Boss 302R Heads Interchange On GEN 1 Blocks

dlarsen

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Between 2011 and 2014 the 5.0 Coyote used two different GEN 1 block configurations;
  • 2011-2012 used 12mm head bolts
  • 2013-2014 used 11mm head bolts.
Can 2011-2012 Boss 302R heads (12mm head bolt) be used on a 2013-2014 block that has 11mm head bolts?
Part Numbers for the heads are; M-6050-M50BR (left side) and M-6050-M49BR (right side)
Thanks
 

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