Headers & Engine Accessories
Maximize your horsepower and keep your powerplant secure with premium headers and engine accessories from Quarter-Max. We carry custom drag racing exhaust headers, collector kits, motor plates, engine mounts, and accessories designed to withstand the extreme demands of high-horsepower race cars.
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QM Clear Vacuum Hose
Quarter-Max
$7.86 - $8.39Our vacuum hose has the spring molded into the hose, providing a free flowing (smooth) bore that won't collapse. Additionally, use of this clear hose allows for a quick visual inspection of what is...QM-219525$7.86 - $8.39 -
QM Collector Tether Replacement Metal Lock Nut
Quarter-Max
$0.83These 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$0.83 -
QM Dry Sump Tank Mount, Titanium
Quarter-Max
$824.25Simplify your installation with our titanium dry sump tank mount. This mount can be welded directly to your fuel cell mount, depending on the material. If the fuel cell mount is constructed of 4130,...QM-213205$824.25 -
QM EGT Weld-In Bung
Quarter-Max
$11.22When welded in place, bung provides a place to mount your EGT sensor.QM-219307$11.22 -
QM EGT Weld-In Bung, Stainless Steel
Quarter-Max
$16.54Stainless Steel EGT Weld In Bung.QM-219307-1$16.54 -
QM Engine Sling, 22 in. Straps
Quarter-Max
$188.99Remove 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...QM-110200$188.99 -
QM Engine Sling, 30 in. Straps
Quarter-Max
$199.49Remove 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...QM-110201$199.49 -
QM Exhaust Cover DRCE
Quarter-Max
$25.19Keep dirt and debris from getting in the exhaust ports of your engine and causing costly repairs. Designed to fit 9.800 bore spacing DRCE cylinder heads. Material 1/4” 6061-T6 aluminum. Sold each.QM-430259$25.19 -
QM Header Collector, 2-1/2 in. Inlet x 5 in. Outlet
Quarter-Max
$310.79Header CollectorSpecifications:• Inlet: 2-1/2 in.• Outlet: 5 in.• Length: 15 in.QM-0231$310.79 -
$81.89 -
$4.19 -
QM Merge Collector, 2-3/8" Inlet, 4-1/2" Outlet
Quarter-Max
$310.79Merge CollectorSpecifications:• Inlet: 2-3/8"• Outlet: 4-1/2"• Length: 14-1/2"QM-0232$310.79 -
QM Mild Steel Chassis Header Kit
Quarter-Max
$997.49Big 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$997.49 -
QM NHRA Pro Stock K&N Air Inlet Opening Flange
Quarter-Max
$39.89NHRA Pro Stock K&N Air Inlet Opening FlangeSpecifications:• Material: 5052 aluminum• Thickness: .050"QM-430020$39.89 -
QM NHRA Pro Stock K&N Air Inlet Template
Quarter-Max
$52.49NHRA Pro Stock K&N Air Inlet TemplateSpecifications:• Material: 5052 aluminum• Thickness: .050"QM-430021$52.49 -
QM O2 Bung Plug
Quarter-Max
$12.59This is a O2 sensor plug that you can use to plug your old O2 sensor bung if it not in use.QM-219306-1$12.59 -
QM O2 Sensor Stainlesss Weld-In Bung
Quarter-Max
$15.74When welded in place, this bung provides a place to mount O2 sensor.QM-219306$15.74 -
QM Oil Absorbent Pad
Quarter-Max
$3.66Line your diaper or containment device with this absorbent pad. We suggest using (two) pads per application.QM-660015$3.66 -
QM Oil Filter Mount Bracket for Clear View Oil Filters
Quarter-Max
$17.84Take the guesswork out of mounting your filtration system with our precision-engineered 4130 Chromoly Oil Filter Mount. Designed specifically for compatibility with Clear View Oil Filters, this...QM-411274$17.84 -
QM Oil Filter Mount Kit
Quarter-Max
$66.14Our 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$66.14 -
QM Quick Connect Chassis Fitting, Wiggins Style
Quarter-Max
$89.24Quick 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...QM-420620$89.24 -
QM Spark Plug Billet Indexer
Quarter-Max
$283.49This 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...QM-219857$283.49 -
QM Spark Plug Holder
Quarter-Max
$26.24This 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...QM-219807$26.24 -
QM Spark Plug Holder - 16 Plug, Quarter-Max
Quarter-Max
$37.79This 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$37.79 -
QM Spark Plug Holder - 8 Plug, Quarter-Max
Quarter-Max
$31.49This 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$31.49 -
QM Spark Plug Holder Tray
Quarter-Max
$209.99This 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...QM-219862$209.99 -
QM Spark Plug Indexing Block
Quarter-Max
$47.24Index your spark plugs quickly and easily with our aluminum plug indexing block.QM-420413$47.24 -
QM Spark Plug Light
Quarter-Max
$125.99Check 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$125.99 -
QM Spark Plug T-Handle Wrench
Quarter-Max
$62.99Our 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...QM-219827$62.99 -
QM Stainless Steel Header Flange
Quarter-Max
$142.795" Bore 2.5" Tube Size 5/16" ThickQM-410784-5S$142.79 -
QM Stainless Steel Spring
Quarter-Max
$7.34This spring attaches to the header collectors 1/2" x 3" free. Length is 3" with max length of 4.440”QM-0228$7.34 -
QM Trim to Fit Flame Aluminum Body Exhaust Ring Kit
Quarter-Max
$35.69Body exhaust rings, also referred to as body exhaust flanges, provide a professional, finished look while protecting the paint & body around the side exit headers. Trim to fit your application...QM-219430$35.69 -
QM Universal Aluminum Body Exhaust Ring Kit
Quarter-Max
$32.54Body exhaust rings, also referred to as body exhaust flanges, provide a professional, finished look while protecting the paint & body around the side exit headers. Trim to fit your application...QM-219431$32.54 -
QM Weld Bung, -12 AN Male, Mild Steel
Quarter-Max
$13.64Weld Bung, -12 AN Male, Mild SteelSpecifications:• Thread: -12 AN• Material: Mild steelCommon applications: dry sump tank, fuel systems.Sold individually.QM-219312$13.64 -
On Sale
QM Weld On Collector Tether System
Quarter-Max
Retail: $100.79Now: $95.54Was: $100.79The 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...QM-214514-1Retail: $100.79Now: $95.54Was: $100.79 -
QM Zoomie Header Aluminum Body Exhaust Flange Kit
Quarter-Max
$30.44This body exhaust flange provides a professional, finished look while protecting the paint & body around the side exit headers or zoomies. Includes hardware.Specifications:• Style: Zoomie header•...QM-219432$30.44 -
Quarter-Max Mild Steel Pro Step Headers
Quarter-Max
$1,732.49Designed 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...QM-214502 | QM-214502-1$1,732.49 -
On Sale
Quarter-Max Pro Dragster Step Headers
Quarter-Max
Retail: $1,522.49Now: $1,365.00Was: $1,732.49CUSTOM 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...QM-214505Retail: $1,522.49Now: $1,365.00Was: $1,732.49 -
Quarter-Max Stainless Steel Pro Step Headers
Quarter-Max
$3,821.99Designed 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...QM-214506 | QM-214507$3,821.99 -
Retail: $15.74$13.99