Top Posts Tagged with #vortec454

Shake down testing going on now after 600 miles on the fresh 454 double checking the build. So far 145lbs across the board for compression! Cylinder leak down test is next

#projectbiggray #gmt400 #454 #vortec454 #k3500 #gmctruck #obschevy #gmcsierra #gmc

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Starting to come together! The short block is almost done

#projectbiggray #454 #7.4 #vortec454 #gmctruck #gmcsierra #gmc #chevrolet #chevytrucks

Big gray's new heart! Vortec 454 bored out 30 over!!

#projectbiggray #vortec454 #gmctruck #gmcsierra #gmc