La Cresenta, CA — Known world wide for its engine rebuilds for customers such as Ray Evernham and Chip Foose, H&H Flatheads has recently introduced a new supercharger assembly featuring the Detroit 6V53. There’s long been a need for a bigger blower,” said Mike Herman, owner of H&H Flatheads. “And the Detroit 6V53 fits the bill for so many applications particularly the Lincoln V12. That is such a long engine it needs a blower longer than the usual 4-71.” The Detroit 6V53 is a traditional Roots-type supercharger, however, it features 2-lobe, straight rotors compared to the 4-71’s 3-lobe, helix rotors. It pumps 209 cubic inches of displacement per revolution (c.i.d./rev) compared to the 4-71’s 280 c.i.d./rev, making it ideal for the Lincoln. And, of course, being 3 inches longer it will comfortably accommodate four Stromberg 97s mounted in-line for a really impressive look.
Besides the 6V53 assembly, H&H Flatheads offers a cast 356 aluminum intake for the V12 as well as a machined billet aluminum intake for the carbs. Also available is a twin V-belt pulley system. All of which can be purchased polished or unpolished. “H&H Flatheads is committed to developing new and exciting products.” Continued Mike. “And the 6V53 is just one of the major products we have in development. Don’t forget though, besides the Ford flathead V8 and the Lincoln flathead V12 we also rebuild other classic engines including flathead Lincoln V8s. With a full machine shop, we can pretty much tackle anything.” He concluded. Basic 4-71 - 6V53 comparison: 4-71: 280 c.i.d/rev, 3 lobe 30º helix ball/roller bearing, 10 inches long, 7.5 inches tall. 6V53: 209 c.i.d/rev, 2 lobe straight friction NON ball bearing, 13.1 inches long, 5.75 inches tall.
–Thacker & Friends
About H&H Flatheads: Founded in 2003 by Mike Herman, H&H Flatheads is celebrating its 15th anniversary. They specialize in building flathead Ford V8s and Lincoln V12s and the production of Navarro Racing Equipment, Sharp Speed & Power Equipment, Austin Speed Equipment and, most recently, Wilson & Woods 8BA heads and Dixon sohv heads. Besides the Ford flathead, H&H also specializes in Ardun conversions as well as rebuilding other vintage engines including Y-Block Ford, Nailhead Buicks and Chrysler Hemis.
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