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b18b pistons

Discussion in 'Engine Building' started by Osbee330, May 11, 2004.

  1. Osbee330

    Osbee330 Junior Member

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    i have a 94 ls motor. it is out of the car right now so i want to put new pistons/rods in. i have been reading that pr3/p30 pistons from a b16 work great in the ls. i have also read that stock internals arent good if you are pushing over 300hp. will b16 pistons work or should i get pistons such as JE.
     
  2. Havok

    Havok Senior Member

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    It depends on what you are doing with the motor.
     
  3. Osbee330

    Osbee330 Junior Member

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    i am doing cams, header, intake manifold, throttle body, exhaust,pistons, rods, cam gears and prolly some other stuff. i lil while down the road im prolly gonna turbo it. would the p30/pr3 rods fit in the ls?
     
  4. TPR

    TPR Junior Member

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    yes, the b16a pistons do fit the ls rods. its pretty high comp. for boost though we have the same set up in our daily driver it putting @ 10.9.1 ball park
     
  5. MikeBergy

    MikeBergy Blah blah blah....

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    Yeah, I'd stay with the pr4's if you are gonna boost. It isn't the pistons that can't take a lot of power, it is the rods, and if you are gonna go over like 225 whp, I'd suggest a vtec oil pump for good measure. Forget the throttle body, sink the money that you save into some head work. How much is the TB? Like $250-300. I am getting my b16a head a 5 angle valve job, mild pnp of the intake and exhaust ports, and portmatching of the intake manifold and intake ports for like 900, so I'd just spend a little extra money on that. A bigger TB is not going to help unless you are revving to like 10k, or wayyyyy overboring the motor.
     
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