# Subie went boom **URL:** \ **Category:** Shift518 Automotive\ **Created:** [May 24, 2009, 6:30pm UTC](https://forums.speedlife.net/t/subie-went-boom/244338 "2009-05-24T18:30:44Z")\ **Posts on this page:** 1\ **Showing post:** 15
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [May 25, 2009, 11:51am UTC](https://forums.speedlife.net/t/subie-went-boom/244338/15 "2009-05-25T11:51:24Z")
> [@Kaisertown??? where is it?](https://forums.speedlife.net/t/kaisertown-where-is-it/18485/4): > > I got one about the transmissions. do you have more info about engine block replacements? > > I’m starting to think that a built 2.5rs block is going to be my best bet right now as I’m being pushed to simply fix the car so I can use the car to commute to work. If I can get a built block that won’t require additional parts or wiring I might be able to get it dropped in there without too much hassle. Find out what block you have(phase 1 or 2). Phase 1 ended in 98 but some 99’s carried over phase one and some 98’s were updated with Phase 2 motors. Was a random run of the mill as to what you would end up with. I would look for a phase 2 block with the larger rod mains(52mm) and 5th main thrust, Get matching heads and intake manifold as well!!! Port configuration is different between the two phases and the intake manifolds are required. Different bolt configurations at the bellhousing but bolt up to the EG series bellhousing just the same. Look for a phase 2 RS motor up to '05. Use you’re heads/manifolds and swap over the CPS reluctor wheel/timing sprocket on the crank. You can use an Sti phase 2 block, but unless you immediately put forth the necessary components and tuning to turbocharge it you’ll be driving a low CR pig. I have Moon’s shop car motor here for a rebuild now. Was a built 2.5RS phase one that failed(rod main, 49mm) that failed due to oil starvation on the dyno… Lots we can discuss, all depends on how much $$$ you can throw at it to get it done at CBRD. --- _[View the full topic](https://forums.speedlife.net/t/subie-went-boom/244338)._