Headers & Engine Accessories
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Header Collector, 2-1/2 in. Inlet x 5 in. Outlet
Quarter-Max
$295.99Header CollectorSpecifications:• Inlet: 2-1/2 in.• Outlet: 5 in.• Length: 15 in.QM-0231$295.99 -
$77.99 -
$3.99 -
K&N Pro Stock Induction Package
K&N
$2,349.99This item will have a discounted oversize fee of $100.00 when shipped via ground delivery to the contiguous 48 United States.• Designed to fit NHRA Pro Stock cars• Made from ultra-lightweight carbon fiber• Includes 2 carbon fiber intake...K&N-100-8522$2,349.99 -
Merge Collector, 2-3/8" Inlet, 4-1/2" Outlet
Quarter-Max
$295.99Merge CollectorSpecifications:• Inlet: 2-3/8"• Outlet: 4-1/2"• Length: 14-1/2"QM-0232$295.99 -
Mild Steel Chassis Header Kit
Quarter-Max
$949.99Big Block Chevy 4.840” bore center Mild Steel 3/8” thick flanges Primary tube size 2-1/4” and 2-3/8” or 2-3/8” and 2-1/2” available Megaphone merge collectors 3-1/2” to 4-1/2” X 14-1/2”...QM-214509$949.99 -
Mr. Gasket Ultra-Seal Header Gasket, BBC, 2.40 in.
Mr. Gasket
$44.09Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block. Round Ports, 2.40 Inch Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure...MRG-5914$44.09 -
NHRA Pro Stock K&N Air Inlet Opening Flange
Quarter-Max
$37.99NHRA Pro Stock K&N Air Inlet Opening FlangeSpecifications:• Material: 5052 aluminum• Thickness: .050"QM-430020$37.99 -
NHRA Pro Stock K&N Air Inlet Template
Quarter-Max
$49.99NHRA Pro Stock K&N Air Inlet TemplateSpecifications:• Material: 5052 aluminum• Thickness: .050"QM-430021$49.99 -
O2 Bung Plug
Quarter-Max
$11.99This is a O2 sensor plug that you can use to plug your old O2 sensor bung if it not in use.QM-219306-1$11.99 -
O2 Sensor Stainlesss Weld-In Bung
Quarter-Max
$14.99When welded in place, this bung provides a place to mount O2 sensor.QM-219306$14.99 -
Oil Absorbent Pad
Quarter-Max
$3.49Line your diaper or containment device with this absorbent pad. We suggest using (two) pads per application.QM-660015$3.49 -
Oil Filter Mount Kit
Quarter-Max
$62.99Our new oil filter mount makes supporting your remotely installed oil filter easy. Simply attach the mount to your firewall or motorplate and secure the oil filter with the included band clamp.QM-201116A$62.99 -
QM -20 FKM O-Ring for Wiggins Bung
Quarter-Max
$3.04Viton O-Ring for -20 Wiggins Bung Sold EachQM-420620-5$3.04 -
QM -20 Wiggins Clamshell Coupler for 1-1/4" Hose, Black Anodized Aluminum
Quarter-Max
$84.99This -20 Wiggins clamshell coupler, made from black anodized aluminum, is designed exclusively for 1-1/4" hoses. It's ideal for use with valve covers and blower back breather tubes. Sold individually.QM-420620-6$84.99 -
QM -20 Wiggins Clamshell Coupler, Black Anodized Aluminum
Quarter-Max
$89.99This black anodized aluminum Wiggins coupler is designed for -20 (1-1/4" tube) applications, perfect for creating custom valve cover or blow-back tube bungs and fittings. Sleeve not included. Sold individually.QM-420620-1$89.99 -
QM -20 Wiggins Weld-On Bung, Aluminum
Quarter-Max
$49.83This is a -20 AN aluminum weld-on bung, featuring a double O-ring design for secure and leak-free connection with Wiggins-style clamps and hoses. • Material: Aluminum• Size: 1-1/4" Sold individually.QM-420620-4$49.83 -
QM 1-1/2 in. ID Wire Reinforced Fuel Hose, Black
Quarter-Max
$19.50Ensure secure and long-lasting fuel delivery with this robust, wire-reinforced fuel hose. Ideal for the vital link between your fuel cell and pump, it offers exceptional durability. Specifications:• 1-1/2 in. ID• Color: Black• Material:...QM-219562-1$19.50 -
QM 1-1/4 in. ID Wire Reinforced Fuel Hose, Black
Quarter-Max
$18.99Ensure secure and long-lasting fuel delivery with this robust, wire-reinforced fuel hose. Ideal for the vital link between your fuel cell and pump, it offers exceptional durability. Specifications:• 1-1/4 in. ID• Color: Black• Material:...QM-219562$18.99 -
QM 1-1/4 Male Nipple Tube Hose Connector, Black Anodized Aluminum
Quarter-Max
$56.95-20 Male Hose connector for Wiggins fitting, black anodized aluminum • Hose Size: 1-1/4" Sold individually.QM-420620-3$56.95 -
QM BBC Side Exit Headers
Quarter-Max
$1,649.99Big Block Chevy 4.840” bore spacing 12 Degree Profiler type head, Dart big chief, CFE “Primary tube size 2 1/2” O.D. 20-22” long “ Collector size 5” O.D. Headers come uncoated” Designed to fit most strut...QM-214503$1,649.99 -
QM Collector Tether Replacement Metal Lock Nut
Quarter-Max
$0.79These are the replacement lock nuts for the QM Collector Tether System part#214514 10-32 metal to metal lock nut. This lock nut does not have nylon inside. Sold EachAN363-1032$0.79 -
QM Engine Sling, 30 in. Straps
Quarter-Max
