One pair of head pipes: These 383 a-body head pipes bolt to the factory manifolds. The two-piece design make the 2.25" and 2.5" units a breeze to install and adjust for car irregularities common in big block a-body applications. The 383 head pipes will also fit 440 applications which would require the right side manifold spacer as the originals. Spacer kits are available by special request.
For those requiring one piece 2.50" head pipes as found on the 69 models , these can be special ordered by calling. TWO-PIECE HEAD PIPES ARE RECOMMENDED FOR EASIER INSTALLATION AND FIT.