Mopar Engine Performance Parts & Manufacturing Since 1969

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Inventory Updates

We are temporarily out of our Magnum intake manifolds. All new orders will be backordered and filled when a new supply arrives.

Instructions & Tech Articles

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Horsepower and What it Really Means

Basic Reading for Engine Building
It has come to our attention that many customers do not understand how power increases occur when modifications are made to their engines. Power in...

How to Build an Engine

Basic Reading for Engine Building
Deciding how to build your engine is a big deal. It is not cheap even though plenty of “cheap” parts are available. And there are plenty of “exp...

Choosing a Cam

Basic Reading for Engine Building
Choosing a camshaft is probably the most important part of designing an engine combination, yet it can be the most confusing and frustrating part o...