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Oil Pump Question

This is a discussion on Oil Pump Question within the Internal Engine forums, part of the LSx Technical Help Section category; I am building a 408 and just wondering what oil pump I should use? What kind of oil pressure should ...

  1. #1
    Member 408WS6's Avatar
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    1998 Pontiac TA WS6

    Oil Pump Question

    I am building a 408 and just wondering what oil pump I should use?

    What kind of oil pressure should I expect? I shouldn't be spinning any more than 6500 rpm.

    Thanks

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    Junior Member kevinpickering's Avatar
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    I am building up my 350 LS1 this winter, and everyone I talked to said to go with the LS6 oil pump from Thunder Racing. They say that they run that in their 427's so that would be fine with your 408 I would think. The pump from Thunder, from what I understand, is basically a glorified LS1 pump that has been ported and has a spacer in the regulator to run the pump at a higher psi. Hope this helps.

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    Senior Member mrr23's Avatar
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    the LS6 pump will do fine.

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    Member 408WS6's Avatar
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    Hey thanks. LS6 it is!!!

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    Grand Imperial Wizard Sarge's Avatar
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    I bought mine from Lingenfelter...like $90 bucks...what are you doing to your fuel system?

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    Member 408WS6's Avatar
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    I've already got an inline Holley that puts out 255 lph. That worked well with the nitrous 5.7L that I had in it. That motor is out and in a jillion pieces in my garage right now. My 408 is supposed to be finished next week.

    I just bought some 42# SVO injectors also.

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    Grand Imperial Wizard Sarge's Avatar
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    The GTO fuel system sucks donkey balls...we have a little bucket that the FP sucks dry like quick....I have the Kenne Bell BaP....but am thinking of a Walbro and the bucket mod the f-body guys have been doing.....as far as I can see that would work...just dont let your gas tank go below a 1/4.....did you modify (drill) your fuel bucket?

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    Member 408WS6's Avatar
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    no, I haven't done that one yet

  9. #9
    Slow'er'Ass Mr. Luos's Avatar
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    I got a VRE LS6 pump from Byunspeed.com.

    Thing has a TON of pressure even at idle. Great pump.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
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    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

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