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If you have called HPR before about building an engine you will be asked a number of questions.  One of those being, are you looking to do a solid roller or hydraulic roller valvetrain?   Why is that?   Well for one it helps us narrow down some choices for you and better estimate the costs of your project.  The other is making sure we have the correct cylinder head casting to start with.  Why is the casting so important you might ask?  Well let us take a closer look.  For the purpose of this article we are going to be looking...

We look at piston rings and some common failures that might not be familiar to a lot of customers.

Horsepower Research 468 cubic inch naturally aspirated GenV LT road race engine for a Corvette C7 Z06.

Lets take a trip down piston history road.   Over 100 years of automotive engineering are in these photographs today. Oddly enough we just happen to have some engines in the shop now that represent the start of the auto engine, mid century and modern day. (Model T, Jag XK120, and GM LS7).   All three of these engine share close to a 4.000" stroke (Model T and LS7 are both 4") while the Jag has a slightly longer 4.17" stroke so the c/h is about the same on all. Model T of course is a flat head while the...

*In no way is this the only way  to do an engine like this, there are other options, this is just one such engine*   Local customer wanted us to build a beefier engine for his procharged Corvette that could take more power and possibly more RPM than the OE short block that was in his car currently making around 1000whp.  The idea was to run a bigger procharger later on and make more power further down the road when upgrading the head unit and intercooler system.    So lets get into the hardware.    Engine Block Not to go...