O-ringed Cylinder Heads / 6.0 Powerstroke (Set of 2) FREE shipping

$2,750.00

18mm dowel

The main consideration is matching the dowel size to the block you have.
Because so many heads have been swapped over the years, the information below may not apply.
18mm head dowels were used from Model Year 2003-2006.5 and had casting #s 1843080C1 thru C4. Example: a 2006 Model Year truck that was built in 2005, came with 18mm head dowels from the factory.

20mm Dowel

The main consideration is matching the dowel size to the block you have.
Because so many heads have been swapped over the years, the information below may not apply.
20mm head dowels were used for Model Year 2006.5 & 2007 with the casting #1855613C1. The rocker box bolt size and location changed, along with the fuel injector holddowns and are not directly interchangeable with the components for the earlier 18mm dowel engines.

High Rev valve springs

High rev valve springs are stronger and close the valves quicker than stock springs which eliminates the possibility of the pistons hitting the valves in high rev applications which using a tuner, primarily in racing and pulling competitions.

Description

SOLD AS A SET   – Price includes shipping to the continental U.S.

NO CORE DEPOSIT OR RETURN REQUIRED

These are Ford OEM re-manufactured cylinder heads, NOT the cheap $325.00 Chinese castings that other companies sell.

O-ringed cylinder heads apply more pressure directly to the head gasket sealant around each cylinder to help prevent future head gasket issues.  We do a special valve job on every O-ringed head which substantially increases airflow, which can lower  Exhaust Gas Temperature and increase both performance and fuel mileage.

Remanufacturing process includes: 

  • Complete disassembly and cleaning of cylinder heads
  • Magnafluxed for cracks
  • Pressure tested
  • resurfaced flat with a finish compatable with OEM style multi-layer head gaskets
  • Multi angle performance valve job with a special cut for increased airflow
  • O-ring grooves machined into deck
  • O-ring wire installed
  • Painted with high temp paint
  • Assembled with OEM valve springs with proper set spring pressure, spring height, stem height and valve recession.
  • Optional high rev valve spring set available for purchase.  (check the box to order)

Additional information

18mm dowel

The main consideration is matching the dowel size to the block you have.
Because so many heads have been swapped over the years, the information below may not apply.
18mm head dowels were used from Model Year 2003-2006.5 and had casting #s 1843080C1 thru C4. Example: a 2006 Model Year truck that was built in 2005, came with 18mm head dowels from the factory.

20mm dowel

The main consideration is matching the dowel size to the block you have.
Because so many heads have been swapped over the years, the information below may not apply.
20mm head dowels were used for Model Year 2006.5 & 2007 with the casting #1855613C1. The rocker box bolt size and location changed, along with the fuel injector holddowns and are not directly interchangeable with the components for the earlier 18mm dowel engines.

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