Chrysler Small Block Center Rise Exhaust Manifold | Barr CM-1-4417063Cast iron center rise exhaust manifold fits Chrysler LM318, M340, & M360 marine engines from 1986 to present. Chrysler Small Block Center Rise Exhaust Manifold Barr CM 1 4417063 Barr Chrysler center rise exhaust manifold For Chrysler LM318, M340, and M360 engines from 1986 to present Includes with gaskets and mounting hardware Heavy duty cast iron Painted Chrysler blue Replaces Barr CM1 4417063 Replaces Chrysler number 4417063, 4417590 !! Not Eligible