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NR RACING

Head, Racing, Billet, GX160 & GX200, 15cc, Bigger Valve

PART NUMBER: 2787751
$926.00
"

MoFlow-1 by BlackMarkit

The new Moflow has been completely reworked to accept ""bigger"" valves, utilizing a 36mm intake valve and a 27mm exhaust. The valve spacing has been widened to safely accommodate the larger valves, along with the rocker stands to keep everything lined up. The intake bolts have been changed from the 43mm spacing to a wider 46mm spacing to allow for the bigger port. Material added on the spark plug side head bolts to move the bolt pattern if needed for larger bores. Long 3.100"" stainless valves with Comp Cams GP965 springs and Titanium retainers. Must use billet valve cover or valve cover spacer for clearance. Must use Blackmarkit intake or modify intake for 46mm spacing. Recommend 1/4"" x 5.5"" pushrods (length may vary, depending on rockers). Designed to be used with Gage Motorsports Black Venom rocker arms.


  • Designed for 3"" bore (2.98"" chamber)
  • 15cc chamber (methanol or gas)
  • 3.100"" stainless valves
  • Comp Cams GP965 springs
  • Titanium retainers
  • Wider valve spacing
  • Wider rocker spacing
  • Wider intake bolt pattern (46mm)
  • Improved Intake and Exhaust port Design.
  • Extra Material to move head bolts (extreme builds)

Intake Flow at 28""
LIFT CFM
.050 23
.100 44.5
.150 66.5
.200 90.5
.250 108
.300 119
.350 125
.400 127
.450 131
.500 137

"

Head, Racing, Billet, GX160 & GX200, 15cc, Bigger Valve

$926.00
 
"

MoFlow-1 by BlackMarkit

The new Moflow has been completely reworked to accept ""bigger"" valves, utilizing a 36mm intake valve and a 27mm exhaust. The valve spacing has been widened to safely accommodate the larger valves, along with the rocker stands to keep everything lined up. The intake bolts have been changed from the 43mm spacing to a wider 46mm spacing to allow for the bigger port. Material added on the spark plug side head bolts to move the bolt pattern if needed for larger bores. Long 3.100"" stainless valves with Comp Cams GP965 springs and Titanium retainers. Must use billet valve cover or valve cover spacer for clearance. Must use Blackmarkit intake or modify intake for 46mm spacing. Recommend 1/4"" x 5.5"" pushrods (length may vary, depending on rockers). Designed to be used with Gage Motorsports Black Venom rocker arms.


  • Designed for 3"" bore (2.98"" chamber)
  • 15cc chamber (methanol or gas)
  • 3.100"" stainless valves
  • Comp Cams GP965 springs
  • Titanium retainers
  • Wider valve spacing
  • Wider rocker spacing
  • Wider intake bolt pattern (46mm)
  • Improved Intake and Exhaust port Design.
  • Extra Material to move head bolts (extreme builds)

Intake Flow at 28""
LIFT CFM
.050 23
.100 44.5
.150 66.5
.200 90.5
.250 108
.300 119
.350 125
.400 127
.450 131
.500 137

"
 

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