Thread: power ratings?
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Old 02-12-2009, 01:29 AM   #4
Drives: 2003 Cobra Convertible
Join Date: Feb 2009
Location: CA
Posts: 2,925
Originally Posted by mp11 View Post
Hello everyone. Just a bit curious about the HP ratings on this LS3. I've seen 430 and 426, not sure which is acurate. But my question is, back in the early days many of these engines were "underrated", in some cases very underrated because of insurance purposes or whatever. Is it believed that the LS3 may also possess more than the advertised HP? Do car companies still do that?
With the SAE certification, it is impossible to "underrate" an engine. The only way is if the manufacturer chooses not to SAE Certify their engine (4.6 3v in the Mustang, 6.1 Hemi, etc.).

The LS3 and it's variances (GXP, Corvette, Camaro, etc.) are all SAE Certified.
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