OEM RB30 rods and pistons vs RB26

Discuss the RB20, RB25 and RB26 series engines.
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ANVIL
Posts: 1133
Joined: Sun Apr 08, 2007 11:36 am
Car: RB25DET S13.5
Location: Alaska

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What are the differences?

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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stroke and bore are different, they will not interchange.
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RRRRB
Posts: 759
Joined: Wed Jun 01, 2011 9:31 am
Car: 98 RB powered S14
Location: WA

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Bore size is the same, rb30 rods are much longer, rb30 pistons have multipe compression ratios/ dome styles, and no cooling channel provisions.
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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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what i meant to say is that the wristpin heights are different...at least from what i remember.
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