4.0L HO Jeep Engine Build
Good eye catching them stress cracks. Those locks look like the ones the Magnum heads use.
Thanks Fishy. Interesting that you brought that up. The valve stems are 8mm. These engines actually have a lot in common with the Magnums:
They use the same valve spring shims.
They use behive springs.
They have 8mm valve stems.
They use Magnum intake valves (with the correct square single groove keepers).
They use Manum valve spring retainers.
Chambers are closed.
Intake valves are 1.92 (EX are 1.50).
Rods are 6.123" (although the factory spec is 6.123" to 6.125".... And they used every thousandth, lol).
They use a .904" lifter.
They have a 1.6:1 rocker arm ratio.
Kinda freaky.... :read2: If it had two more cylinders it would be 5.3 liters too. Each cylinder displaces .666 of a liter. Wierd. :toothy10:
