I am designing a retro Cuda Clone and want to put a new FI 6.1L Hemi in it. I have plans to order a crate engine with a stand alone management system, twin turbos, etc. What I am looking for is what is the HP limit of the stock bottom end of a 6.1L hemi. Does anyone know? I have also heard that in stock form the valve train can only handle 6800-7000 rpm. Does anyone have any real world data to assist me. If the newer engines can't handle 800HP like I have been told I want to go with a crate 426 and build a carb fueled car.
Please let me know what you all know.
Thanks!
No BS Engine Limits
Moderator: scottm
No BS Engine Limits
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2007 Ram 1500 Big Horn
2005 Durango Limited
S F Racing - Speed is a Byproduct
All Source Customs - You dream it, we build it...
2007 Ram 1500 Big Horn
2005 Durango Limited
S F Racing - Speed is a Byproduct
All Source Customs - You dream it, we build it...
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- Posts: 7
- Joined: Mon May 31, 2004 8:26 pm
- Location: houston
There's a magazine on the newsstands right now--mid December 2007--that details a 5.7 Hemi buildup using new Mopar Performance heads, a blower, and aftermarket computer. It's either Engine Masters/Popular Hot Rodding, or Hot Rod Engines.
They're claiming 700+ horsepower on stock crank and rods; but the sidebar says they don't expect it to last long.
Still, that's mighty impressive.
They're claiming 700+ horsepower on stock crank and rods; but the sidebar says they don't expect it to last long.
Still, that's mighty impressive.