MRP 16V/20V 4AGE Main Reinforcement Caps | AE86 AE101 AE111
-For high rpm use
-Strengthens bottom end ladder caps
-Machined from 4340 Billet steel
-Nitrided
-Fits only with ARP Mainstuds
-Compares similarly to Tomei reinforced main caps.
MRP has done it again. With many years dealing solely in 4AGE/7AGE performance, MRP has been able to identify any weaknesses in Toyota's 4A/7A design when pushing their builds to and past the 600hp mark. With sustained high revs or tremendous amounts of boost, the main caps begin to stretch as a result of the massive amounts of torque exerted by the crankshaft.
The crankshaft won't likely break, but any distortion of the main caps will allow centralized stress points on the engine main bearings if allowed to on for any measurable amount of time. By machining a backbone for the main caps out of a higher grade steel than the OEM main cap, MRP's reinforcement caps can help to retain the integrity of the lower block.
We recommend using this MRP product when consistently revving your 4AG past 8000rpm, or if you are making more than 250hp with the help of forced induction/nitrous injection.
***These main caps will only work with ARP main studs*** This usually works out, as engine builders often upgrade to ARP main studs when building a high performance 4AG.
**This item stocked in California**
Included in this kit are 5 MRP main caps, and a printed instruction guide. ARP main studs are also available through Battle Garage Racing Service elsewhere on this site.
We have these in stock as well as other 3SGE BEAMS, 16V and 20V 4AGE maintenance and performance parts.
We also have lots of AE86 performance and suspension parts in stock. Take a look at our eBay store!
If you are within the Continental USA you can expect to receive your product within 2-5 days (now including Saturday deliveries!) unless notified.
IMPORTANT:
- Double check shipping address. We are not responsible for incorrect or undeliverable addresses.
- Some of the packages cannot be delivered to a PO Box. Package will be held until a valid physical address is provided.
- International buyers are responsible for all customs duties, taxes, and other applicable fees incurred by the country's customs/border regulations.
- If being sent to Canada, USPS does not charge a brokerage fee but all other carriers do. Please specify whether or not you want an item sent by USPS. There may be additional charges for this.
Please understand that we can only accept returns on items that are in brand new, unused / installed condition!
Please be careful when purchasing to ensure that the product you are purchasing will fit your car. Please contact us if you have any doubts.
All returns may incur a 20% restocking fee, at our discretion. This is to help us cover the postage, labor, and time if the part purchased is incorrect for your application. We will do what we can to help you make sure you are getting the right part you need.
Who are we?
Battle Garage Racing Service has been exceeding customer expectations since 2011. Founded in Northern California, our mission at BGRS is to focus on providing unique and high quality solutions for the everyday car enthusiast.
