Question

 Do Chevy 409 engines need special valve seats?

Answer The 409's valve seats can corrode when used with unleaded gas, especially in the presence of high compression or a supercharger. If you're going to boost horsepower or rev the engine past 3,000 RPM... Read More »
http://www.answerbag.com/q_view/1969285

Top Q&A For: Do Chevy 409 engines need special valve seats

Does a 409 chevy engine need hardened valve seats?

If you spend a lot of time above 3,000 rpm, make regular trips to the redline and run on unleaded gas, you should use hardened valve seats on your Chevy 409 engine. Otherwise, the valves will stick... Read More »
http://www.answerbag.com/q_view/1967844

Flathead Vs. Overhead Valve Engines?

In 1949 Cadillac and Oldsmobile engine designers introduced a modernized version of the overhead-valve engine. Most American cars previous to this time employed an L-head, or side-valve design ofte... Read More »
http://www.ehow.com/facts_7415682_flathead-vs_-overhead-valve-engines.html

How to Remove a Broken Spark Plug Tip in Ford Triton 3-Valve Engines?

While spark plugs may seem sturdy enough at first glance, the body of a spark plug is made from ceramic material which can be easily damaged. In some cases, this damage translates into the tip of t... Read More »
http://www.ehow.com/how_6181509_remove-ford-triton-3_valve-engines.html

How to Identify Chevy 350 Engines?

If you have a Chevrolet car or truck made between 1967 and 1997, there's a good chance it has a 350-cubic-inch engine. The Chevrolet 350 small-block engine was offered in many Chevrolet cars and tr... Read More »
http://www.ehow.com/how_7316700_identify-chevy-350-engines.html


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