This particular Cosworth 86mm Forged Piston has been designed for the 4B11T Stroker, and features a 10:1 compression ratio. The Cosworth 10:1 pistons are a great addition to your 4B11T build. These pistons have been designed to withstand high performance driving conditions, and endure the same manufacturing methods that create the Formula One piston.
One of the better attributes of this piston is the anti-scuff skirt coating, as well as polished tops, and patented anti-detonation bands. Plus, the Cosworth pistons endure a unique forging process that minimizes weight that ensures for one of the strongest pistons available on the market.
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.