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
QC77173003 Exhaust | 1.725" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.350" OAL | 77-173003 $14.64
QC77188001 Exhaust | 1.880" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.350" OAL | 77-188001 $15.47
QC77188003 Exhaust | 1.880" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.350" OAL | 77-188003 $15.19
QC77188101 Exhaust | 1.880" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.450" OAL | NOTE; +100 | 77-188101 $15.47
QC77207003 Intake | 2.065" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.220" OAL | 77-207003 $15.59
QC77219003 Intake | 2.190" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.220" OAL | 77-219003 $15.47
QC77225003 Intake | 2.250" Head Dia. | 0.3710" Stem Dia. | 0.220" Tip | 5.220" OAL | 77-225003 $15.75
QC77225101 Intake | 2.250" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.320" OAL | NOTE: +100 | 77-225101 $15.75
QC77225251 Intake | 2.250" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.470" OAL | NOTE: +250 | 77-225251 $16.04
QC77230101 Intake | 2.300" Head Dia. | 0.3410" Stem Dia. | 0.220" Tip | 5.320" OAL | NOTE: +100 | 77-230101 $16.04
QC77230251 Intake | 2.300" Head Dia. | 0.34710" Stem Dia. | 0.220" Tip | 5.470" OAL | NOTE: +250 | 77-230251 $15.19
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