3.0L, 181 Bare Block. 1991-Later Style, 1-Piece Rear Main Seal. Replaces GM #93429813

New Standard bore 3.0L, 181 Bare Block. Ready to be assembled. Camshaft bearings, brass freeze plugs, and oil line plugs installed. 

• Cast-iron block
• 4.000" bore
• Replaces GM #14097080 casting number

About our Engine Blocks

When building a small block performance or marine engine, or a replacement for a stock engine, our performance engine blocks are an ideal option for your build. A much better option than using an engine core, our new blocks bring peace of mind, OEM precision, and durability that others cannot. Each cylinder block is machined to production spec tolerances and is manufactured to the exact specifications of 1991-newer one-piece RMS 080 engine blocks.