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Old 04-15-2014, 07:00 PM   #1
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b204,b205 block/ rotating assembly fitment?

Ok, here's my dilema. I have a 2001 9-3 and i'm planning on doing some performance mods in the near future. I don't know that ill ever need new pistons or not depending on how in depth i will go, but im trying to plan for the worst. Id like to try to stay away from buying salty aftermarket pistons, and i don't have all the necessary equipment to do an engine swap. Id like to pull the head and drop the pan, which gets to my main problem. Does anyone know the possibility of 204 pistons paired with 205 rods, block and crank, or 204 pistons and rods, in a 205 block and crank? It may sound completely ignorant, but its been on my mind now and i'm just plain curious! Let me know your .02
Thanks!
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Old 04-15-2014, 07:42 PM   #2
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Rods and pistons have to stay matched, but either will work with either crack our block. The wrist pin heights and rid lengths are different, but the crank centerline to deck distance is the same for both blocks.
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Old 04-15-2014, 08:00 PM   #3
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So, just to be sure, 204 rods and pistons in a 205 block will work? With the crank at TDC, the 204 rods wont be too long and protrude above the deck hitting valves/ head gasket/ head? sorry for all the questions, just want to be sure!
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