BadAss SRT-Z - 2.4L / A568 - Update!!!

[turboshad]

90ish cold, 25-30psi at hot idle and hig 50s to 60 at cruise from what I can remember. Sure wish I could just take it out right now and get you a solid answer.

[Shadow]

FWIW I've been running Mobil 1 10w30 from day one and haven't suffered a single engine failure Or turbo failure. (or tranny failure for that matter) (Big Knock on wood!

[BadAssPerformance]

Sooo.... it turns out the early 2.4L blocks and 2001+ 2.4L blocks are a little different. The oil tap on the back on the later blocks lines right up with the starter I took pics for a KC article (whenever we un-F the KC... Frank?)

After some boss grinding.... primer is drying

[135sohc]

Rbryant had an article showing the differences between the early 2.4, late 2.4 and the turbo 2.4 blocks.

[contraption22]

I'm pretty sure those arent the only differences. Check your oil passages.

[glhs0426]

I'm pretty sure those arent the only differences. Check your oil passages.

Specifically the oil return on the front of the block between cylinders 3 + 4. The block on the right is an early production (before 12/31/2001) block from a PT. The block on the right is also from a PT but after 01/01/2001. Some cylinder heads have the corresponding large boss and a large oil return. Some clylinder heads had a large boss cast into the cylinder head, but had a small return hole. This cylinder head would work with either block. Early heads had a small boss and oil return and will have a crankcase leak when used with a block having the large oil drainback.



There are other differences. I can't remember if you use the factory crank sensor, but the later blocks (?2003? NGC computer) had the crank sensor on the front of cylinder 4, and the earlier blocks had the crank sensor on the rear between cylinders 1 + 2.

[BadAssPerformance]

I noticed that boss was larger there, but the hole looks like it will work...

Old and New pics attached... Both are N/A blocks, old one I think is '97, what year is the new one?

You can also see the oil boss on the back I had to grind down (pic pre-grinding) for starter clearance

[Shadow]

whenever we un-F the KC... Frank?

Ya, what's the hold up!

[glhs0426]

Learned more information. Thanks JT. You have a block made after 01/01/2001. It has all the block revisions, but not all the block machining. The oil drain will work with your 97 cylinder head.

[BadAssPerformance]

Cool deal... so whats that other block you have from?

[glhs0426]

Cool deal... so whats that other block you have from?

2004 PT turbo. When I finally get to building the 2.4 that is the block.

[BadAssPerformance]

Gotcha... is the N-SRT-4 block the same then?

[glhs0426]

Gotcha... is the N-SRT-4 block the same then?

Yes, even as far as the same longblock. The differences were the accessories and intake manifold. The non-turbo used the same bare block except for the turbo drain not being machined. Same idea as the 2.2 Turbo vs. non-Turbo.

[BadAssPerformance]

Cool...

[BadAssPerformance]

[cordes]

Looks great JT. Sorry for missing it, but why the new block? Did the oil pump destroy things?

[BadAssPerformance]

Thanks

Well, after pump #2 I figured I would just start with a fresh bottom end and see what I could salvage off the old one and keep as a spare? Not sure how that plan is gonna go tho... I think I posted a pic of the chip filled sludge in the pan?

New shortblock is bolted in! old one on the stand for diagnosis...

[cordes]

Thanks

Well, after pump #2 I figured I would just start with a fresh bottom end and see what I could salvage off the old one and keep as a spare? Not sure how that plan is gonna go tho... I think I posted a pic of the chip filled sludge in the pan?

New shortblock is bolted in! old one on the stand for diagnosis...

Thanks. That's what I was thinking you had going on. I'm eager to see what the score is with the old block. That was an interesting problem.

I'm just as eager to see what you will do with all those shiny new pieces. This should be a great year for you.

[BadAssPerformance]

Update... head is on, just set up the timing and bolted on the ATI damper... still got the alternator, manifolds, turbo, downpipe, IC piping, etc, etc to put on, re-plumb oiling, fabricate new crank trigger setup... ok, back to the garage!

[Austrian Dodge]

Update... head is on, just set up the timing and bolted on the ATI damper... still got the alternator, manifolds, turbo, downpipe, IC piping, etc, etc to put on, re-plumb oiling, fabricate new crank trigger setup... ok, back to the garage!

thats exactly what i'm interested in
is that damper a press fit on the crank?