SKU: 43869612739

PRP RB Integrated Main Cap Cradle

Sale price$1919.97 Regular price$2133.30
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

PRP RB Integrated Main Cap CradleWe 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

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 Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43869612739

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4.8 ★★★★★
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Pauly Summers
West Palm Beach, US
★★★★★ 5
this slipper is a big surprise for the price.better than i expected better fit .
Size: 10, Color: Tan
slippers are way better than what i thought they would be .for the price did not expect much but better fit and comfortable than a lot of walmart and target slippers and i have bought a ton of them in the years past.do the job for me had them little over 3 weeks and going to get another pair for this price nice slipper. Paul, Maryland. ps just wanted to add had slippers 2 months now broke in really nice very comfortable most dept store slippers have fallen appart buy now good buy for the price. Paul,Maryland.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2023
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Verified Purchase
heismen316
Boise, US
★★★★★ 4
sizing
Size: 3X-Large, Color: Chocolate
Good quality, warm, sizing was dificult. I normally wear a size 12 shoe so I ordered an x-large but it was way too small. they shipped a size 11. Amazon was great with their free returns. I now ordered a xxx-large and they fit perfectly. x-large=11 and xxx-large=13
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Reviewed in the United States on January 3, 2013
A
Verified Purchase
Anne and Josh
Whiting, US
★★★★★ 5
Good deal
Size: 12, Color: Tan
True fit, slip resistant bottoms and comfortable.
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Reviewed in the United States on October 11, 2025
S
Verified Purchase
Steve S
West Palm Beach, US
★★★★★ 3
Slippers are nice But
Size: 11, Color: Chocolate
Slipper are warm and soft. The problem is the soles leave marks on the floor. Washed the soles, still marks everywhere on hardwood floors.
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Reviewed in the United States on October 26, 2023
K
Verified Purchase
KissThis
Boise, US
★★★★★ 5
Very comfortable
Size: 3X-Large, Color: Chocolate
Ahhhh! I think I found my slippers! They are wide enough, long enough, sturdy enough and comfortable. I might even buy a second pair to have handy.
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Reviewed in the United States on February 6, 2024

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