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2.3l 4g63 vs 2.4l 4g64

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Old Mar 2, 2010 | 04:16 PM
  #91  
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just wait till you get the funds first then you said 2months so you have that long to look at other peoples setups and see whats going down. you need at least 4500 before you even ready anywho if your going with 2.4 br and 3550 if going with 2.3 br or you can build your own of both alittle cheaper then those prices
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Old Mar 2, 2010 | 04:19 PM
  #92  
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Where in NY are you located? I am headed to CT here in a few weeks.
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Old Mar 2, 2010 | 04:52 PM
  #93  
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I've been asked to chime in, so here it goes. I'm not a fan of long stroke motors being pushed to excessive rpm. They're fine in typical street use, but longer strokes equal higher piston speeds for any given rpm, more heat generated from friction, and less high rpm durability. Anyway, just a few things to consider:

Longer strokes increase mean piston speed, regardless of rod ratio. Higher mean piston speeds shorten the lifespan of any engine through added friction, heat, and mechanical stresses. Higher mean piston speeds also expose the shortcomings of the EVO head, etc., earlier. This is at least partly why the 2.0L engine remains so popular with the racing crowd.

Oil squirters are used to remove heat from the piston. More hp equals more heat. Why don't Fords and LS engines use oil squirters? Because a 600hp long stroke 2.0L 4-cyl generates as much (or more) heat as a 1800hp 6.0L V8 per unit of piston area, and that is a bit outside of Ford and Chevy's design intentions. Many smaller displacement OE engines have squirters (Honda, BMW, Mitsubishi, etc.) to reduce heat, and many more race engines have them for the same reasons. Less heat accumulated at the piston means better detonation control while under load and ultimately better engine life.

I've caught wind here and there of 4G64 blocks with some core shift evident, and/or other structural cautions that may make some better than others. I never cared enough to look into it further (those who've used them know more), but anyone who considers this route should do their homework. I do know that some go through several 4G64 blocks in selecting one, and that tells me something. Structural failures usually result in the end of the engine, so it's worth investigating.

Last edited by Ted B; Mar 2, 2010 at 04:54 PM.
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Old Mar 2, 2010 | 05:16 PM
  #94  
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Thanks Ted!!!
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Old Mar 7, 2010 | 11:44 PM
  #95  
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Originally Posted by bbyevo8u
Thanks Ted!!!
+ 1

Last edited by 38six; Mar 7, 2010 at 11:50 PM.
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Old Mar 7, 2010 | 11:51 PM
  #96  
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Is the AMS 2.3RR = 2.4l, and does any other shop/engine builders offer any thing like the AMS 2.3RR ?

Last edited by 38six; Mar 8, 2010 at 12:01 AM.
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Old Mar 7, 2010 | 11:59 PM
  #97  
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^ Yes English Racing can build you one and Greg at GSC sells the 2.2 Long Rod.

Mikey
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Old Mar 8, 2010 | 06:50 PM
  #98  
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AMS 2.3 is a 97mm stroke as far as I recall. We can build a 97mm stroke motor if the cranks are still available and do a long rod. I have to go back and look at my compression height stuff and see where it ends up if its one I really feel like doing as a long rod though.
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