Hooker Blackheart Gen III Hemi swap exhaust manifolds are one part of a fully engineered swap system that provides maximum component clearances and ideal drivetrain geometry. These manifolds are designed to fit a wide range of swap applications where clearance is limited. Fitment has been confirmed on several popular platforms, including 1987-2004 2WD Dakota, 1972-1993 2WD D100/D150, 1966-1972 B-body with manual steering box, and 1970-1974 Mopar E-Body with manual steering box when using the Holley swap system components. These exhaust manifolds are cast from hi-silicon-moly ductile iron and feature 2.5-inch 2-bolt collectors. These manifolds provide clearance to the brake booster, steering shaft, steering box, starter motor (both left & right side-mounted starters) and provide clearance for several automatic & manual transmission options. Manifold fitment has been confirmed on the following Gen III Hemi swap vehicles when used with Holley engine swap components: Compatibility with other vehicle combinations and swap components is likely but has not been confirmed. • 1966-1972 B-Body - manual steering ONLY, reduced head cover bolt recommended; see Figure 3 on Instruction Sheet • 1970-1974 E-Body - manual steering ONLY, reduced head cover bolt recommended; see Figure 3 on Instruction Sheet • 1987-1996 Dodge Dakota 2WD V6/V8 • 1997-2004 Dodge Dakota 2WD V6/V8 - Upper Control arm clearance recommended; see Figure 4 on Instruction Sheet • 1972-1993 Dodge D100/D150 - automatic transmission ONLY