Best block to build?

[Shelby85Charger]

What is the Best Block to start with? '89 Common Block?

[Shelby85Charger]

Can I use a 1990 Non-Turbo Common Block for a Turbo motor? It does not have the OIL Drain back tube. These Blocks are called 'Common' because they are all the same? Can I just Drill that hole and install the drain back tube? Would there be any other problems?

[glhsken]

Yes, I'm using an '89 non turbo block.. I actually prefer the cast crank.. 7lbs less rotating mass.

The boss is on the block, simply have it drilled and the drainback pressed in.

[Aries_Turbo]

i forgot to have the machine shop bore the hole while the block was there so there is a custom drainback tube in the oilpan.....i had to do a bit of creative mods to get that thing in brazed in there and clear the cv joint but i did it.

Brian

[glhsken]

Quote:

Originally posted by Shelby85Charger So Ken that isn't a bad Block to use? What about the Coolent line return from the Turbo? That needs a Threaded hole in the block, is that normally there from the factory? I appears that it is there.

That hole will have a plug from the factory... Mine does. Just pull it out and swap the turbo fittings in.

[glhsken]

Quote:

Originally posted by Shelby85Charger So Ken that isn't a bad Block to use?

Better not be or I'm wasting a WHOLE bunch of $$$ :big grin:

[Shelby85Charger]

So Ken that isn't a bad Block to use? What about the Coolent line return from the Turbo? That needs a Threaded hole in the block, is that normally there from the factory? I appears that it is there.

[cawcislo]

Also would you not have to drill between the cylinders for the cooling of the cross drilled head? Don't turbo blocks have the extra hole crossdrilled? I believe so.

When I removed my TII block out of my 88 Shelby Z daily driver, I needed a quick engine replacement. I installed an 85 TI block with my 88 cross-drilled head. It seems to work fine as long as you don't install a TII head gasket. The TI head gasket just covers the cross-drilled holes and opens up the other cooling paths. It's been 30,000k since and not one problem, and I haven't turned down a good race at the lights yet.

BUT..., if you take the time to create the holes on the block, you will "supposedly" gain better cooling performance for your head. I can't say for sure.

[Shelby85Charger]

That wouldn't be a problem for me to inspect the location of the 'Crossdrilling' in my TII block and locate them on the '90 N/A block. I am a mechanical Design Engineer (Inspector) by day. So If I decide to buy this block I will take to time to do all that. I have a good friend that owns a 'Bridgeport' that I could use to actually do the drilling. The '782' Head that will be coming along with this block isn't 'Crossdrilled' either (does have the Turbo Exhaust Valves). The Intake ports have been slightly ported and polished on this head. Nothing has been don't to the Exhaust ports. I may can in and se what I can do with them, maybe just a gasket match.

So maybe I'll take the time to drill them as well, why not. Again, I can inspect my '87 TII '782' head to locate the holes.

Any other advice?

[Shelby85Charger]

Ken,
Are you running yor Common Block with the Balance Shafts in?
Did you drill the 'Crossdrilled' holes in your block?
What is the factory Bore of these Cylinders?
What is the Factory Piston O.D.?
Is there any differences between an '89 & an '90 Common Block?
This one I'm looking at has a casting date of 11/16/90.

Thanks again!!

[glhsken]

Factory bore = 3.444" or 87.5mm

Common blocks are common blocks

Yes I will drill my block for the crossdrill.

2.2L commonblocks do not have balance shafts.

[MVaughn]

Ken are you sure about all the common block 2.2's not having a balance shaft? I can't remember if it was a 90 or 91 that had the balance shafts in it.

[glhsken]

The only 2.2's I know of with balance shafts were the R/t's.

[MVaughn]

And I think the vnt cars as well.