GM Chevrolet 6.2L L86 LT1 Rebuilder Cylinder Head 
Casting: 12620549
Years: 2014-Present

The head has been rebuilt and is ready to be installed. The head is disassembled, washed, and pressure tested. We replace all valve stems (replace valve guides as necessary), performed a valve job and milled the head. 

We offer a 90 day warranty for parts, buyer pays return shipping for refunds. For additional warranty details please visit our website: 

https://www.shrevesengines.com/shreves-warranty/


FAST AND FREE SHIPPING 


Photos in listing are stock photos. 


20% Restocking Fee on all Returns.


This cylinder head will interchange with the following vehicles with a 6.2L engine: 
VIN 8th DigitYearMakeModel
J2015-presentCadillacEscalade
J2014-presentChevroletSilverado
J2014-presentGMCSierra
J2015-presentGMCYukon / XL

L86 Cylinder Head Specs
Part Numbers12678633, 12620544, 12620545
Casting Number12620549
Material319-T7 Aluminum
Combustion Chamber Volume59.02cc
Intake Port ShapeRectangle
Intake Runner Volume297cc
Intake Manifold Bolt PatternLT1-Specific
Exhaust Port ShapeFlat Oval
Exhaust Runner Volume107cc
Cylinder Head Bolt StyleTorque to Yield (TTY)
Cylinder Head Bolt Size(10) M12 x 1.75, M8 corner bolts