These Hooker Blackheart cast iron exhaust manifolds have been custom designed to support LS swaps in 1990-2004 GM S10/Sonoma trucks. Featuring 2.50 in. outlets, they are designed to be used with Hooker GM truck LS swap supporting products for a complete LS swap solution.

Hooker BHS594 Blackheart LS Swap Exhaust Manifolds for 1982-2004 Chevy S-10, GMC Sonoma Supporting Products:

• Blackheart Transmission Crossmember:
• 71222020HKR (sold separately) when using GM 4L80E Transmission
• 71222018HKR (sold separately) when using GM 700R4, TH350, or Powerglide transmissions
• 71222019HKR (sold separately) when using GM T56, 4L60E, 4L70E, 4L75E, or TH400 transmissions
• Blackheart Manifold Adapter Pipes 71223024HKR (sold separately)
• JEGS Oil Pan 555-50275 or Holley Oil Pan 302-1 (both sold separately) or equivalent
• Holley Oil Pan Dipstick and Tube 302-15 (sold separately)
• Blackheart Steering Shaft:
• 71223022HKR for 1982-1993 Models
• 71223021HKR for 1994-2004 Models

Emissions Note:

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