jerryb Posted October 7, 2009 Share Posted October 7, 2009 My RB20 has two heavy stiffeners joining the block to the tranny. How critical are these to the intergrity of the engine/tranny when increasing power? Im thinking of building an aluminum oil pan with a much bigger sump. I can build the sump forward into the angled portion of the oilpan and/or build it back as there is a ton of room. Any of you run "high" power without these stiffeners without detriment? NISSAN must have put them there for good reason??? Quote Link to comment Share on other sites More sharing options...
stony Posted October 7, 2009 Share Posted October 7, 2009 They do provide strength to the block... with that said i have been running mine (750+hp) without them for a while now and i know lots of people that have been running without for a while. Quote Link to comment Share on other sites More sharing options...
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