This is the New Era Evolution .21 to .30 Big Block Conversion Kit REV111 for the Traxxas Revo truck.
This is what New Era writes about their kit:
This kit allows the installation of any big block engine, no matter how long with your stock suspension. You can make any suspension changes. Many new .28 and larger engines are longer than their .21 sized siblings, and will not fit even with our modified upper arm.
Using this kit allows use of the stock clutch and flywheel, or upgrade to 1:8 scale clutch componets.
Will Fit all Engines Including all Pull Starts. Super Complete with every nut bolt and washer needed. Uses stock rear arm. NOTE: engine angled to maintain proper balance (all parts are serviceable). This kit is for use with stock clutch bell, stock flywheel, and stock clutch shoes, and can be upgraded 1/8 scale clutch components later too.
Diablo .28 pull start pictured WILL FIT with pull starts: Top.28, RB28, Sirio27, Wasp.28
KIT INCLUDES:
Linkage bracket with linkage upgrades
.21 to .30 pull start engine Motor Mount
Special Clutch Nut
Tune Pipe wire
Shims and hardware PLEASE NOTE: You will still need to purchase an exhaust header and tuned pipe to fit the big block engine you choose to install along with this kit. The picture shows how a header was cut and modified to work with a typical 1/8th scale tuned pipe.
MADE IN THE USA!