PRP Dry Sump Block Brace - Nissan RB25/RB30/RD28
The Platinum Racing Engine Cradle (PREC) has been constructed from hi-grade aircraft quality billet aluminum and the product has several features that benefit.
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 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, the harder the cap, the less shock is absorbed, the more detonation becomes critical as it has no place to go but into the rods.
We recommend this system up to 1000wheel HP, then our integrated main cap brace over 1000 hp.
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!
The bolt kit is included with the brace however the APR upgrade kit is extra if it is required
*PLEASE NOTE: 1/2 inch ARP upgrade, requires block machining for fitment.
Any questions please ask.
Shipping Policy
- We endeavour to ship all regular and stocked items on same day, next day or within 5 business days of your order being placed
- Custom orders may take longer than regular shipping times but will have information about shipping time on the listing
- We take extra care in packaging your orders to ensure you quality parts arrive safely
- PRP accepts no responsibility for damage or loss to items/products/services from courier or shipping companies once we have received receipt for the third-party service
- All Items purchased from PRP are to be installed by a qualified mechanic at a licensed workshop
- Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy
- PRP assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use, as all our products are intended for track use only