Magnum XL – Big Block Chevy

* Stroke Range of 3.500 in. to 5.600 in.
* 2.200 – 2.100 – 2.000 Rod Journal Diameters
* 409 and Conventional BBC Main Bearing Diameters
* Various Flange & Post Bolt Hole Configurations.
* Dual Post Key-ways and Deep Hole Post Drilling
* Weight Range of 58 lb. to 70 lb.
* Uniquely Milled Counterweight Profiles for Reduced Weight and Windage
* Full Internal Balance to Your Specific Assembly Weight (no drilling)
* Gun Drilled Mains,With 8 Full Counterweights

BBC Magnum XL lightweight crankshaft

Below is only a partial listing of part numbers.  Please call for additional part number information and availability.

MAGNUM XL CHEVY
Stroke Main Pins PRICE
Tier 1 4.250 and under 2.750 2.200, 2.100 $2,657.00
Tier  2 4.251 to 4.750 2.750 2.200, 2.100 2,912.00
Tier  3 4.751 and up 2.750 2.200, 2.100, 2.000, 1.888 3,127.00

* Any stroke with 2.000 or 1.888 pin is sold at Tier 3 pricing.
* Strokes 4.500 and above may require an additional balancing fee depending on bob weight and rod length.
* All 4.900 Spread Bore Crankshafts add – $440.00
* Custom under sizes up to .0015 add – $150.00