HEMISFEAR
04-28-10, 08:26.01 AM
14754
from the May, 2010 issue of Hot Rod
By Richard Holdener
Photography by Richard Holdener
What does it take to exceed 1,000 hp with a 6.1L Hemi?
Mopar's 5.7L and 6.1L Hemi engines are certainly potent, but they haven't garnered the attention of hot rodders to anywhere near the level of GM's LS-series engines. That's too bad, since the new Hemi has a great deal going for it even in stock trim. Like the current LS3, the SRT8 Hemi is blessed with tremendous cylinder heads. Impressive even in stock form, the 6.1L SRT8 heads respond to precision porting every bit as well as the General's heads. A properly ported set of 6.1L Hemi heads (like the ones employed in this buildup from Dr. J's) can flow more than 350 cfm at just 0.600 lift. That is some serious head flow. The SRT8 version of the modern Hemi also sports an impressive factory aluminum long-runner intake, a sizable throttle body, and free-flowing factory exhaust manifolds. There are Hemi owners who think the 425hp factory rating is not only insignificant but downright pedestrian and think nothing about more than doubling the factory power output.
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14757
Read more at HOT ROD MAGAZINE (http://www.hotrod.com/techarticles/engine/hrdp_1005_6_1l_hemi_supercharger_engine_build/index.html)
from the May, 2010 issue of Hot Rod
By Richard Holdener
Photography by Richard Holdener
What does it take to exceed 1,000 hp with a 6.1L Hemi?
Mopar's 5.7L and 6.1L Hemi engines are certainly potent, but they haven't garnered the attention of hot rodders to anywhere near the level of GM's LS-series engines. That's too bad, since the new Hemi has a great deal going for it even in stock trim. Like the current LS3, the SRT8 Hemi is blessed with tremendous cylinder heads. Impressive even in stock form, the 6.1L SRT8 heads respond to precision porting every bit as well as the General's heads. A properly ported set of 6.1L Hemi heads (like the ones employed in this buildup from Dr. J's) can flow more than 350 cfm at just 0.600 lift. That is some serious head flow. The SRT8 version of the modern Hemi also sports an impressive factory aluminum long-runner intake, a sizable throttle body, and free-flowing factory exhaust manifolds. There are Hemi owners who think the 425hp factory rating is not only insignificant but downright pedestrian and think nothing about more than doubling the factory power output.
14755
14756
14757
Read more at HOT ROD MAGAZINE (http://www.hotrod.com/techarticles/engine/hrdp_1005_6_1l_hemi_supercharger_engine_build/index.html)