Possible ih block cast mark?

[M249cummins]

I believe this motor is a 96-97 12v, building it for a 800hp puller. While cleaning it I noticed this mark, it's an IH block correct? Also are England rods different in the manufacturing process than USA rods?

 

[Financial Mistake]

Had this exact same block in my 98 12 valve. IH block and England rods, two oil return ports as well.


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[Financial Mistake]

Curious about the England rods as well, as I still have them and if they aren't terrible I'd like to use them if I ever get around to building another short block, as $3000 for billet is just never going to be in the budget.


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[bigstacks95]

The England, USA, Brazil, and Mexico rods are all pretty much the same. I have heard the Japan rods aren't quite as good but still 1000+ HP capable.

That is a USA/IH casting block, good find! They say they are stronger with more nickle content. I have blown up both USA and Brazil blocks :hehe:

 

[97rada]

The England, USA, Brazil, and Mexico rods are all pretty much the same. I have heard the Japan rods aren't quite as good but still 1000+ HP capable.



That is a USA/IH casting block, good find! They say they are stronger with more nickle content. I have blown up both USA and Brazil blocks :hehe:

What power were you?

 

[Exodus]

I just build one of those IH blocks myself. Came with a cracked brazil head. Had to find a USA head to match the block.

 

[bigstacks95]

What power were you?

I burned a camshaft into a block from too much spring pressure on a USA block, then did the same on a Brazil block before discovering what the problem was.

Currently running on year 4 of my USA cast IH block at roughly 1000ish HP in my 2.6/3.0 truck. Filled, bored .040 over

 

[M249cummins]

unfortunately I got it with a brand spanking new head that is a Chinese reman, has about 10 minutes of runtime on it. didn't come with the original head.


Taking it to Wagler Comp before I head to work. torque plate hone the cylinders, deck the block if needed, line hone the mains, remove the intake shelf off the head, o-ring the head.

people seem to be iffy about using a Chinese head but its what I got, its new and I have no actual proof why not to use it, I'm going to use it.

 

[jasonc]

A buddy of mine ran a cheap china head for about a year on a strong running street truck 12v, he blew the head gasket and pulled it, I know they all crack but that head was the worse I've seen. Almost looked like shattered glass around the injector holes to the seats.

 

[jedeka]

I would recommend installing cam bushings all the way thru the block.

 

[M249cummins]

I would recommend installing cam bushings all the way thru the block.

I thought about it, still considering it.