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This NASCAR engine revs sky high, here’s why.

Usually, pushrod engines don’t dare going above the 6500 rpm mark, this is because the reciprocating masses shaking up the engine are just too great.

Put simply the valvetrain tends to be heavy, which makes it prone to vibration, mainly because the pushrods are jiggling up and down, in high performance application, roller lifters and lightweight titanium pushrods are used to counteract these negative effects. Achieving this kind of performance from a 2 valve per cylinder overhead valve engine is nothing short of amazing.

Grab the popcorn and hear this engine roar in the video below.

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