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Ultimate Budget Slap Together Rb2630det

Cartman

By Cartman,
in Engines & Forced Induction

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Cartman Rising Star

Cartman

Posted
Posted

hey all just got a couple of quick questions as i'm slapping together a rb2630 out of parts i have laying around... 

the plan is to slap one of my 26 heads i have laying around onto a good condition standard rb30e bottomend i have aquired.. i have everything laying around for this except for the timing belt kit and my head bolt/stud issue.. 

my main question is about the head bolts/studs considering the 26 runs a larger size... 

Will there be any problems with me just using arp rb25 head studs? with out getting anything else even tho sleeves to sit in the 26 headbolt holes to comensate for the narrower head stud would be ideall... but this is a very very budget slap together out of parts i have laying around unless there is somewhere i can buy those sleeves providing they arent to costly... 

OR would i be better to take the complete short block into the machine shop and see if they'll drill and tap it with out pulling it apart (i dont think they'll like that idea :) )

Thanks in advance

Wazz

Cartman Rising Star

Cartman

Posted
  • Author
Posted
You can use rb25 studs as some guys here have, no modifications to the rb30 holes

Sure you dont want to freshen up the bottom end b4 u slap it together?

nah.. no need to freshen it up.. this is just a slap together out of boredem, motor was in good working order with good compression before it was pulled out... only reason it came out was for a 2530det to go in

spoke to the machine shop today and they've said just use 25 studs aswell as the head is doweled so there shouldnt be any problems with slop in the head

The Mafia Grand Master

The Mafia

Posted
Posted

Just do what I did and order a set of Durapro Bolts. Cost me $50. Nissan quoted $180 for a set of standards..

The Durapro and Nissan bolts are the exact same torque settings. The engine builder said they may even be the same bolts.

Cartman Rising Star

Cartman

Posted
  • Author
Posted
Just do what I did and order a set of Durapro Bolts. Cost me $50. Nissan quoted $180 for a set of standards..

The Durapro and Nissan bolts are the exact same torque settings. The engine builder said they may even be the same bolts.

nah, goin studs. 

STATUS Grand Master

STATUS

Posted
Posted

use new studs, i can tell you now reused ones fail. We tuned a 250000km $150 wrecker NA rb30e (still single cam) @ 22psi (300rwkw) and the brand new gasket failed due to poor clamp pressure (pushed into coolant channel) fitted new studs and it has run like a charm.

Duncan Grand Master

Duncan

Posted
Posted
spoke to the machine shop today and they've said just use 25 studs aswell as the head is doweled so there shouldnt be any problems with slop in the head

good call.

bolts job is to clamp, dowel's job is to locate. should be fine

Cartman Rising Star

Cartman

Posted
  • Author
Posted
use new studs, i can tell you now reused ones fail. We tuned a 250000km $150 wrecker NA rb30e @ 22psi (300rwkw) and the brand new gasket failed due to poor clamp pressure (pushed into coolant channel) fitted new studs and it has run like a charm.

nice work trent :) thats goin to be about what i'm aiming for out of my 275000km running fine rb30e, 10cm t67-25g should be lots of fun on it :banana: 

Cartman Rising Star

Cartman

Posted
  • Author
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good call.

bolts job is to clamp, dowel's job is to locate. should be fine

they put it almost identically to how you've worded it there, i have a feeling this budget slap together is goin to make for some good fun :) 

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