Need advice.

Does anyone have any opinion or advice on this? I have a speed6 that I bought with a "built" motor. Long story short cylinder 2 and 3 are poo poo. It's already bored over so as far as I know my options are either sleeves in the 2.3 or a 2.5. My concern is the sleeves are way more expensive, but I feel like I'm taking a step back from the forged rods and pistons, studs and bearings I already have if I go the 2.5 route? Any advice?

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What is bad about the motor? How do you know it needs to be bored again?

 

Cylinders 2 and 3 have like a swell. I don't really know what to call it. Right where the two cylinders line up with the coolant channel that runs between them on the exhaust side the diameter increases. Like the wall got hot and warped. I was having issues with compression and terrible crankcase pressure. 2 catch cans and a valve cover vent and I was still blowing out seals.

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So you need a new block. Do you know what the current block was bored out to? It's possible that they went big enough that it should have already been sleeved

 

I don't have the measurements on me, but they were around 3.46. That's what I'm trying to figure out. If I'm better sleeving my block and retaining my forged internals, or going the 2.5 block route.

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The benefit of the turbo block is the already present ports for the turbo drain and feed.

Sleeves really aren't expensive. Yes they need to be pressed in and the block made to accommodate them but if your actual internals aren't bad then it would be an easier route to tear it down, get sleeves, and take it to a machine shop for the work. Then once the sleeves are done being installed just reassemble the engine and you're good to go.

You could also make other improvements while you're in there if that's what you want to do. Get upgraded cams, set the lash, do some porting and clean flashing out of the ports. Upgrade the valves etc.

It comes down to patience and how much you're willing to spend. Do you need the car right this second? If so get a used engine for about 2k, drop it in and make sure your mods are safely tuned for a stock engine until you get the other one done.

 

No it's absolutely not needed immediately. However I'm not super keen on spending a ton either. I just bought the car 2 years ago and haven't even really been able to enjoy it. Spent the first year chasing down problems, and then parked it for a year. I don't want to be cheap about it necessarily and I'd like to do it right, but I'm not thrilled I'm in the position I am and don't want to just piss money into it either. So it seems like the sleeves are the best way yo go. Ironically I seem to be having a hard time getting a place to do them. The first shop I called said sleeving it would mess up the girdle and would have to be line bored. The second shop I called said it had to ship it to darton to get it done.

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