STREET PERFORMANCE /COMPETITION VALVES
LS Series AFR - Air Flow Research Replacement Valves Part No. Description Diameter
Length
Qty.
Exhaust Valves AFR7228 Intake Valves AFR7207
Mongoose LS1, 8mm/0.314" Valve Stem 1.600"
4.900"
1
LSX, 8mm/0.314" Valve Stem LSX, 8mm/0.314" Valve Stem
2.020" 2.080"
4.900" 4.900"
1 1
AFR7208
Chevrolet Performance Part No.
Description
Diameter
Length
Qty.
Exhaust Valves GMP12591644 Stock Replacement LS7, 8mm Valve Stem 2.200"
5.230"
1
Intake Valves GMP12618110
Stock Replacement LS7, Sodium-Filled, 8mm Valve Stem
1.610"
5.230"
1
Ferrea Part No.
Description
Diameter
Length
Qty.
LS1/LS6 6000 Series Competition Valves Exhaust Valves FERF6232-8 Comp 6000/LS1Corvette, 5/16" Valve Stem 1.550"
4.915"
8
Comp 6000/LS1 Corvette, 5/16" Valve Stem, Super Flo
FERF6233-8
1.600"
4.915"
8
FERF6235-8 FERF6267-8
5/16" Valve Stem
1.600" 1.600"
4.915" 5.015"
8 8
Comp 6000/LS1, 5/16" Valve Stem
Intake Valves FERF6230-8 Comp 6000/LS1 Corvette, 5/16" Valve Stem FERF6231-8 Comp 6000/LS1 Corvette, 5/16" Super Flo FERF6234-8 Comp 6000/LS1 Corvette, 5/16" Valve Stem
2.000" 2.020" 2.055" 2.080"
4.900" 4.900" 4.900" 5.000"
8 8 8 8
FERF6268-8
Comp 6000/LS1, 5/16" Valve Stem
LS1 Competition Plus Exhaust Valves FERF1892P-8
Comp Plus, 24° Turbo -.313" Valve Stem
1.600"
4.915"
8
LS3 6000 Series Competition Valves Exhaust Valves FERF6235-8
Comp 6000/LS3, 5/16" Valve Stem, 24° Tulip Super Flo
1.600"
4.915"
8
Intake Valves FERF6279-8 Comp 6000/LS3, 5/16" Valve Stem Super Flo
2.165"
4.900"
8
LS7 Competition Plus Exhaust Valves FERF1597P-8
Comp Plus, 24° Turbo, .310" Valve Stem Comp Plus, 15° Turbo, .310" Valve Stem
1.615" 1.615"
5.227" 5.227"
8 8
FERF1598P-8
Intake Valves FERF2014P-8
Comp Plus, Hollow Stem Backcut Special Alloy, .3135" Valve Stem
2.200"
5.180"
8
L92 Competition Plus Intake Valves FERF2010P-8
Comp Plus, Hollow Stem Backcut Special Alloy, .3135" Valve Stem
2.200"
5.180"
8
Most of the above valves are available each. Simply replace -8 with a -1 for a single valve.
161
2021-22 ENGINE BUILDER CATALOG
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