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Altima VQ35 4.1L Engine(assembled shortblock w/Pauter,Arias)

$8,899.99 $7,899.99

In order to run safely past 400-450WHP, an upgraded bottom-end with forged internals is a must.You get your choice of compression ratios ranging from 8.6,9.2,10.5 or 11.5 to 1 depending on whether or not you are going forced induction or keeping it all motor. Ofcourse we can sell just the rods and pistons for a competitive price for those that want to take on this task on thier own.Each motor comes with new ACL Race main and rod bearings,pistons and rods,seals,gaskets,etc………After this we check our main and rod bearing clearances with a bore gauge and micrometer (plastigauge is very inaccurate which is why we do not use it) to get the appropriate clearances which will ultimately lead to prolonged engine life.Every block has its deck surfaced to ensure straightness.Each block is bored and honed with a deck plate to exacting specifications to provide the correct piston to cylinder wall clearance.Then all of the pistons rings are file fit to each cylinder to provide the correct ring endgaps which allows you to make more power with less leakdown.The motor is finally assembled and torqued down to factory specifications. We then check the crankshaft endplay and rod side clearance to make sure they are in spec.A stock sleeved block is good to about 700 horsepower.A Darton sleeved block is good for over 1000 horsepower.

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