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thats defintely a front crank seal. the LT1 front seal is super thin and doesnt like boost. the LS3 front crank seal is the better replacement. with that said you may have to go through and also add a vented breather for the crank case or a vented catch can. you generated enough pressure in there to blow the front seal out, the LS3 seal will hold the front down trapping that pressure and may blow something else out or generate more blow by.
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17 2SS, Pray Performance Forged/Stroked 416, 2.9 Whipple (Pray ported), Stage 2.5 Pray ported heads, RotoFab Big Gulp, Katech 103mm TB, Pray Performance stage 3 forced induction cam, 8.855” crank shaft lower pulley, 3.00 S/C pulley, LT4 Fueling, SMG auxiliary fuel system, 2' TSP LT headers with X-Pipe, Magnaflow Competition axleback, Mighty Mouse Wild catch can, Hurst Short Shifter. Tuned by Pray Performance. 1011WHP/982WTQ
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