Product DetailsSierra 18-1985 marine manifold spacer. Size: 6″, For: 229 & 262 V-6, 305-350 Small Block V-8, 454 Big Block V-8. Replaces: Barr MC 20 93322A3, GLM 50610, Mallory 9-40531, Marine Power 612011, Mercruiser Stern Drive 93322, Osco 3322.
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.