Chevy Big Block Exhaust Manifold Heat Riser Eliminator Spacer Kit – 396 402 427 454 (RH Side)

Replace your original heat riser valve with this high-quality exhaust manifold spacer (heat riser eliminator) kit for Chevrolet Big Block engines. Designed as a direct-fit replacement for non-functional or removed heat risers, this spacer restores proper exhaust alignment and flow while maintaining the correct manifold height.

Features:

• Fits Chevy Big Block 396, 402, 427, and 454 engines (1966–1980)

• Installs on right-hand (passenger) side

• Includes 2.5” exhaust donut, gasket, studs, and brass nuts

• Correct 3” center-to-center hole spacing (slightly over 3")

• 1-1/8” overall thickness – matches original heat riser dimensions

• Durable design – eliminates the failure-prone heat riser valve
  

Applications Include:
Camaro, Chevelle, Nova, Corvette, Monte Carlo, El Camino, and other 1966–1980 Chevrolet models with Big Block engines.

Important Fitment Note:
This is a spacer/eliminator, not a functioning heat riser valve. Confirm your manifold size and bolt spacing before ordering.