Hooker Blackheart Headers BH13243 Fitment Details (Items Sold Separately):

• 1968-1972  C10 2WD Trucks w/Narrow Frame Rails use Hooker Header's Engine Mounts 520-BHS511
• 1973-1974 C10/C20 2WD and 1973-1974 Blazer/Jimmy 2WD use Hooker Header's Engine Mounts 520-BHS540
• 3 in. Slip Style Collectors Require the use of Exhaust Band Clamp 555-30853
• 4L60E, 4L65E, 4L70E, 4L75E, and 6L80 Transmissions Work with Crossmember 520-BHS548
• 4L80E & 4L85E Transmissions Work with Crossmember 520-BHS549
• T56 & T56 Magnum 6-Speed Manual Transmissions Work with Crossmember 520-BHS550
• Compatible with Holley's Low-Mount Accessory Drive System 510-20-162 or 510-20-162BK

Emissions: This part is legal for sale or use on Racing-Use-Only Vehicles that are used exclusively for competition, that are not registered, and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions-Controlled Vehicle