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AMG GEP Optimizer 6500 Long Block
Meet Quadstar's version of the Optimizer 6500, the latest revision of the 6.5L diesel that is still in production today! It features a 506 block design with piston squirters, like a...
Sale price $8,500.00 $8,500.00
6.5L Non-Turbo Optimizer Cylinder Head
Brand new, complete Optimizer cylinder heads for your 6.2 or 6.5L build. Featuring: USA castings that are superior to the GM designs Induction hardened valve seats Complete and ready to bolt...
Regular price $1,100.00 $1,100.00
6.5L Turbo Optimizer Cylinder Head
ProMaxx Replacement Cylinder Head
Complete 6.5L turbo spec replacement aftermarket cylinder heads with diamond pre-cups. Ready to install with true surface, proper valve depth & no core charge. Generally accepted as being better all-around...
Regular price $550.00 $550.00
