Crankshafts & Parts

Harmonic Balancer - Race lightweight - 6.110 in OD - SFI 18.1 - Steel - Clear Powder Coat - Internal Balance - Small Block Chevy - Each As always, 21 Motorsports offers FAST and FREE shipping on Power Bond Balancers part number PB1012SS. Please look...

Harmonic Balancer - Race - 7.070 in OD - SFI 18.1 - Steel - Clear Powder Coat - Internal Balance - Small Block Mopar - Each318/340 As always, 21 Motorsports offers FAST and FREE shipping on Power Bond Balancers part number PB1004SS. Please look around...

Harmonic Balancer - Race - 7.950 in OD - SFI 18.1 - Steel - Clear Powder Coat - External Balance - Small Block Chevy - Each As always, 21 Motorsports offers FAST and FREE shipping on Power Bond Balancers part number PB1050SS. Please look around to find...

(Street Series - P/S, Air and Alt. pully - O.D 5-7/8' - 7.78LBS - Bore Dia. 1.1003min/1.1013max - Steel Housing - Fits All Honda B Series) Built for the Acura Integra... A good aftermarket damper protects your crank. Fluidampr is in a class all by...

Crankshaft - 3.480 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Small Block Chevy - Sold Individually As always, 21 Motorsports offers FAST and FREE shipping on Manley part number 190190. Please look around to find more great items from...

Crankshaft - 3.480 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Small Block Chevy - Sold Individually As always, 21 Motorsports offers FAST and FREE shipping on Manley part number 190310. Please look around to find more great items from...

Crankshaft - Pro Series - 4.000 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Small Block Chevy - Sold Individually As always, 21 Motorsports offers FAST and FREE shipping on Manley part number 190130. Please look around to find more...

Crankshaft - 3.750 in Stroke - Internal Balance - Forged Steel - 2 Piece Seal - Small Block Chevy - Sold Individually As always, 21 Motorsports offers FAST and FREE shipping on Manley part number 190150. Please look around to find more great items from...

As always, 21 Motorsports offers FAST and FREE shipping on Cometic Gasket part number C5376. Please look around to find more great items from Cometic Gasket and all the other great and parts you love!

As always, 21 Motorsports offers FAST and FREE shipping on Cometic Gasket part number C5378. Please look around to find more great items from Cometic Gasket and all the other great and parts you love!

As always, 21 Motorsports offers FAST and FREE shipping on Cometic Gasket part number C5377. Please look around to find more great items from Cometic Gasket and all the other great and parts you love!

(Street Series - K-Series) Built for the Acura RSX... A good aftermarket damper protects your crank. Fluidampr is in a class all by itself, because it is designed to provide maximum control of all engine harmonic vibrations, regardless of the rpm at...