Big Block Chevrolet Black Lightning Racing Valves

QualCast

Black Lightning Racing valves are forged from premium 21-4N stainless steel. They have undercut steps and swirl polished heads to help the flow of both fuel and exhaust gasses going into and exiting the engine combustion chamber. The heads are also designed with thinner margins to reduce weight and inertia.

These valves also feature a unique nitride coating that is better than chrome for higher revving race engines. They produce less friction, have exceptional wear resistance and increased strength and ductility.

Black Lightning Racing Valves are sold in matched sets of 8. To order the full set, be sure to enter 8 for the quantity.

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Order No. Description Price Quantity
77-173003 Exhaust | 1.725" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.350" OAL $9.69
77-188001 Exhaust | 1.880" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.350" OAL $10.15
77-188003 Exhaust | 1.880" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.350" OAL $10.15
77-188101 Exhaust | 1.880" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.450" OAL | NOTE; +100 $9.98
77-207003 Intake | 2.065" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.220" OAL $10.25
77-219003 Intake | 2.190" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.220" OAL $10.24
77-225003 Intake | 2.250" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.220" OAL $10.34
77-225101 Intake | 2.250" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.320" OAL | NOTE: +100 $10.60
77-225251 Intake | 2.250" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.470" OAL | NOTE: +250 $10.60
77-230101 Intake | 2.300" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.320" OAL | NOTE: +100 $10.60
77-230251 Intake | 2.300" Head Dia. | 0.34710" Stem Dia. | 0.220" Tip | 5.470" OAL | NOTE: +250 $10.30
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