We all know the formula for making big power. it goes something like this: compression, cam with duration as long as your arm, expensive high-flowing cylinder heads, big fuel-swilling carburetors. But the list doesn't stop there. Factor in the high-octane race fuel (read: expensive), a higher-than-practical stall torque converter, deep gears to accommodate the heads, cam, and carb, oh, and lousy street manners to boot. But fret not, as there is a way to make full-time, obscene, gut-wrenching power without sacrificing streetability on the altar of the speed gods, and that way is the way of the supercharger.
Indy Cylinder Head needs no introduction to the Mopar faithful. They have recently expanded their already mind-boggling assortment of heads, intakes, and crate motors to include supercharger kits created in conjunction with the Blower Shop (to be sold separately or as an option on their already stout crate engines). We had the chance to witness one of Indy's 8-71 blower kits installed on the Holley Road Runner "Project M" that was already sporting a stout 500-inch Indy crate big-block. The entire installation and subsequent dyno testing was performed on Horsepower TV that aired in March. Such a combination produces mind-numbing power, fat torque, great drivability, and unrivaled reliability all on available pump premium gas. Hell, we are so confident in its reliability that we are going to be driving this beast of a Plymouth on Hot Rod magazine's Power Tour this year with a similiar blown powerplant. That's a 1,500-mile round trip that will test the merits of Indy's creation. Stay tuned.
• Mopar Performance (MP) wedge Mega Block - 10.69-inch deck height
• Eagle forged 4.150 stroke crank
• Eagle H-beam rods
• 8.25:1 Wiseco forged dished pistons
• Comp solid cam with 250/260-degrees duration at .050-inch valve lift, .534/.555-inch lift
• Indy 1.5:1 ratio roller rocker arms
• Milodon 8-quart street/strip oil pan
• Indy dual-plane intake manifold
• Indy aluminum 440-S/R heads