DRD Type 4 Engine Primer

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DRD Type 4 Engine Primer

The Type 4 engine platform is a very robust air cooled engine platform. Primary used in the Busses, and Porsche 914′s.

A vary popular engine, is the 71mm X96mm big bore. A very low cost combination, that can bring years of fun. One big problem with the type 4 engines was the cylinder heads. The cylinder heads were known to drop valve seats, resulting in engine failure. Today, we recommend replacing the old type4 oem heads. Most of these oem heads have been used beyond there service life. Amc out of spain, makes a replacement type 4 head, that many companies sell and modify for performance use. These heads are a excellent  head for the type 4 engine. Dual weber carbs are the standard for most tpye 4 engines also.

If your looking for a increase a power, the 80mmX96mm stroker kit is very popular (2313CC). These kits bolt into a type 4 engine case, and provide a huge power increase over stock engines.

There are also a wide range of stroker cranks, and piston combinations for the type 4 engine, opening up a wide range of build options. Do your home work, and build your engine for your application, street, race , or off road use.

Please contact us to discuss your application.

Contact Us

3016 S Orange Ave
Santa Ana, Ca 92707 USA
Phone 714-545-4100
Hours of operation M-F 8-4PM
Walk in customers by appointment only
(Email) drdracingheads@gmail.com

Technical Help!

We have over 30 years with aircooled engines, We offer technical help to get you up and running, if you have a question, ask away!

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