Jones 290cc Brodix FF 13 - 4.500 Bore Spacing

Custom Brodix FF 13 STD CNC Casting
Intake Runner Volume:   290cc
Combustion Chamber Volume:   49cc
13° Valve Angle
88/184 Valve Spacing

Intake Valve:      2.200 dia. x .700 long (45°)
Exhaust Valve:   1.600 dia. x .700 long (45°)

5 deg. Intake Flange
Intake port opening at gasket:        2.23H x 1.4W
Distance from floor to deck at gasket:  1.675
Intake min. cross-sectional dim.:    2.7 sq.in.

Notations:
  Offset rocker shafts required
  Offset lifters required
  Combustion chamber machined for 4.250 bore

LIFT INTAKE EXHAUST
.200 159 114
.300 238 155
.400 304 194
.500 356 237
.600 377 253
.700 386 260
.800 389 265
Flow #'s by Weld Tech - CFM @ 28"


 
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