• Professionally rebuilt longblock assy. 
  • Longblock and cylinder head will be remanufactered. 
  • powerhead will receive the following services, disassembly and cleaning, measure bearing clearances, measure and check each cylinder, hone all cylinders in preparation for new piston rings. clean and measure crankshaft, polish all crank journals. Jet wash block, measure, check and clean each piston, replace if necessary. deck block surface if necessary. Full cylinder head job, valve job and resurface cylinder head. Assemble and retime powerhead with new timing chain and tensioner. repaint with mercury phantom black. 
  • This will fit 350hp , 400hp and 400R
  • guaranteed to function properly & long block assy will comes with a 1 year/ 100 hour limited warranty. 
  • please allow up to 3-5 business days for crating and shipping
  • This price does not include a core price, if you do not have a corethen you will need to pay an additional $500.00
  • Flat rate shipping is to a commerical address with a forklift in the contential US. Flat rate shipping does not include alaska or puerto rico. For all other shipping quotes, please contact us.