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Will this combo make 500whp?

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Old Sep 15, 2025 | 05:41 PM
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Default Will this combo make 500whp?

408 LY6
11.5:1 compression
233/240 629/615 115 lsa
PRC 237 heads
Fast 102
1 7/8 long tubes into 3” dumped before axle

All In front of a TKX 5 speed

picked this cam because it was identical to a stealthy stroker cam that commotion spaced for me, but it was sitting on a friends shelf and 300$ cheaper 🤷🏻
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Old Sep 15, 2025 | 05:46 PM
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Two ways to get 500 at the WHEEL:
1) Manifold PRESSURE ( won't take much boost)
2) 7000+ RPM ( Titanium valvetrain parts desirable here)
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Old Sep 15, 2025 | 06:40 PM
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Originally Posted by M33P
408 LY6
11.5:1 compression
233/240 629/615 115 lsa
PRC 237 heads
Fast 102
1 7/8 long tubes into 3” dumped before axle

All In front of a TKX 5 speed

picked this cam because it was identical to a stealthy stroker cam that commotion spaced for me, but it was sitting on a friends shelf and 300$ cheaper 🤷🏻
With a good tune, you should be there. Do not underestimate what a great tuner can do. I preach that often here. Take 2 exact combos…put one in the hands of a good tuner, and the other in the hands of a great tuner. You’ll have 2 completely different running and driving combos. Money spent on a great tuner is money well spent. Budget for it now.
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Old Sep 15, 2025 | 07:41 PM
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What's the rest of the driveline look like? Rotating mass affects rwhp numbers too.
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Old Sep 15, 2025 | 08:15 PM
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I don't know that the TKX will live at the dragstrip. My neighbor killed one on the second pass with 630 hp.
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Old Sep 15, 2025 | 08:33 PM
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Originally Posted by 01CamaroSSTx
What's the rest of the driveline look like? Rotating mass affects rwhp numbers too.
Ford 9" with 3.73's. This is all in a 1964 Cutlass.
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Old Sep 16, 2025 | 07:38 AM
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should be right around there or at least very close, could probably get away with a little more cam being a 408
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Old Sep 16, 2025 | 09:44 AM
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This is being built to be a cruiser and i already have done the big lopey cam in my other car. Want it to idle almost near stock.
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Old Sep 16, 2025 | 09:54 AM
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I mean, it should make at least 480 to the tire. As said, you could put a bit more cam in it, but you have what you have at this point. I think you will be happy with it.
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