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This certified engine rebuilder offers high performance and replacement International M800 Post Office gas and diesel engines, marine engines and cylinder heads at discount prices with extended warranty coverage. Our engine supplier has maintained an amazing 1.5% failure rate during its 30+ years in the engine business while the national average failure rate is above 5%. Buy International M800 Post Office engine here and enjoy peace of mind. Read more...

International M800 Post Office Crate Engine Block | Rebuild Engine | Prices, Reviews, News @ The Auto Channel

Can't find your car or truck engine? Locate a rebuilt or used engine here!
L6, 4.2 L, 258 CID Rebuilt Engine
Description: L6, 4.2 L, 258 CID Rebuilt Engine
Bolt on Rockers
Fits: 1972 International M800 Post Office
Part Number: AMC-258LB
Core Deposit: $300.00
Retail Price: $1,794.95
$1,495.00  Continue
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V8, 5 L, 304 CID Rebuilt Engine
Description: V8, 5 L, 304 CID Rebuilt Engine
Scout appl. Comes with oil pump kit only.
Fits: 1970 International M800 Post Office
Part Number: IHC-304LB
Core Deposit: $300.00
Retail Price: $2,754.95
$2,295.00  Continue
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L6, 3.9 L, 241 CID Used Engine
Description: L6, 3.9 L, 241 CID Used Engine
Fits: 1970 International M800 Post Office
Part Number: X_754
Retail Price: N/A
Ad Hoc  Continue
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L4, 2.5 L, 152 CID Used Engine
Description: L4, 2.5 L, 152 CID Used Engine
Fits: 1971 International M800 Post Office
Part Number: X_760
Retail Price: N/A
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L6, 3.8 L, 232 CID Used Engine
Description: L6, 3.8 L, 232 CID Used Engine
Fits: 1970 International M800 Post Office
Part Number: X_756
Retail Price: N/A
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Discount Engine Blocks - Call 1.866.612.9798