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Old April 22nd, 2013, 09:16 PM   #45
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Originally Posted by dragginwagon406 View Post
I would hazard to say one of the most common mistakes is to under-cam a 400. The long stroke and high compression (even from flat top pistons) tame larger cams to deliver incredible mid-range torque.
To end this hijack (maybe), I would say the second most common mistake when building a 400 is to buy too small of head. I would say that out of the box Torquers are marginally better than the 993 with mild port work and good valves. If you are going to spend the money, get a more efficient head.

Torquers are a $1000 for a pair

Take a good look at TFS

Or Edelbrock

Pay attention to heads priced per head verses heads priced per pair.

Because of the long stroke and hungry bores, you will have good port velocity compared to smaller brethren with the same cam. Don't be afraid to step up one size larger on the cam than you would have on a 350.

You won't regret either aluminum head for a nice running street engine.
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