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JC
Be careful when you consider using 2.2 pistons with your 2.4 crank. The increased stroke boosts the 2.2 piston's CR up by about 0.5 over the 2.2 value.
2.2E pistons will give around 9.5 CR and 2.2S pistons will be around 10.3. Both are sporty for pump gas on single plug.
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Tom Butler
1973 RSR Clone
1970 911E - Sold but Never Forgotten
914-6 GT Clone
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