STREET PERFORMANCE/COMPETITION VALVES
Chevrolet LS Series Ferrea Part No.
Description
Diameter
Length
Qty.
LS1/LS6 6000 Series Competition Valves Exhaust Valves FERF6232-8 Comp 6000/LS1 Corvette, 5/16"
1.550" 1.600" 1.600" 1.600" 2.000" 2.020" 2.055" 2.080"
4.915" 4.915" 4.915" 5.015" 4.900" 4.900" 4.900" 5.000"
8 8 8 8 8 8 8 8
FERF6233-8 FERF6235-1 FERF6267-8
Comp 6000/LS1 Corvette, 5/16" Super Flo Comp 6000/LS3, 5/16" 24 Deg. Tulip Super Flo
Comp 6000/LS1, 5/16"
Intake Valves FERF6230-8
Comp 6000/LS1 Corvette, 5/16"
FERF6231-8 FERF6234-8 FERF6268-8
Comp 6000/LS1 Corvette, 5/16" Super Flo
Comp 6000/LS1 Corvette, 5/16"
Comp 6000/LS1, 5/16"
Exhaust Valves FERF1892P-8
Comp Plus, 24 Deg. Turbo -.313" Comp Plus, 15 Deg. Turbo -.313"
1.600" 1.550"
4.915" 4.915"
8 8
FERF1894P-8
LS3 6000 Series Competition Valves Exhaust Valves FERF6235-1 Comp 6000/LS3, 5/16" 24 Deg. Tulip Super Flo
1.600"
4.915"
8
Intake Valves FERF6279-8
Comp 6000/LS3, 5/16" Super Flo
2.165"
4.900"
8
LS7 Competition Plus Exhaust Valves FERF1597P-8
Comp Plus, 24 Deg. Turbo, .310" Comp Plus, 15 Deg. Turbo, .310"
1.615" 1.615"
5.227" 5.227"
8 8
FERF1598P-8
Intake Valves FERF2014P-8
Comp Plus, Hollow Stem Backcut Special Alloy, .3135"
2.200"
5.180"
8
L92 Competition Plus Intake Valves FERF2010P-8
Comp Plus, Hollow Stem Backcut Special Alloy, .3135"
2.200"
5.180"
8
Note: Most of the above valves are available each. Simply replace -8 with a -1 for a single valve.
Manley Part No.
Description Qty. LS1/LS2/LS6 GEN III Race Master And Pro Flow Exhaust Valves MAN11361-8 Race Master, .3136" 1.550" 4.923" 8 MAN11363-8 Race Master, 5/16" 1.575" 4.923" 8 MAN11621-8 Pro Flo, .3133" 1.590" 4.923" 8 MAN11365-8 Race Master, 5/16" 1.600" 4.923" 8 Intake Valves MAN11360-8 Race Flo, 5/16" 2.000" 4.874" 8 MAN11362-8 Race Master, 5/16" 2.020" 4.874" 8 MAN11620-8 Pro Flo, .3133" 2.165" 4.900" 8 LS3 Severe Duty And Extreme Duty Exhaust Valves MAN11661-8 Severe Duty Pro Flo, .3136" 1.590" 4.923" 8 Intake Valves MAN11686-8 Severe Duty Pro Flo, .3133" 2.165" 4.900" 8 LS7 Exhaust Valves MAN11679-8 Severe Duty Pro Flo, .3136" 1.610" 5.230" 8 MAN11687-8 Extreme Duty, .3136" 1.610" 5.230" 8 Intake Valves MAN11688-8 Severe Duty Pro Flo, .3136" 2.205" 5.200" 8 Note: Most of the above valves are available each. Simply replace -8 with a -1 for a single valve. Diameter Length
2018 ENGINE BUILDER CATALOG
197
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