gm 8.1 520 cid high performance with ported heads - $7,500

Oct 21st 2026

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$7,500

Listing Number: 184834573

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Fort Myers, FL, United States

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Hot Rods and Cool Stuff (Business Seller) RJ Storefront

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Item description

Gm 8.1 520 cid bored to 4.35 …forged steel crank..
Flat top pistons..hydraulic roller 112 center line. 290 duration..champion racing ported heads..this is a new engine built on extra heavy duty marine block by flagship marine.
Cylinder walls sonic checked at over .250 or better. Should make easy 600 hp natural and could take boost killer deal at $7500

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Condition:

New

Seller Information

Business

Hot Rods and Cool Stuff RJ Storefront

, Jacksonville, Florida 32246

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Website

www.hotrodsandcoolstuff.com/

Member Since

January 2007

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RJ Seller Store

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