About Us

HorsePower Research

HPR is founded by enthusiasts for enthusiasts.  Our company is built on dedicated people that not only know engines but know the dynamics of making the most power through the entire RPM range while retaining reliability.  Our in house machine operations make sure that we can control everything inside the engine start to finish.    We can accommodate builds from 302 to over 600 cid in displacement in aluminum or cast iron blocks.  Our leading engine builder has not only assembled engines for decades, but also designs exclusive components you will not find anywhere else.  Like our own in house 527 cid LS based short and long blocks.  Don't see something on the site, ask for an itemized estimate for the engine you're interested in.  Feel free to give us a call or email to discuss your needs.  When you demand the best, demand HPR