whipple cobra

  1. sicfast

    4.0l Whipple 4.6 buildup

    Like the title says, I'll be building up my every other weekend driven 03 and slapping the 4.0l Whipple on top. I've sent the heads off to be ported and polished, +1mm on intake valves and +2mm on exhaust. Oliver rods and Diamond pistons will be used and reusing the factory crank. Custom ground...
    • sicfast
    • Thread
    • 4.0 whipple 4.6 4v rebuild whipple cobra
    • Replies: 40
    • Forum: Engine/Tuning
  2. 2quicksvt

    2.3 whipple vs 2.9 whipple

    I currently have a gen II 2.3l whipple on pump gas making 608hp 550tq on 17pds. How much more power would I get if I sold this 2.3 an bought a 2.9? Can someone give me some numbers on what I could expect on pump gas. With the 2.3 on torco it makes 663hp on 22pds. Would like to have those numbers...

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