ACCEL Performance Replacement Distributors are the perfect choice for your daily driver or street machine. Using all new components, these distributors feature: High performance ACCEL Electronics. The new ACCEL GM OPTI-SPARK I distributor is not only a high quality alterative to the factory replacement but is an incredible value as well. Anyone that's changed one of these before knows it's very labor intensive. You only want to do it once, so pick a high quality performance upgrade like the ACCEL OPTI-SPARK I distributor. Cast Aluminum Housing w/Precision Bearing Epoxy Over Mold w/Brass Terminals Rotor Is Balanced w/Brass Blade And Stainless Steel Spring Compatible w/High Output Cd Ignition Systems Spline Drive Direct OEM Replacement Additional Attributes: GTIN: 00743047107454 Color: Black Distributor Type: Opti Spark Engine Make/Size: OE Finish: Cast Material: Aluminum WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Extened Information: Emissions : Emission verification to be determined in ACES, vehicle application data. Life Cycle Status: Available To Order Packaging: Quantity of Each: Package UOM: Dimension: 10.5000 x 9.7000 x 4.6000 inches