BBK

BBK 85-97 GM Truck 305 350 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc)

SKU 1598

MPN bbk1598

$279.99 · Available to order

BBK 85-97 GM Truck 305 350 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc)

Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.

Confirmed vehicle fitment
YearsMakeModelSubmodelDrive
1985–1986ChevroletC30Custom—
1987ChevroletV30Silverado—
1985–1986GMCC2500Base—
1987ChevroletV20Scottsdale—
1985ChevroletImpalaBase—
1985–1986ChevroletK20Scottsdale—
1987ChevroletR10 SuburbanScottsdale—
1987ChevroletR10 SuburbanSilverado—
1985–1986ChevroletK30Custom—
1987GMCR3500High Sierra—
1985–1986ChevroletC10 SuburbanSilverado—
1987ChevroletV30Custom Deluxe—
1985–1986ChevroletK10 SuburbanScottsdale—
1987ChevroletV10Scottsdale—
1987GMCV3500Sierra Classic—
1987ChevroletBlazerCustom Deluxe—
1985–1986GMCK3500Base—
1985–1986ChevroletC20 SuburbanScottsdale—
1987ChevroletR10Silverado—
1985–1987ChevroletCapriceClassic—
1985–1986ChevroletC10Silverado—
1985–1986GMCK1500High Sierra—
1987GMCR1500 SuburbanBase—
1985–1986ChevroletK20 SuburbanCustom—
1987GMCV2500Sierra Classic—
1987GMCV3500Base—
1985–1986ChevroletK10 SuburbanSilverado—
1985–1986ChevroletCamaroBerlinetta—
1985–1986ChevroletC20Custom—
1985–1986GMCC3500Base—
1985–1986GMCC1500Base—
1987GMCV1500Sierra Classic—
1987ChevroletV20Silverado—
1985–1986ChevroletC20Scottsdale—
1985–1986ChevroletC20 SuburbanCustom—
1985–1986ChevroletC30Scottsdale—
1987GMCR1500Sierra Classic—
1985–1986ChevroletC30Silverado—
1987GMCR3500Base—
1985–1986ChevroletK20Custom—
1985–1986ChevroletC10 SuburbanCustom—
1987–1988ChevroletR20Custom Deluxe—
1987ChevroletV20Custom Deluxe—
1987GMCR2500High Sierra—
1985–1986GMCK2500Base—
1987ChevroletR10Scottsdale—
1985–1987PontiacFirebirdBase—
1985–1986GMCC1500Sierra Classic—
1985–1986GMCK2500High Sierra—
1987GMCR1500 SuburbanSierra Classic—
1987ChevroletV10Silverado—
1985–1986ChevroletK20Silverado—
1985–1986GMCC3500High Sierra—
1985–1986GMCC2500Sierra Classic—
1985–1986ChevroletC10Scottsdale—
1985–1986ChevroletK10Custom—
1985–1986ChevroletK5 BlazerCustom—
1985–1987ChevroletCamaroSport—
1987ChevroletR20 SuburbanSilverado—
1987ChevroletR30Custom Deluxe—
1987ChevroletR10 SuburbanCustom Deluxe—
1985–1986GMCK3500High Sierra—
1987ChevroletBlazerSilverado—
1985–1986ChevroletK10 SuburbanCustom—
1987ChevroletR10Custom Deluxe—
1987GMCR3500Sierra Classic—
1985–1986GMCC1500High Sierra—
1987GMCR1500High Sierra—
1987ChevroletV10Custom Deluxe—
1985–1986GMCK2500Sierra Classic—
1985–1986ChevroletK10Scottsdale—
1987ChevroletR20Scottsdale—
1985–1986GMCC2500High Sierra—
1987GMCR2500Sierra Classic—
1985–1986ChevroletC20Silverado—
1986–1987ChevroletCapriceBase—
1987GMCR2500Base—
1985–1986GMCK1500Sierra Classic—
1987GMCR1500Base—
1987ChevroletR20 SuburbanCustom Deluxe—
1987ChevroletCapriceClassic LS Brougham—
1985–1987ChevroletCamaroIroc-Z—
1985–1986ChevroletK20 SuburbanSilverado—
1985–1986ChevroletK20 SuburbanScottsdale—
1985–1986ChevroletC10Custom—
1987GMCV1500High Sierra—
1985–1986ChevroletK5 BlazerSilverado—
1987GMCV1500Base—
1985–1986GMCC3500Sierra Classic—
1985–1986GMCK1500Base—
1985–1986PontiacFirebirdS/E—
1985–1986ChevroletK10Silverado—
1985–1986ChevroletK30Scottsdale—
1987GMCV2500Base—
1986–1987ChevroletCapriceClassic Brougham—
1985–1986ChevroletC20 SuburbanSilverado—
1987GMCR1500 SuburbanHigh Sierra—
1987ChevroletR30Scottsdale—
1985–1986GMCK3500Sierra Classic—
1985–1986ChevroletK30Silverado—
1985–1987ChevroletMonte CarloBase—
1985–1987ChevroletCamaroZ28—
1987ChevroletR20 SuburbanScottsdale—
1986–1987ChevroletMonte CarloLS—
1985–1987ChevroletMonte CarloSS—
1985–1987PontiacFirebirdTrans Am—
1987ChevroletR30Silverado—
1985–1986ChevroletC10 SuburbanScottsdale—
1987ChevroletV30Scottsdale—
1987GMCV3500High Sierra—
1987ChevroletCamaroLT—
1987ChevroletR20Silverado—
1987GMCV2500High Sierra—
Specifications
CategoryEngine Components
Sub-CategoryPulleys - Crank, Underdrive
UPC197975015983
CARB ApprovedNo
Prop 65 WarningY
Special OrderYes
Weight5 lb
Dimensions (L×W×H)7 × 7 × 5 in