$189.99Remove your engine with ease! This handy engine sling makes removing engines easier. Simply hang from your engine puller and bolt to the header studs. Strap lengths available in 22 in. for carbureted motors and 30 in. for blower motors...QM-110201$189.99 -
QM Quick Connect Chassis Fitting, Wiggins Style
Quarter-Max
$84.99Quick Connect Chassis Fitting, Wiggins Style notched to fit 1-3/8" tube. Tired of complicated blow-back solutions? Upgrade your vehicle with our innovative Wiggins Style Quick Connect Chassis Fitting and cleverly convert your existing chassis tube into...QM-420620$84.99 -
QM Spark Plug Holder - 16 Plug, Quarter-Max
Quarter-Max
$35.99This Spark Plug Holder will hold your sixteen spark plugs when you take them out of your engine. There's an "F" cut in the design to designate the front of the engine. • Quarter-Max logoQM-219869$35.99 -
QM Spark Plug Holder - 8 Plug, Quarter-Max
Quarter-Max
$29.99This Spark Plug Holder will hold your eight spark plugs when you take them out of your engine. There's an "F" cut in the design to designate the front of the engine. • Quarter-Max logoQM-219868$29.99 -
QM Weld Bung, -12 AN Male, Mild Steel
Quarter-Max
$12.99Weld Bung, -12 AN Male, Mild SteelSpecifications:• Thread: -12 AN• Material: Mild steelCommon applications: dry sump tank, fuel systems.Sold individually.QM-219312$12.99 -
On Sale
QM Weld On Collector Tether System
Quarter-Max
Retail: $95.99Now: $90.99Was: $95.99The Quarter-Max Weld-On Tether System is NHRA accepted for the new NHRA Collector Tether rule for 2014 requiring all slip-on Header Collectors for all classes in the NHRA to be tethered. Quarter-Max Weld-on Tether System: Each kit will do one pair of...QM-214514-1Retail: $95.99Now: $90.99Was: $95.99 -
Quarter-Max Mild Steel Pro Step Headers
Quarter-Max
$1,649.99Designed to fit most tube chassis cars with big block Chevy 4.840" bore spacing 3/8” thick mild steel flanges 2-1/4” to 2-3/8” step primary tube size option comes with 3-1/2” to 4-1/2” megaphone merge...QM-214502 | QM-214502-1$1,649.99 -
On Sale
Quarter-Max Pro Dragster Step Headers
Quarter-Max
Retail: $1,449.99Now: $1,300.00Was: $1,649.99CUSTOM BUILT MILD STEEL BBC DRAGSTER STEP HEADERS 3/8" thick mild steel flanges 2-1/4"-2-3/8" Step primary tube size approximately 31" long 3-1/2" to 4-1/2" megaphone merge collector. Gaskets header flange bolts not included. Headers come uncoated...QM-214505Retail: $1,449.99Now: $1,300.00Was: $1,649.99 -
Quarter-Max Stainless Steel Pro Step Headers
Quarter-Max
$3,639.99Designed to fit most tube chassis cars with big block Chevy 4.840" bore spacing 5/16" stainless steel flanges 2-1/4” to 2-3/8” step primary tube size option comes with 3-1/2” to 4-1/2” megaphone merge collector 2-3/8" to...QM-214506 | QM-214507$3,639.99 -
Spark Plug Billet Indexer
Quarter-Max
$269.99This billet stainless steel indexer is machined with numbers for marking the position of the ground electrode. The indexer is knurled for hand held use, or can be secured in a vise on the machined flats. It has two threaded holes on the side of the...QM-219857$269.99 -
Spark Plug Holder
Quarter-Max
$24.99This Spark Plug Holder will hold your eight spark plugs when you take them out of your engine. Made from .063” aluminum. There's an "F" cut in the design to designate the front of the engine.The plugs rest in rubber grommets to help keep them from...QM-219807$24.99 -
Spark Plug Holder Tray
Quarter-Max
$199.99This plug organizer allows you to store 192 indexed spark plugs at one time. This is designed to work with our spark plug indexer part number #219857. It has 24 different index locations and will store up to qty-8 plugs for each index a total of 192...QM-219862$199.99 -
Spark Plug Indexing Block
Quarter-Max
$44.99Index your spark plugs quickly and easily with our aluminum plug indexing block.QM-420413$44.99 -
Spark Plug Light
Quarter-Max
$119.99Check your spark plugs with this handy tool. Illumination and magnification allows the spark plug base circle to be viewed clearly. Soft zippered storage case keeps the tool protected when not in use.QM-110101$119.99 -
Spark Plug Organizer
Quarter-Max
$87.99Now you can keep your spark plugs organized like a pro. Our new Spark Plug Indexing Kit gives you 20 labeled compartments for your plugs (not included) and one large compartment to store your engraver (not included), indexing block and blue marker...QM-219808$87.99 -
Spark Plug T-Handle Wrench
Quarter-Max
$59.99Our t-handle spark plug tool features a 5/8" swivel head socket on a 19" long bar. The t-handle is marked for easy indexing of the electrode location. This tool allows you to get to the plugs of your door car without leaning over the fenders or...QM-219827$59.99 -
$135.99 -
Stainless Steel Spring
Quarter-Max
$6.99This spring attaches to the header collectors 1/2" x 3" free. Length is 3" with max length of 4.440”QM-0228$6.99