There are many setups for the 4G63 and 4G64 engines. Magnus is one of the pioneers in building beefy blocks to withstand high horsepower. Below are the common specifications offered by Magnus. It is a good guideline for anyone doing a their own build or you may also just give Magnus a call.
• All pistons are available in any custom bore size and custom compression ratio's
• Headgaskets available are up to 87mm larger bore sizes must source own gasket
• We recommend steel rods for anything up to 800HP
• Anything above 800 hp we recommend aluminum rods and our 23mm Pin upgrade
• Anything running above 9500 RPM must use our valve springs
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