• Articles
  • Cars for Sale
  • Classic Auto Parts
  • Service Manuals
  • Contact

HorsePowerSports

Horsepower Classic Cars and High Performance

Crate Engine Swap Kit Puts Motus American V4 in Polaris XP1000

By Paul Crowe

Polaris RZR with Motus MV4 installed with engine swap kit from Pratt and Miller Engineering

It had to happen. The Motus V4 Baby Block®, is a 100 cubic inch (1650cc), 180 horsepower, V4 engine that Motus developed for their new line of comfortable American sport bikes. As news of the motorcycles spread during development, hot rodders all over the world were looking at the little V4 and asking, "Hey, could I just buy the engine?" It just so happens, you can and it's … [Read more...]

Search articles on HorsePowerSports


Are you looking for classic car parts?

Everything you need to keep your classic on the road including those hard to find NOS (new old stock) parts.
Be very specific for best results! Use part numbers if you have them.

Your purchases through ebay links on HorsePowerSports may earn a commission for this site.


Don’t miss!

Slot Mods slot car tracks for the real motorhead man cave

Slot Mods Slot Car Tracks – the Kind You Used to Dream About

Building a mockup on the engine

Another Look at ICEngineWorks Exhaust Header Modeling Blocks

Copyright © 2026 · HorsePowerSports · Website by Crowe Computer Services
This website proudly Made in the USA!
Made in the USA