Engines are sold with 100% core credit guarantee as long as they meet the following conditions:

• Core has not been disassembled
• Crank must rotate 360 degrees
• No visible exterior holes or cracks (repairable problems no cost, see below)
• No fire damage

Deductions up to 50% of the core value could occur if any of the above criteria are not met. Dealer will be notified within 30 working days of any deductions from the date of receipt of the core into our plant.
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​Deductions in credit beyond 50% will occur for the following reasons:

• Missing parts
• Core is not of the same configuration as the item sold
• Cores returned after 60 days will receive a 10% per month deduction

CharNor repairs stripped threaded holes without additional cost or core reduction.
 Pictures below show repairable GM4.3 block starter holes and ear damage. 
​To see a video of repairs to GM4.3 starter holes using our CNC Machining center
http://www.charnor.com/starter-repair.html

White lines used in pictures above are used to ID the damaged area. These lines do not indicate the extent of repairable damage. If there are any questions about the repair-ability of your core, please send  pictures to your Sales Representative for an opinion.