LS Transmission Crossmember for 1965-70 Chevy Impala and Caprice
Swapping an LS engine into a 1965 to 1970 Chevy Impala or Caprice demands not only precise transmission placement but also efficient exhaust routing to maintain performance and reliability. The 1991-1996 B-Body LS 1-7/8 Ceramic Coated Mid-Length Headers bolt directly to the factory exhaust ports on vehicles built between 1991 and 1996 and are engineered for LS compatibility. Each primary tube measures 1.875 inch to improve scavenging while the ceramic finish reduces underhood temperatures and curbs corrosion. With plug and play simplicity, these headers align with the stock manifold flange and clear the crossmember without tunnel work, letting builders focus on wiring and plumbing tasks with confidence in fitment and durability.
Construction and Durability
The 1991 1996 B Body LS 1 7/8 Ceramic Coated Mid Length Headers are built from high grade steel that stands up to extreme heat and corrosive conditions. The ceramic coating layer acts as a thermal barrier to maintain peak exhaust velocity and reduce under hood temperatures. With a precision mandrel bend process the tubing maintains consistent diameter through each curve which supports even flow and limits backpressure. This robust combination prevents tube warping and cracking during repeated heat cycles to ensure a longer service life and consistent performance where reliability is critical.
Fitment and Installation
Each header is custom engineered for exact fitment in 1991 to 1996 B-Body vehicles. The factory style flange placement aligns precisely with the LS head ports to eliminate seal leaks that can sap power. The bolt in installation requires only minimal alignment adjustments for quick assembly and reduces downtime. Integration with MuscleRods mounts ensures correct engine placement and ideal drivetrain angles without additional fabrication which preserves chassis geometry and warranty compliance.
Performance and Handling
The mid length design balances exhaust scavenging benefits with ground clearance to suit street driven classics. Improved flow characteristics deliver more consistent torque across the RPM range for better throttle response under acceleration. By reducing weight over the front axle and optimizing the exhaust path the headers contribute to enhanced chassis stability which translates into more predictable cornering behavior and smoother power delivery. Enthusiasts will notice sharper turn in and steadier platform feedback as a result.
Conversion and Installation Simplicity
Designed for LS conversions, these headers fit without tunnel modifications, allowing a straightforward installation. Precise fitment reduces exhaust leaks and ensures reliable performance without additional fabrication steps.
To pair with these headers in your LS swap, consider our Related CRS product, the 1958-1964 B-Body Sure-Fit Crossmember (Only).