http://www.imcomarine.com/cgi-bin/vcat2/CatalogMgr.pl?cartID=b-2479&template=htx/temp2.htx&SearchField=category&SearchFor=SSARP&hdrFile=hdr/SSARP.txt&ftrFile=ftr/PWFMP.txt), I'll sell this pair for $350 plus shipping.

http://www.donzi.net/photos/powerflowrrsers.jpg

Rootsy
09-18-2002, 11:37 AM
Those are standard risers for the powerflow / stock mercruiser manifolds for a Big Block w/ Bravo correct? SBC p/n being M-72 i believe...

Forrest
09-19-2002, 08:22 AM
Jamie, no, these risers only fit IMCO manifolds and will not fit stock Mercrusier manifolds. The M-72/73 (http://www.imcomarine.com/cgi-bin/vcat2/CatalogMgr.pl?cartID=b-2479&template=htx/temp2.htx&SearchField=category&SearchFor=SSRM&hdrFile=hdr/SSRM.txt&ftrFile=ftr/RIS.txt) has a different mounting flange.

Greg Maier
10-21-2002, 06:49 PM
Will these risers only fit on the powerflow manifolds? Or will they fit on the IMCO thumperpower manifolds.

Forrest
10-23-2002, 11:44 AM
Greg, I don't think they would fit the Thumper Power series since that is an all cast aluminum product including the risers with no stainless riser option.