Base Plate Component Parts
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102203-BX1 Secondary Pro-Flow 4150 shaft
Part Number:102203-BX1 HOLLEY REPLACEMENT THROTTLE SHAFTS These Pro-Flow series shafts are thinned for optimum airflow. The arm is welded for...$40.15... more info -
4150 Pri Shaft Stock Thickness/ Coated
Part Number:102264-BX2 HOLLEY REPLACEMENT THROTTLE SHAFTS These Pro-Flow series shafts are standard legal gauge thickness. The arm is welded for...$42.99... more info -
4150 Pri Shaft Thinned/ Coated
Part Number:102264-BX1 HOLLEY REPLACEMENT THROTTLE SHAFTS These Pro-Flow series shafts are thinned for optimum airflow. The arm is welded for...$42.99... more info -
Holley® Primary Throttle Shaft
Part Number:102264-3 HOLLEY® REPLACEMENT THROTTLE SHAFTS Primary Progressive Linkage for 4150 Sold as individual primary shaft. Picture for...$18.95... more info -
Holley® Sec Progressive style Throttle Shaft
Part Number:102203 HOLLEY® REPLACEMENT THROTTLE SHAFTS Secondary Progressive Linkage for 4150 Sold as individual secondary shaft. Picture for...$16.25... more info -
30cc Holley® Plastic 4150 Pump Arm Assy
Part Number: 631540 30cc Plastic 4150 Pump Arm Assembly BLP Racing Products, LLC. Is not responsible for errors with photography,typographical...$4.95... more info -
30cc Holley® pump arm 4150 series.
Part Number: 63741 30cc Steel 4150 Pump Arm Assembly.$4.95... more info -
50cc Steel 4150 Pump Arm Assembly
Part Number: 63833 50cc Steel 4150 Pump Arm Assembly.$12.35... more info -
50cc 4500 Series Accelerator pump arms
Part Number: 63853 Genuine Holley® 50cc 4500 series steel pump arm.$12.55... more info -
BLP Secondary Linkage Kit
Part Number: 43601B-BLP BLP offers a new and improved secondary throttle linkage kit for all Holley®HP and BLP BX Billet 4150 series carburetors....$20.00... more info -
Progressive Secondary Throttle Link
Part Number: 43601 Progressive Secondary Throttle Link, Blue$1.50... more info -
Secondary Throttle Link, 1:1
Part Number:43601-1 Secondary Throttle Link, 1:1, Gold$6.35... more info -
Accelerator pump cam, black BX Sure Shot
Part Number: 41234BX Accelerator pump cam, black. Designed for BLP Sure shot applications.$8.35... more info -
Accelerator pump cam, black
Part Number: 41234 Accelerator pump cam, black.$2.05... more info -
Accelerator pump cam, Blue
Part Number: 41427 Accelerator pump cam, blue.$2.05... more info -
Accelerator pump cam, orange
Part Number: 41466 Accelerator pump cam, orange.$1.98... more info -
Accelerator pump cam, white
Part Number: 41218 Accelerator pump cam, white.$2.25... more info -
Accelerator pump cam, 4500 white
Accelerator pump cam, 4500 white$2.75... more info -
Accelerator pump cam, 4500 yellow
Accelerator pump cam, 4500 yellow.$2.50... more info -
Accelerator pump cam, black BX45
Accelerator pump cam, black. Designed for BLP BX45 lowered shaft applications. Fits all BX45 Billet main sections.$8.35... more info -
Accelerator pump cam, green
Accelerator pump cam, green.$2.05... more info -
Accelerator pump cam, pink
Accelerator pump cam, pink.$2.05... more info -
Accelerator pump cam, red
Accelerator pump cam, red.$2.05... more info -
BLP Sec Accel Pump Cam Bracket. No Stop Feature
Part Number:638221-1 Secondary accelerator cam bracket. Does not include a stop feature. To purchase a bracket with stop use 638221-2. (Shown in...$12.55... more info -
Secondary Accelerator Pump Cam Bracket
