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Press Release 7/31/2021 - Mast Motorsports & Endyn Products Partner with 4 Piston

Posted by Jason Youd on

Mast Motorsports and Endyn Products announce a manufacturing partnership with 4 Piston to carry forward on all sales and support for its USA manufactured K Series Honda cylinder head. 
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Mast Motorsports Releases 5.3L Black Label Head

Posted by Bold Apps on

Now you can make SERIOUS power with your 5.3L engine using Mast Motorsports Black Label heads.  Supporting over 500hp+ naturally aspirated on pump gas with the stock bottom end, the Mast Black Label 5.3 Heads are a force to be reckoned with and so will your 5.3!  
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