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Rb25/34

Morgz32

By Morgz32,
in Engines & Forced Induction

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brenton21 Explorer

brenton21

Posted
Posted

I've read on the spool site 2 different stroke sizes for the RB34 so what is it 94mm or 95mm I'm confused

Maybe the earlier cranks were 95mm and the newer versions (full counterweight) are 94mm. Maybe to reduce the amount of clearancing required on the girdle.

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MRHD66 Rising Star

MRHD66

Posted
Posted

That is correct. It was reduced to 94mm for clearancing issues. Alot of people were scared about having to take to their block with a die grinder to remove material.

cool as but now it should be called a RB33 as its closer to 3.3l then 3.4l
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MRHD66 Rising Star

MRHD66

Posted
Posted (edited)

yep. I didn't think he still had the 95mm ones?

me either even tho that would be the one I'd really want did u use a standard cradle I'm thinking of using a spool cradle and main caps Edited by MRHD66
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brenton21 Explorer

brenton21

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Posted (edited)

My one works out to be 3352.8cc. With a 87mm bore though.

Depends on bore size really.

Was gunna say, if it's 40thou over (3.46 bore x 3.70 stroke) = 208.74 ci which = 3,421.17 cc or 3.4 Lt

me either even tho that would be the one I'd really want did u use a standard cradle I'm thinking of using a spool cradle and main caps

What power level are you chasing? I've read the standard caps and girdle are good for 1000 hp. I'm getting a rb34 short block from spool with the standard girdle. I'm chasing 800 ish

Edited by brenton21
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MRHD66 Rising Star

MRHD66

Posted
Posted

Was gunna say, if it's 40thou over (3.46 bore x 3.70 stroke) = 208.74 ci which = 3,421.17 cc or 3.4 Lt

What power level are you chasing? I've read the standard caps and girdle are good for 1000 hp. I'm getting a rb34 short block from spool with the standard girdle. I'm chasing 800 ish

sweet good to know
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