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Holley LS Engine Oil Fill Caps
These Holley LS engine oil fill caps are designed to remove the factory oil fill tube on LS engines and replace it. They are manufactured from glass-filled material to ensure durability. The Holley LS engine oil fill caps include a billet aluminum insert that can easily be painted or powdercoated and a domed Holley decal that can be placed in the insert or directly on the caps' base. The caps screw directly into all stock valve covers and fill tubes on LS2, LS3, LS7, LS9, and LSA engines.
( 2 )
$18.23
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$44.79
Holley Sniper Engine Oil Fill Caps
Holley Sniper engine oil fill caps provide function and style. Designed for Holley's popular fabricated valve cover kits, the caps are available in two styles—smooth top with knurled edge or a more traditional look with finger notches. Available in black or silver, all caps offer a good grip and a fresh appearance under your hood. Choose the style and finish you prefer.
Not Yet Reviewed
$33.48
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$35.90
Holley Bolt-On Fill Cap Kits
Holley bolt-on fill cap kits allow you to put a fill cap or inspection plug anywhere they're needed. These particular kits make a great alternative to a stock fuel cell cap—or if you need a fill cap for that custom oil tank or valve covers you're building. Holley bolt-on fill cap kit additional features include: * CNC-machined from 6061 T-6 billet aluminum * Bright black anodized finish for corrosion protection * 2.17 in. 4-bolt style flange * Cap features a laser-etched "Holley Equipped" logo * Bolt-on fill cap with an O-ring seal (has 1.38 in. diameter opening) * Easy-to-grip screw-on cap * Thread 1 1/2 in.-12 * Stainless steel hardware included
( 6 )
$90.45
Holley Valve Cover Breather Caps
These great looking Holley valve cover breather caps are a great way to top-off your valve covers. They're available with or without a tube.
( 5 )
$27.28
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$40.20
On Sale
Holley Aluminum LS Valve Covers
Holley aluminum LS valve covers will give your Chevrolet LS Series engines a totally new look. Manufactured from cast aluminum, they come in four different finishes, and feature a billet aluminum oil fill cap. Some valve covers in this series eliminate the need for the factory ignition coil bracket. Instead, the coils bolt directly to the valve covers for a nice angled look! Holley aluminum LS valve covers reuse the factory gaskets and bolts, will work with .750 in. lift camshafts using stock-style rocker arms, and fit all ignition coils with 72mm spacing.
( 147 )
$799.95
$260.10
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$870.95
On Sale
Holley Muscle Series Valve Covers
Holley Muscle Series valve covers are a blast from the past inspired by 1970s-era GM factory L82/LT1/Z28-equipped engines. They fill your desire with the iconic finned design and retro styling cues. You can choose from four finishes to best match your small block. Order the pair recommended for your year/make and engine application. Product features include: * Cast aluminum construction and fin design create strength and rigidity to offer years of leak-free performance * Standard height * Twist-in oil fill knockout (cap included) on one cover * Recessed area to place the included adhesive-backed Holley emblem or any round emblem of your choice on the other cover * Pre-installed internal oil baffles on both covers * PCV grommets
( 34 )
$383.95
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$460.95
$345.55
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$413.95
On Sale
Holley LS Pontiac-Style Valve Covers
Holley modular LS Pontiac-style valve covers feature an OE height, internally-baffled base with integrated coil mounts for popular Gen I and Gen V-style LS coil bodies. The overcovers hide the unsightly LS coils and messy wiring harness—allowing the full performance benefits of coil-on-cover ignition setups without the robotic styling. Each modular coil cover features a simulated oil fill cap which helps maintain the original Pontiac styling. The coil cover also features cast-in provisions for the spark plug boots and coil wiring harness, so no extensions or custom wiring is required. Holley's 2-piece LS Pontiac-style valve covers offer 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! More product features and items include: * Available in various finishes * Base fits LS1, LS2, LS3, LS6, and LS7 engines with clearance for 0.750 in. lift cam with stock style rocker arms * Base features internally baffled ventilation system * Each 2-piece LS valve cover set includes a low-profile billet oil fill cap, 2 billet simulated fill cap assemblies, hardware, and spacers for mounting both versions of LS coil bodies * Dress-up hardware and rubber grommets for the coil covers
( 1 )
$599.95
$538.95
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$614.95
On Sale
Holley 2-Piece Ford Style Valve Covers
Holley's 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 Ford style overcover that hides the unsightly LS coils and messy wiring harness. This allows the full performance benefits of coil-on-cover ignition setups without the robotic styling. These coil covers also feature cast-in provisions for the spark plug boots and coil wiring harness, so no extensions or custom wiring is required. Each 2-piece LS valve cover set includes a low-profile billet oil fill cap, hardware and spacers for mounting both versions of LS coil bodies, plus dress-up hardware and rubber grommets for the coil covers. The modular LS valve covers are available in three custom finishes: natural cast, polished, and satin black. Features: * Cast aluminum 2-piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies * Retain the performance of factory coil-on-cover ignition without the unsightly styling * Coil cover features vintage Ford valve cover styling and cast-in wiring provisions * Base fits LS1, LS2, LS3, LS6 and LS7 engines with clearance for .750 in. lift cam with stock-style rocker arms * Base features internally baffled ventilation system * No coil relocation, wire harness extensions, or custom spark plug wires required * Includes low-profile billet oil fill cap * Includes all necessary coil mounting provisions and dress-up hardware
Not Yet Reviewed
$587.95
$459.95
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$528.95
On Sale
Holley Ford 7.3L Godzilla Rear Block Plug Kits
Some engine swaps and racing applications do not need the heater, but elimination of the heater is difficult on the 7.3-liter Godzilla engine since the hose inlet and outlet passages are tough to plug and look like a cobbled up mess using traditional hoses, clamps, and plugs. Holley Ford 7.3L Godzilla rear block plug kits include a machined steel billet plug with O-ring seal, mounting bracket, and retaining bolt to block off the rear port with a professional look. Features: * Works with Holley's front/heater block-off kit to block all cooling ports * The plug is designed to handle high pressure and high temperatures--typical conditions of the cooling system * Easy installation without the need to tap holes or fabricate special plugs and caps * Steel plug features a clear zinc-plated finish
Not Yet Reviewed
$19.49
$10.99
On Sale
Holley LS Valley Covers
Holley LS valley covers are the latest accessories offered for the GM LS engine platform. These covers install between the two banks of cylinder heads, depending on your usage of knock sensors, displacement on demand, and active fuel management. They're available in a cast aluminum finned design to match Holley's popular valve covers, as well as a billet aluminum trussed version for a race-inspired look. The valley pan covers are offered in a variety of finishes.
( 2 )
$279.95
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$293.95
