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Demo Derby

Safety,Steering,Carburetors & Radiators,Manifold & Headers

5/8 Coarse single sided lug nut

5/8 Coarse single sided lug nut

Item # 910-03914

Details
Thread Pitch: 5/8"-11
Threads: RH Female
Lug Nut Seat Style: Cone
Double Sided: No
Seat Taper: 45 deg
Material Type: Steel
Wrench Size: 1"
Finish: Zinc Plated
Sold in Quantity: Each
Info
Use these oversized 1 inch hex steel lug nuts in place of those 'puny' stock size lug nuts. You will need a 1" hex (6-sided) socket.

5/8" coarse thread fits most racing wheels.

45° taper
5/8" RH coarse thread, Single Taper
What's The Angle
Most racing wheels have a 45° seat for the lug nut to seat in while most street wheels use 60°. By using 45° the lug nut is able to clamp tighter over a larger area, which helps keep your wheels on the car where they belong.

If you mix and match street and race wheels or lug nuts you are just asking for trouble. All our lug nuts are 45° and designed to be used with racing wheels.

$0.99
Details
Wheel Lug Nut Steel 5/8 Coarse Double Taper

Wheel Lug Nut Steel 5/8 Coarse Double Taper

Item # 910-03915

Details
Thread Pitch: 5/8"-11
Threads: RH Female
Lug Nut Seat Style: Cone
Double Sided: Yes
Seat Taper: 45 deg
Material Type: Steel
Wrench Size: 1"
Finish: Zinc Plated
Sold in Quantity: Each
Info
Use these oversized 1 Inch Hex Steel lug nuts in plane of those 'puny' stock size lug nuts. Double-sided 45° seat design for quick and secure fastening.

You will need a 1" hex (6-sided) socket.

5/8" Coarse Thread fits most racing wheels.

45° taper
5/8" RH Coarse Thread, Double Taper
What's The Angle
Most racing wheels have a 45° seat for the lug nut to seat in while most street wheels use 60°. By using 45° the lug nut is able to clamp tighter over a larger area, which helps keep your wheels on the car where they belong.

If you mix and match street and race wheels or lug nuts you are just asking for trouble. All our lug nuts are 45° and designed to be used with racing wheels.

$0.99
Details
Steel Transmission Fittings

Steel Transmission Fittings

Item # PCR-410-814

For Turbo 400 transmission
Won't crack case
Shorter for steel bell housing clearance
Shipping Dimensions: 4.5" x 3.5" x 1.5"
Weight: 1 lb. These are sold in pairs.

$21.00
Details
Holley 17-90 Carburetor Adapter Plate for 2bbl XP

Holley 17-90 Carburetor Adapter Plate for 2bbl XP

Item # PRS 425-1790

-Brand:Holley
-Adapter Style: Individual venturi ports
-Height (in): 0.750 in.
-Hardware Included: Yes
-Gaskets Included: No
-Adapter Material: Billet aluminum
-Adapter Finish: Black anodized

These carburetor adapters from Holley make intake, carburetor, or throttle body changes a snap. They're available in a variety of bolt patterns to accommodate a large number of combinations.

$155.95
Details
Billet 2-Barrel Carburetor Spacer, Q-Jet Intake

Billet 2-Barrel Carburetor Spacer, Q-Jet Intake

Item # PRS 135-1954

Not all carb spacers are created equal! These are not just a cheap "fits all" parts. Our billet aluminum carburetor spacers are CNC machined to fit your factory Quadrajet manifold perfectly.

-Gain up to 17 horsepower over competing adapters
-1" tall
-4412 Holley/Rochester carburetor to stock Quadrajet intake

$108.99
Details
Adjustable Holley 2300/Rochester 2G Two Barrel Car

Adjustable Holley 2300/Rochester 2G Two Barrel Car

Item # PRS 910-11510

This set of aluminum intake adapter plates allows you to adapt a Rochester 2G 2 barrel or Holley 2300 series two barrel carburetor onto a 4 barrel intake manifold and adjust it forward or back on manifold. The carb spacer plates feature an open design to increase plenum volume which improves top end performance. When assembled the adapter will measure 1" tall.

Kit includes carb adapters, gaskets and all necessary hardware.