Part Number:63822 Secondary Accelerator Pump Cam Bracket Genuine Holley® parts.$3.35... more info -
Accelerator pump cam, brown
Accelerator pump cam, brown.$2.05... more info -
Secondary Throttle Stop for 4150 w/Stop
Part Number:638221-2 Secondary cam bracket with stop feature. 638221-2 Product images are for illustrative purposes only and may differ from the...$22.00... more info -
Throttle Stop Lever
Throttle stop lever for BLP 638221 secondary cam brackets. Note: it is recommended to use loctite adhesive when installing this your existing cam...$8.25... more info -
Stainless Steel Throttle Plate Screw 1/4"
1/4" Stainless Steel Button Head Throttle Plate Screw, Torx Design$0.55... more info -
Power Valve Check Ball Kit
Part Number: 125-500 Power valve "blowout" protection can now be added to pre '92 model 2300, 4150, and 4160 carburetors. Consisting of a spring,...$23.25... more info -
4150 Throttle Adjusting Screw
Part Number:51271 Holley® Throttle adjusting Screw 4150.$0.31... more info -
Base Plate to Main Body Screw
Part Number:5567 Base Plate to Main Body Screw$0.35... more info -
3/8 4150 throttle shaft cover plug
Part Number:7281 390 CFM Base Plate Plug, 3/8" Cup$3.80... more info -
3/8 Vacuum Rubber Plug
Part Number:7558 Vacuum Rubber Plug, 3/8"$0.38... more info -
4150 Sec Throttle Adjusting Screw
Part Number:51601 Secondary Throttle Adjusting Screw, 4150$0.80... more info -
4150 Secondary Throttle Return Spring
Part Number:381762 Secondary Throttle Return Spring with Progressive Linkage, 4150 This spring is 25% stronger than the OEM spring and is made from...$3.99... more info -
4150 Throttle Adj Screw for Billet Base
Part Number:51601-1 Throttle Adjusting Screw for Billet Base, 4150$0.60... more info -
4150 Throttle Adjustment Spring
Part Number:38110 Throttle Adjustment Spring, 4150$0.42... more info -
4500 Throttle Adjustment Spring
Part Number:381559 Throttle Adjustment Spring, 4500$1.38... more info -
Accelerator Pump Arm Pivot
Part Number:37133 Accelerator Pump Arm Pivot$0.46... more info -
Accelerator Pump Arm Pivot
Part Number:37133-BX4X Accelerator Pump Arm Pivot for use with all BLP BX4 Xtreme applications$1.65... more info -
Aluminum Plug for 4x Idle Base Plate
Part Number:5304 Aluminum Plug for 4x Idle Base Plate, .215$0.61... more info -
Billet Base Plate Pivot Washer
Part Number:371331 Billet Base Plate Pivot Washer$0.18... more info -
Secondary Pump Bracket Screw
Part Number:5584 Secondary Pump Bracket Screw$0.38... more info -
Secondary Return Spring Pin
Part Number: 291094 Secondary Return Spring Pin$0.62... more info -
Secondary Return Spring Pin
Part Number:291094-BLP Secondary Return Spring Pin stainless for use with Billet base plate assemblies.$0.42... more info -
Secondary Throttle Link Cotter Pin, Stainless
Part Number:48183SS Secondary Throttle Link Cotter Pin, Stainless Steel$0.20... more info -
Secondary Throttle Link Cotter Pin
Part Number:48183 Secondary Throttle Link Cotter Pin$0.15... more info -
3/8Vacuum Tube
Part Number:14486 Vacuum Tube, 3/8"$0.75... more info -
3/16 Vacuum Tube
Part Number:14521 Vacuum tube, 3/16"$1.35... more info -
3/16 Vacuum Rubber Plug
Part Number:7550 Vacuum Rubber Plug, 3/16"$0.42... more info -
1/4 Vacuum Rubber Plug
Part Number:7550-3 Vacuum Rubber Plug, 1/4"$0.42... more info -
Secondary Throttle Link Washer
Part Number:46395 Secondary Throttle Link Washer$0.31... more info