Honda/Acura Tech Honda tech discussion.

will b16 pistons fit in a b18b1 motor

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Old 09-09-2008, 03:51 PM
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Cool will b16 pistons fit in a b18b1 motor & is it worth it???

will b16 pr3 pistons fit in a b18b1 motor and if so would it be worth my time to do it i already have the pistons just need rings, bearings and rod bolts thanks for any info

Last edited by bo91teg; 09-09-2008 at 04:48 PM.
Old 09-09-2008, 03:54 PM
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yes.
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Old 09-09-2008, 04:36 PM
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yes all b-series blocks are 81 mm factory anything mor either has been bored or another series ( b20)
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Old 09-09-2008, 04:43 PM
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thanks but is it worth it to change stock ls pistons for stock b16 pistons
Old 09-09-2008, 04:58 PM
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You will raise your compression significantly.
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Old 09-09-2008, 05:01 PM
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ZealAutowerks - Honda Compression Calculator

b16 pistons in an ls block will put you in the neighborhood of 11.4:1,which would be a nice CR to be at if you plan on going all motor.
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Old 09-10-2008, 05:21 AM
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You have to press the pistons onto the ls rods which cost about $40 at a machine shop. Arp rod bolts are about $50 shipped.
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Old 09-10-2008, 11:42 AM
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yes ive been told ls pistons dont have enough vavle relief...
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