Ford Small-block Runs Rare Hemi Heads Designed by Chet Herbert
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Ford Small-block Runs Rare Hemi Heads Designed by Chet Herbert
http://www.dragzine.com/news/ford-sm...-chet-herbert/
“There’s actually a very small combustion chamber at 46cc. It is a true hemi but basically, it’s all valve,” says Vrbancic, noting the valve sizes at 2.400 intake and 1.900 exhaust. “There is water going through the head but it’s not a conventional water jacket. It does keep them cool, though.”
Herbert also designed a custom 3-piece billet intake manifold in which the center section is actually part of the intake port, according to Vbrancic. Sitting on top is a pair of Carb Shop-prepped Holley HP carbs. Rounding the engine assembly are a Jesel belt drive, Meziere water pump and MSD distributor.
With a “small solid roller” the engine makes just over 800 horsepower at 6,600 rpm on pump gas. Peak torque was 671 lb-ft at 5,200 rpm. Final destination is a street rod.
Herbert also designed a custom 3-piece billet intake manifold in which the center section is actually part of the intake port, according to Vbrancic. Sitting on top is a pair of Carb Shop-prepped Holley HP carbs. Rounding the engine assembly are a Jesel belt drive, Meziere water pump and MSD distributor.
With a “small solid roller” the engine makes just over 800 horsepower at 6,600 rpm on pump gas. Peak torque was 671 lb-ft at 5,200 rpm. Final destination is a street rod.
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I remember reading about another "hemi" headed SBF a few years ago that IIRC were revving to ridiculous RPM... can't seem to find any info on it now though..
Never seen this one before, but awesome nonetheless
Never seen this one before, but awesome nonetheless
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Kind of sad the ARAO 32v cylinder heads are just vaporware... would be interesting to see how they would stack up against hemi type cylinder heads.
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