BLP Offers many of the Genuine Holley® and BLP Billet Boosters for the discerning carburetor builder or performance enthusiast.
** Please note:
Installing boosters without proper tooling or experience can cause personal injury or damage to your components. It is recommended to have qualified personnel install boosters.
Boosters and Components
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4150 Down-leg boosters. 156
Part number: 45206 Holley® down-leg booster .156 feed hole. Designed to be installed in most Holley® 4150 series applications. Sold Individually...$3.55... more info -
BLP Profiled Downleg Stepped Booster
Part Number: 5100S-450 BLP DOWNLEG STEPPED BOOSTERS Recommended for 750 and smaller carburetors. BLP 4150 down leg boosters are machined from a high...$12.10... more info -
4150 ANNULAR BOOSTER BANJO
Part Number: 45260-1 OEM 4150 ANNULAR BOOSTER BANJO Annular Booster Banjo for 4150 applications. Genuine Holley® annular banjos designed to fit...$5.75... more info -
4150 Down Leg Booster, .140 Hole
Part number: 45146 HOLLEY® 4150 BOOSTERS Down leg with .140 hole. Sold Individually. picture for illustration purposes only$2.99... more info -
4150 Down Leg Booster, .178 Hole
Part Number: 45165 HOLLEY® 4150 BOOSTERS Down leg with .178 hole.$3.45... more info -
4150 Stepped DownLeg Booster .156
Part number: 45296 HOLLEY® 4150 BOOSTERS Stepped down leg with .156 hole.$4.99... more info -
4150 Straight Leg Booster .125 Pilot
Part Number: 45312 HOLLEY® 4150 BOOSTERS Straight leg heavy duty with .125 pilot hole, (must be sized). Sold individually.$4.51... more info -
B-STYLE STEPPED BOOSTERS
Part Number: 145-200 B-STYLE STEPPED BOOSTERS This new designed booster was engineered by Dave Braswell®; with special feature such as: improved...$9.00... more info -
BLP Downleg Booster Legal
Part number:5101 BLP 4150 down leg boosters are machined from a high hump heavy-duty blank. The booster leg is sized with a special ball-nosed reamer...$7.85... more info -
BLP Downleg Booster Modified
Part number: 5100 BLP DOWNLEG BOOSTERS BLP 4150 down leg boosters are machined from a high hump heavy-duty blank. The booster leg is sized with a...$9.40... more info