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Old 11-15-2005, 06:48 PM   #1
keaniegenie
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Default What is the difference between a standard STI shortblock and a Crawford S2 shortblock

When I visit Crawford Performance's website, the only distinguishing difference between a standard STI shortblock and the S2 is the pistons. Is this right?

I'm looking to buy a 2.5l block, and a reconditioned S2 block is $1750. That's about the same as a new STI block.

New S2 blocks are $2250, the difference between a STI block and an S2 is about $500. Basically the cost of pistons. Is this right?
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Old 11-15-2005, 07:06 PM   #2
burnin4
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i think the only diff between a stock STi block and crawfords S2 is forged pistons. Hope that helps!

Quote:
Originally Posted by keaniegenie
When I visit Crawford Performance's website, the only distinguishing difference between a standard STI shortblock and the S2 is the pistons. Is this right?

I'm looking to buy a 2.5l block, and a reconditioned S2 block is $1750. That's about the same as a new STI block.

New S2 blocks are $2250, the difference between a STI block and an S2 is about $500. Basically the cost of pistons. Is this right?
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Old 11-15-2005, 07:16 PM   #3
WSSBOARD18
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The difference is forged pistons and they change the compression if you want to use the block with stock wrx heads.
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Old 11-15-2005, 09:58 PM   #4
Crawford/I-Speed
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The S2 can actually be made to your desired Compression Ratio (with-in reason). This is done by designing and manufacturing proper pistons, not by changing the thickness of the head gaskets.

Chris
I-Speed USA
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Old 11-16-2005, 04:05 PM   #5
keaniegenie
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Quote:
Originally Posted by I-Speed USA
The S2 can actually be made to your desired Compression Ratio (with-in reason). This is done by designing and manufacturing proper pistons, not by changing the thickness of the head gaskets.

Chris
I-Speed USA
Basically they make custom forged pistons based on your compression goals, correct? Or are there 2-3 sets of pistons that you choose from.
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Old 11-16-2005, 06:04 PM   #6
the_colombian
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Quote:
Originally Posted by I-Speed USA
The S2 can actually be made to your desired Compression Ratio (with-in reason). This is done by designing and manufacturing proper pistons, not by changing the thickness of the head gaskets.

Chris
I-Speed USA
wish I would have known this.
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