70-74 383HP-400HP-440HP Exhaust Manifold Heat Riser Repair Kit with Instructions 383400440 (TP-BBHTRSR)

This listing is for a correct-style heat riser repair kit, designed specifically for high-performance Mopar big block applications.

Product Overview:

Designed for 1970–1972 383HP, 400HP, and 440HP engines

Fits the right-side (passenger) exhaust manifold just like the originals

Reproduced with all correct factory-style markings for authenticity

Includes all parts, hardware, and detailed step-by-step installation instructions

Why This Kit Matters:
High-performance engines used a different heat riser assembly to accommodate the larger diameter exhaust manifold. Most original risers are:

Missing

Seized/frozen

Broken or incomplete

This kit is a direct-fit repair solution, restoring proper function and factory-correct appearance.

What’s Included:

Complete heat riser assembly

Correct hardware

Factory-style tension spring

Spacer, shaft, valve plate, and bushing components

Full-color installation instructions

Applications:
Fits all 383HP and 440HP-equipped:

1970–1971 E-Body:

Dodge Challenger

Plymouth Cuda

1970–1974 B-Body:

Dodge Charger

Dodge Coronet R/T

Dodge Super Bee

Plymouth Road Runner

Plymouth GTX

Plymouth Superbird

All of our exhaust systems are fabricated to Original Equipment Manufacturing (OEM) specifications, directly reflecting the standards used in the factories where your classic car was built.

Please note that our pipes may exhibit minor imperfections due to the fabrication process, and they are intended for standard local car show quality.

All of our tubing is conventionally bent using a compression bending method, similar to factory specifications. We do not utilize the mandrel bending process in our fabrication. We always recommend professional installation of your exhaust system as minor adjustments to the pipes may be necessary, to ensure proper fitment.

Our systems are designed for the general consumer and weekend enthusiasts. However, if your vehicle is a numbers-matching, High End show-quality car and or date-coded mufflers, we advise against purchasing this system, as it may not meet your specific requirements.