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PRP USA
CONTACT SALES: +61 2 5500 7523

RB Integrated Main Cap Cradle

SKU PRECIMC26-4WD-RB25N
Original price $1,949.56 - Original price $2,435.11
Original price
$1,949.56
$1,949.56 - $2,435.11
Current price $1,949.56

We are proud to release this long-awaited masterpiece, all in 1 Latest revision 4, Ductile Cast CNC machined Integrated Main cap Brace that now utilises everything we have learnt and all evolution of our standard OEM overlay brace but this time we have included billet main caps and incorporated the block brace itself in a one-piece unit! As you know, block twist is the major factor contributing to blocks cracking where our standard original brace has helped immensely! You have heard or tried billet main caps, which do not offer block twist protection at all, they are also hard to pin down and stop them floating (near impossible)

The usual billet main cap is also usually too hard, the harder the better you would think! WRONG, hard singular main caps do not absorb or disperse energy and shock, it bounces it straight back into the crank and con rods, and unless you are running alloy rods, your bearing and rotating assemblies life is actually diminished, a connected main cap brace offers a ton of positives, including energy and shock disbursement, much better twist protection, and no chance of main cap movement, even less chance of cracking the main cap.

So with all the real data and testing, we have done over the last 10 years with our braces we figured it was time to release our latest brace creation in iron, available for both the RB26 and RB30 configurations.

*This brace is for the serious racers here, it’s aimed at 1000hp plus applications, although there is no issue running this big block of precision manufactured equipment in your everyday cruiser.

*This brace has excellent thermal expansion properties closely matched to your OEM Cast Iron block, with less machine work than our typical standard overlay braces. * 12mm or 1/2 inch bolt upgrade is required, Tunnel Bore is also required (as all blocks with aftermarket bolts are required)

 *Brace comes with bolt kit in any of the 4WD/ 2WD configurations for the RB25/ 26 type 4WD, and the RB30/28/25 RWD blocks and you can convert them all to 4WD or 2WD with the right chosen bolt kit supplied.

*Block face is O-ring aided for ease of sealing. The brace is blackened (surface treated) for corrosion tolerance.

RB25 RB26 OEM 4WD Block Main Cap Integrated Cradle 4WD (PRECIMC26-4WD)

RB26 Block Main Cap Integrated Cradle 2WD (PRECIMC26-2WD)

RD28 RB30 Wet & Dry Sump Block Main Cap Integrated Cradle 4WD (PRECIMC30-4WD)

RD28 RB30 Wet & Dry Sump Block Main Cap Integrated Cradle 2WD (PRECIMC30-2WD)

 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
Warranty/Refund Policy

Refund requests will be reviewed case by case. Due to numerous factors including automatic & immediate 3rd party supplier purchase orders & merchant fees imposed on us, you might be liable to cover an unavoidable restocking/cancellation fee of ≥ 5%. Please review your purchase and consider contacting us for an ETA before placing an order. If your order is for a gearbox, specific turbocharger, engine build, manifold or something generally not in our extensive inventory, this restocking fee is based on the supplier and not dictated by PRP.

  • Effective September 2024, refunds will not be provided for change of mind, incorrect choice or custom ordered products.
  • Exchanges or refunds for items and customers that are categorized and applicable under the Australian Consumer law, requires the product/s remain unused and returned in original packaging in saleable condition at your expense to our HQ in Australia. They must return in reasonable time. PRP justifies reasonable to 60 days from date of purchase.
  • If items are damaged due to courier or otherwise neglect outside of your or PRP's control, you must notify PRP within 14 days of receipt or the claim is void.
  • Platinum Racing Products is not liable for refunds or replacements due to lost or stolen property. We will however attempt every effort to assist in the recovery of your goods.
  • We reserve the right to offer you a full or partial refund which can be applied over staged or full payment/s within a 30 day period. 
  • You agree that if you select "Authority to Leave" or similar, you waive the liability from the shipper (as per their line agreement) and Platinum Racing Products. As such, we strongly suggest sending your package to an address where someone will be available to sign for the goods and keep them secure.
  • Anodizing is done in house with state of the art equipment and we hold stock of most popular colour's. We anodize generally within 48hrs. No refund nor partial will be provided if your request is inside the 48hr period and you require urgent parts however we will always do our best to meet your needs.
  • There is no partial or full refunds on shipping where factors are outside of PRP's control. Any shipping estimates are to be considered estimates only.
  • Silicone Hose Kits: Please note that our silicone hoses have been designed and tested for the vehicle models mentioned. They may fit other vehicles with the same engine model, however the purchase and installation is at your own risk. Due to extensive model changes throughout the years, we are unable to supply or customize hoses in alternative lengths or sizes beyond what is offered. The kits might not contain every hose you want, but we have made every effort to include the series changes to cover the majority of needs. This means we might include hose/s that don't suit your series as a bonus. We strongly advise that you carefully review all photographs provided before making your purchase. PRP does not offer refunds or partial refunds for hoses that are not included in the kit unless they are explicitly shown in the photographs and missing from your delivery.

Warranty Policy

  • Warranty is for a full refund or exchange provided the item was purchased through PRP or one its approved resellers or workshops.
  • Warranty is void if you tamper with products or bring them back in a different state to which they were sold to you.
  • Warranty does NOT cover costs of shipping to and from in any circumstance.
  • All Items/Products/Services purchased from Platinum Racing Products are to be installed by a qualified mechanic at an approved workshop and ALL warranty claims are dependent on proof of appropriate installation and verification of failure.
  • 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.
  • Platinum Racing Products assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use. All our products are sold and intended for track use only.
  • Lifetime warranty refers to certain Platinum Racing Products branded components and generally does not include 3rd party suppliers and their parts. Manufacturer warranty applies to items including but not limited to alternators, turbochargers, electrical sensors, ECUs and associated parts, tyres, etc.
  • Due to customer and external components not supplied by PRP, flat drive oil pumps and components are limited to 1 yr warranty with specific cases reviewed before honoring. Spline drive will remain to have lifetime warranty, but again only after specific review.
  • All refunds and warranty claims are based on back to base review and parts will need to be returned to HQ for assessment unless otherwise arranged.