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Hey everybody.

I had worst luck with my build, custom ordered cp piston kit 86mm for rb30 with rb25det head. CR 10.0 :1

Well block didnt turn out to be good enough with honing only.. So i have to order a new set of pistons again, 86,5mm this time.

I have to sell these pistons and i would like to know can these be fitted to normal RB25 or RB26 engine and what would CR then be?

These would be easier to sell if can be fitted many engines.

I tried to look calcs but Im sure somebody knows these better than me!

Pin height 1.28 inch etc. just same cp piston kit than normal rb25/30 kit but with higher dome, (Don't know dome CC, doesnt say).

I think i don't have the time for wait another 4 weeks for custom pistons, have to go faster way. Automotiveonline2012 has kit with 9,0:1 CR on ebay so think i go with that. Its brisbane, AUS so somebody got experience with that seller? I'm from Finland so that's why asking.

Thanks advance

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https://www.sau.com.au/forums/topic/421553-custom-piston-kit/
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  • 2 weeks later...

someone had a BRAND NEW genuine holden/nissan vl mootor for sale in fs section.

think it was around 2-3k.

might be the go.

dont need crank done.

dont need bearings.

just change for your pistons, and swap rod bolts to arp.

I asked for these pistons can be fitted to rb25/26 or not.

Didnt get any help here, but thats okay. Somebody bought these pistons already and i ordered new set of pistons straight from US with bargain price. I get them next week.

I have already crank done, crank collar, acl bearings, rods etc... New set of pistons was alot cheaper than buying new block from aus, shipping it another side of the world. Not to mention time spend on that, crazy idea :D

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