$57.99
Details
Holley 2300 to Rochester 2G Two Barrel Intake Carb

Holley 2300 to Rochester 2G Two Barrel Intake Carb

Item # PRS 135-1934

-Overall Thickness: .495"
-Bolt Hole Pattern: Holley/Demon/Ford: 5.125" x 3.500", -Rochester/Carter: 3.250 x 1.875
-Gasket(s) Included: Yes
-Hardware Included: Yes
-Material Type: Aluminum
-Finish: Natural
-Sold in Quantity: Each
Info
This aluminum carb adapter plate lets you adapt a large Holley 2300 series 2-barrel carburetor to a Rochester 2G 4-bolt 2-barrel intake manifold base. The adapter features an open plenum design and measures 1/2" thick. The carburetor adapter includes two gaskets and all necessary hardware to install.

-Adapts Holley 2300 (or equivalent Ford/Motorcraft) to Rochester -2G/Carter intake
-Smaller bolt pattern: 1-7/8" x 3-1/4"
-Larger bolt pattern: 3-1/2" x 5-1/8"
-Adapter is 1/2" thick
Note: With just a little work with a file, the adapter can also be used to adapt an intake manifold with a 2" x 3-3/4" bolt pattern to the Holley 2300/Ford/Motorcraft 2 barrel carburetor as well.

$19.99
Details
Flowtech 11545FLT SBC Upright Derby Headers, 1-5/8

Flowtech 11545FLT SBC Upright Derby Headers, 1-5/8

Item # PRS 425-11545FLT

-Collector Diameter: 3"
-Collector Length: 12"
-Material Type: Stainless Steel
-Finish: Natural
-Sold in Quantity: Set

Info
Get the perfect combination of quality and value with FlowTech Upright Derby or Truck Pull Style Headers. Features a 1-5/8” tubing diameters and are ideal for even big cubic inch Small Block Chevy engines.

Also features a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.

Features:

-CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
-Heavy duty 16-gauge 409SS tubing for increased strength and durability
-1-5/8” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
-3” collector for maximum strength and exhaust flow
-Extra thick header flange for a leak-free seal and maximum strength
-Welded-in collector merge spears to control exhaust gas re-entry into primary tubes

$352.95
Details
Schoenfeld Inc 1514-LS1 , LS1 Demo Derby Headers 1

Schoenfeld Inc 1514-LS1 , LS1 Demo Derby Headers 1

Item # PRS 917-15141

-Collector Diameter: 3.5"
-Collector Length: 8"
-Hardware Included: Yes
-Gasket(s) Included: Yes
-Material Type: Steel
-Finish: Painted
-Color: Black
-Sold in Quantity: Pair
Info
This part is for the LS1. Bolts and gaskets are included. This also has high flow mandrel bent tubing.

-1-3/4" tube diameter
-8" collector length
-3-1/2" collector diameter

Notes
The paint on Schoenfeld headers protects them after the manufacturing process and during shipping - it is not designed as a final finish. It is recommended that this protective paint be stripped and a high heat coating/paint designed for use on headers be applied.

$339.95
Details
MSD 6014 LS Ignition Control, Red

MSD 6014 LS Ignition Control, Red

Item # PRS 547-6014

The demand for a powerful, reliable and easily adaptable ignition system for GM LS engines is growing higher and higher. MSD has answered this demand with an updated and improved version of the popular 6LS box. Whether using a stock crate engine or building a custom powerhouse, the MSD LS Ignition provides the control you need to achieve the performance you want.

Dial in the perfect tune for your LS using the easily adjustable preset timing curves or hookup to your computer and program a custom setup with our user friendly MSD View software. New features of the LS Ignition include; high speed data acquisition, an optional coolant temperature sensor input, idle timing control, as well as individual cylinder timing. These features are in addition to the existing programmable step retard, launch retard and RPM rev limiters from its predecessor.

Features:

-Red in color
-Fits most LS Engines
-No PC required for basic functionality
-Six preprogrammed timing tables for easy set-up
-Rotary selector switch allows timing changes on the fly
-Nitrous and boost compatible
-High speed data acquisition
-Fully Sealed direct plugin connectors
-Programmable step retard
-Launch and max rev limiters
-Optional coolant temperature sensor input
-Launch retard
-Idle timing control
-Individual cylinder timing
-Compatible with all MSD, Accel and GM LS coils

$522.99
Details