RB20 over sized valves?

[jdmser]

Has anybody done them? Is it worth it? The cheapest I've seen them is Supertechs on ebay for about $600. Is anybody else making them?

[StricNyne]

are you going to port head to match the valves, i know people had a ton of luck on dsms and oversized valves, but when dsport did their rh9 gtr write up on their rb26 they said it had a negative effect until they modified the head to same size, he rh9 gtr had a TON of good reading, on how they built a 1000hp gtr including problems, and all parts and prices and dynos charts after all mods

[jdmser]

I've already ported the head and was thinking of cleaning it up some more and adding the valves. I've also add two valve jobs done on the current set of stock valves and don't want to cut on them any more. I was also thinking that the over sized valves would compliment the new 2.4ltr displacement. Where can I find the dsport write up?
Modified by jdmser at 12:37 AM 9/26/2008

[mott6904]

What did it cost for the rb24 bottom end and where did you get the parts. thanks

[jdmser]

fast s14 hooked up the spare rb20 block, ebay supplied the rb26 eagle rods, je took care of the custom pistons using tomie specs, r33 crank came from a shop in the UK. If the crank didn't need to be fixed it wouldn't have been so bad. I'm still under $4k but, I still have to get bearings, head gasket, block bore, and new clutch.

[mott6904]

you paid 4 grand for a block, rods, crank, and pistons? what did the pistons cost?

[jdmser]

Already bought

JE pistons=$1037Eagle Rods=$350R33 RB26 crank=$300+$300 shipping+$500 to fix spun bearingRB20 Block=$100ARP Main Studs=$130total=$2717

Still needCalico Rod and Main Bearings=est $350Head Gasket=$300-$350 for Tomei or est $200 for custom CometicFull OEM Gasket kit=$150Machine work=$500est Total=$1350

Making an RB24 isn't cheap.

[StricNyne]

http://jdm-insider.com/Blogs/Eric/?p=948

http://www.dragsport.com/issue...shtml

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