4.5 crankshaft 400whp

bullitt5897

You will need to build the whole block for the 4.5L as far as cracking VVEL most people dont know whats going on behind the scenes. Uprev has been working on VVEL for sometime now trying to understand the affects of the tuning and parameters that they are tuning at the moment. A 4.5L can definitely support 400whp what it really comes down to is what compression, supporting mods and tuning will get you there. I know GTM can build you an NA motor capable of what you want but at what $$$... Their full race NA motor is like $35k...

Mike

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