PRP RB25 & RB26 2WD or 4WD Billet Block Brace

by PRP

or pay over time in interest-free installments with Affirm.

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SKU PRP RB25/26 Block Brace-1


  • RB26 or any OEM 4WD RB Block select PREC26P-4WD
  • RB26 and have removed and welded the OEM RB26 diff housing off the sump to make it 2WD select PREC26P-2WD
  • RB26 with RB25 2WD Sump Dry Sump Setup select PREC30D-2WD
  • RB25 with OEM RB25 2WD Wet Sump Setup select  PREC30D-2WD
  • RB25 with OEM RB26 4WD Sump cut to be used as a 2WD Wet Sump select PREC30W-4WD
  • RB25 with OEM RB26 2WD Dry Sump select PREC30D-4WD

This Platinum Racing Engine Cradle (PREC) has been constructed from hi-grade aircraft quality billet aluminum and the product has several features that benefits

Over and above converting your 2wd RB/RD engine block to 4wd. With the kit provided and after a few modifications, a standard GTR type sump will bolt straight on.
The Platinum Brace overlays and supports the factory main cap cradle, and main
Main Caps cease walking! Have you ever noticed shiny mating surfaces of your block and main caps? The mains are walking and moving enough to polish the mating surfaces. The platinum block brace ties in the OEM cap cradle and stops the walk
The platinum cradle is therefore cost-effective as it also does NOT utilize the standard main bolts as a place of attachment requiring spacers etc. The standard main girdle is a great design and should be retained as a one-piece item, then strengthened with the PREC, as main bearing cap walk, or movement may be experienced otherwise.
There is also a valid argument for the use of a similar metal when it comes to the main caps and expansion/contraction of dissimilar metals when you consider a billet cap, different metals expand at different rates, Cast Iron blocks should have cast iron main caps.
Aftermarket diffs crack blocks! It's a fact, the Platinum Block brace will not only stop block twist but stops the diff snapping the block under load, energy is dissipated through your 40mm thick integrated and webbed brace, blocks cracking and snapping become a thing of the past!

 Custom Color PREC30W-4WD +$200

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