Precirotate .21 Racing Engine (PR21BS)- 5+2 port with Modified Sleeve plus Ramped and Balanced Crank $199.99 USD - CLOSEOUT PRICING (Reg. $250.00)
Description: PR Racing .21 engine. This engine is a 5 + 2 port racing engine with turbo plug. Head is black in color with milling on 4 sides and graphics on top. The sleeve on these motors are modded around all intake ports. Additionally, the PR21BS motor has a modded crank with ramping and balancing.
See PR website for additional details and photos.
http://www.pr-rc.com