PolyQuad - How the worlds most powerful 4v heads are built.
In this, episode 124, DV details what it takes to convert a conventional 4 valve cylinder head to a PolyQuad head. This type of head is typically about 100 hp and 110 lbs-ft better than a conventionally ported race head on a 2.0 litre engine. In this, part 1 of a 3 part mini series, all the pertinant details are explianed and both a low and hi-buck version is thrown into this hi-power brew!