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• Throttle Return Spring Kit
• 2300/4100 Holley® Series, Road, Speed, Race Demon Series Carb Mounts
• The answer to your throttle return spring linkage problems if you're running a 2300/2305 series two-barrel or 4150/4160 series 4-barrel Holley® or Road, Speed, Race Demon™ carburetor
• Designed and built rugged enough for competition, yet its polished chrome finish is suitable for the finest show car
• Includes one set of heavy and one set of light springs

Manufactured from rugged Grade 8 steel to withstand the extreme loading placed on today's racing tires
Self-tapping screws feature a built-in washer face for maximum holding strength.

• Wheel Rim Screws 1/4" Diameter X 3/4" Length
• Finished in gold iridite
• Use with 3/8" Socket
• Sold 35/Package
• NOTE: Drill Wheels with 13/64" drill bit - do not drill oversize

• Weld-in bung for adding sensor bung to aftermarket pipes, headers, etc.
• M-18 by 1.5 Thread Size
• 1 Per Pack

• Oil Bypass Eliminator, SBC, BBC (except Gen V and Gen VI)
• Designed to eliminate the oil bypass found on Chevrolet engines
• Does not allow unfiltered oil back into the engine
• A stock type spin-on oil filter can be used with this part installed
• Machined from billet aluminum for strength
• Features a single inlet and easy two bolt installation

• Heavy duty to allow repeated use with a fastener tool allen wrench or a ratchet without stripping
• A larger size distributes the load over a larger area to avoid pull-though
• The spring holds the button captive so that it can't be dropped underneath the car or into some hard-to-get-at area of the chassis
• A necessity for quick pit work in racing
• Use with Spring Nos. 71400, 71410, 71420, 71425 or 71430
• Ten per package

• Heavy duty to allow repeated use with a fastener tool allen wrench or a ratchet without stripping
• A larger size distributes the load over a larger area to avoid pull-though
• The spring holds the button captive so that it can't be dropped underneath the car or into some hard-to-get-at area of the chassis
• A necessity for quick pit work in racing
• Use with Spring Nos. 71400, 71410, 71420, 71425 or 71430
• Ten per package

• Cast Aluminum 4150/4160 1" Thick Carburetor Spacer
• Open Plenum Design
• Can easily be mounted with one of the Moroso Carburetor Stud Kits Nos. 37950, 37960 or 37961
• Open plenum aluminum carb spacers increase plenum volume for high RPM power
• Gaskets are not included
*Not legal for sale or use on pollution-controlled vehicles.

• Fits: Standard-size radiator filler necks, including Moroso Nos. 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, and 63745
• Available with low and high pressure raitings to accommodate the needs of all cooling systems
• Steel spring maintains accurate pressure setting over time
• Six-sided Cap for easy tightening

• Grade 8 Header Bolts are heat-treated with black oxide finish
• Uses 7/16" hex head for quick installation & removal of headers
• Package of 16
• For Small, Big Block & 90° V6 Chevy engines, Small Block Ford & other engines where 3/8"-16 bolt is used