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more_vert241-174 | 2-PIECE CAST ALUM. V/C, GLOSS RED FINISH
$656.00$589.95

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241-174 | 2-PIECE CAST ALUM. V/C, GLOSS RED FINISHclose

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage finned overcover that hides the unsigh..

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more_vert241-180 | 2-PIECE CAST ALUM. V/C, NATURAL FINISH
$600.00$539.95

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241-180 | 2-PIECE CAST ALUM. V/C, NATURAL FINISH close

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the u..

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more_vert241-181 | 2-PIECE CAST ALUM. V/C, POLISHED FINISH
$734.00$659.95

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241-181 | 2-PIECE CAST ALUM. V/C, POLISHED FINISH close

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the u..

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more_vert241-182 | 2-PIECE CAST ALUM. V/C,SATIN BLK FINISH
$634.00$569.95

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241-182 | 2-PIECE CAST ALUM. V/C,SATIN BLK FINISH close

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the u..

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more_vert241-183 | 2-PIECE CAST ALUM. V/C,FACT ORNG FINISH
$634.00$569.95

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241-183 | 2-PIECE CAST ALUM. V/C,FACT ORNG FINISH close

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the u..

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more_vert241-184 | 2-PIECE CAST ALUM. V/C,GLOSS RED FINISH
$634.00$569.95

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241-184 | 2-PIECE CAST ALUM. V/C,GLOSS RED FINISH close

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the u..

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more_vert241-209 | BREATHER CAP,CHRM HOLLEY
$21.06$18.95

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241-209 | BREATHER CAP,CHRM HOLLEYclose

Universal without tubeFeatures:Universal Breather CapBrandHolleyEmission Code5FinishChromeMaterialStamped SteelProduct TypeValve Cover BreatherPart Number241-209..

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more_vert241-213 | BREATHER CAP,CHROME
$33.28$29.95

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241-213 | BREATHER CAP,CHROMEclose

Universal with tubeFeatures:Breather CapBrandHolleyEmission Code5FinishChromeMaterialStamped SteelProduct TypeValve Cover BreatherPart Number241-213..

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more_vert241-225 | BILLET FILL CAP W/O-RING FOR 241-88, -89
$27.72$24.95

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241-225 | BILLET FILL CAP W/O-RING FOR 241-88, -89close

Replacement billet aluminum oil fill cap for Holley LS valve covers part #'s 241-88, 241-89, 241-90 and 241-91.Features:Qty of 1Includes O-ringBrandHolleyEmission Code5Product TypeValve Cover AccessoriesThread1-5/16" -12Type of ComponentFill CapPart Number241-225..

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more_vert241-226 | BILLET FUEL CELL CAP W/6 BOLT FLANGE - H
$125.00$111.95

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241-226 | BILLET FUEL CELL CAP W/6 BOLT FLANGE - Hclose

Looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley caps are CNC machined from 6061-T6 billet aluminum and they feature a bright black anodize for great looks and corrosion protection. Each cap features..

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more_vert241-227 | BILLET FUEL CELL CAP W/12 BOLT FLANGE -
$154.00$137.95

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241-227 | BILLET FUEL CELL CAP W/12 BOLT FLANGE - close

Looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley caps are CNC machined from 6061-T6 billet aluminum and they feature a bright black anodize for great looks and corrosion protection. Each cap features..

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more_vert241-228 | BILLET FILL CAP W/ALUM WELD BUNG- HOLLEY
$49.94$44.95

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241-228 | BILLET FILL CAP W/ALUM WELD BUNG- HOLLEYclose

Looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley caps are CNC machined from 6061-T6 billet aluminum and they feature a bright black anodize for great looks and corrosion protection. Each cap features..

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more_vert241-229 | BILLET FILL CAP W/STEEL WELD BUNG- HOLLE
$49.94$44.95

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241-229 | BILLET FILL CAP W/STEEL WELD BUNG- HOLLEclose

Looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley caps are CNC machined from 6061-T6 billet aluminum and they feature a bright black anodize for great looks and corrosion protection. Each cap features..

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more_vert241-230 | BILLET FILL CAP W/ 4 BOLT FLANGE- HOLLEY
$73.58$66.22

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241-230 | BILLET FILL CAP W/ 4 BOLT FLANGE- HOLLEYclose

Looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley caps are CNC machined from 6061-T6 billet aluminum and they feature a bright black anodize for great looks and corrosion protection. Each cap features..

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more_vert241-362 | VALLEY COVER TRUSSED SATN BLK W/OIL FILL
$256.00$229.95

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241-362 | VALLEY COVER TRUSSED SATN BLK W/OIL FILLclose

Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern, trussed design with an integrated oil fill neck and billet oil fill cap, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are mac..

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more_vert241-367 | VALLEY COVER TRUSSED NATURAL W/OIL FILL
$228.00$204.95

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241-367 | VALLEY COVER TRUSSED NATURAL W/OIL FILLclose

Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern, trussed design with an integrated oil fill neck and billet oil fill cap, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are mach..

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more_vert241-369 | VALLEY COVER TRUSSED SATN BLK W/OIL FILL
$256.00$229.95

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241-369 | VALLEY COVER TRUSSED SATN BLK W/OIL FILLclose

Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern, trussed design with an integrated oil fill neck and billet oil fill cap, these LS valley covers are the perfect upgrade for your LS engine if you are looking for a subtly custom touch. These valley covers are mach..

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more_vert2480-1HKR | G-BODY, 1-3/4 MID-LGTH LS-SWAP HEADER, C
$704.00$632.95

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1978-88 GM A/G-Body (Monte Carlo/Malibu/El Camino/Cutlass/Grand Prix/Regal/Bonneville), Mid-Length LS-Swap, 1-3/4", Collector Size 2-1/2"Features:For GM LS engine swaps into 1978-88 GM A/G-Body vehicles1-3/4" primary tube diameter and 2-1/2" collector diameter ideal for stock LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swapsMid-length design for optimum ground clearanceMild steel construction wit..

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more_vert2481-1HKR | G-BODY, 1-7/8 MID-LGTH LS-SWAP HEADER, C
$713.00$640.95

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1978-88 GM A/G-Body (Monte Carlo/Malibu/El Camino/Cutlass/Grand Prix/Regal/Bonneville), Mid-Length LS-Swap, 1-7/8", Collector Size 3"Features:For GM LS engine swaps into 1978-88 GM A/G-Body vehicles1-7/8" primary tube diameter and 3" collector diameter ideal for "hot" LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swapsMid-length design for optimum ground clearanceMild steel construction with silver..

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more_vert2481-3HKR | G-BODY, 1-7/8 MID-LGTH LS-SWAP HEADER, D
$713.00$640.95

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2481-3HKR | G-BODY, 1-7/8 MID-LGTH LS-SWAP HEADER, Dclose

1978-88 GM A/G-Body (Monte Carlo/Malibu/El Camino/Cutlass/Grand Prix/Regal/Bonneville), Mid-Length LS-Swap, 1-7/8", Collector Size 3"Features:For GM LS engine swaps into 1978-88 GM A/G-Body vehicles1-7/8" primary tube diameter and 3" collector diameter ideal for "hot" LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swapsMid-length design for optimum ground clearanceMild steel construction with black ..