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Message: [QUOTE="elrodalexander73, post: 1143713, member: 16217"] I just wonder if the 6.7 can take the sustained twist and boost of truck pulling without the cylinder heads lifting, truck pulling and drag racing are two different things, its kinda like the 6.7 Cummins that were supposed to be big and bad and have extra displacement but once they started climbing up there in real power they started cracking the lower bores in the block and locking cylinders up when they galled.. My goal at this point is to save for a P-pump and know I have 650cc+ of fuel per stroke no matter what rpm, with the throttle fully engaged. This post was just render some discussion on what is still left, I see more and more P-pump 7.3s coming onto the scene, I saw a truck called Relentless, a P-pumped 7.3, now in Midwest, guy sold his 3.0 cummins to build his 7.3, they are laying down good numbers and making torque all over the place and aren't crapping out after 4 or 5 pulls. [/QUOTE]

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