Steve Mundy's '72 Camaro was one of the most impressive cars we saw: big rear tires, a mammoth big-block, and a loud rumble at idle. Steve bought the ex-racecar online minus the engine. The guys at Ace Machine in Riverside, California, assembled the 564ci Rat, and Westech Performance dyno-tested the engine. When we first arrived to shoot Steve's Camaro he told us he just checked with his insurance company, and we could take the Camaro for a spin around town. One thing we especially liked was the Camaro's license frame that reads "9 seconds on pump gas."
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| Steve Mundy |
| '72 Camaro |
| Specs |
| Displacement | 564 ci |
| Block | Dart iron |
| Bore x Stroke | 4.530 x 4.375 inches |
| Compression | 10.5:1 |
| Rod | 6.385-inch |
| Induction |
| Carburetor | Holley 1050-cfm |
| Intake | Edelbrock Super Victor |
| Camshaft Specs |
| Comp Cams solid roller |
| Valve lift | 0.742/0.715 inch |
| Duration | @ 0.050 271/280 |
| Lobe separation | 112 |
| Cylinder heads |
| AFR 335 rectangular-port aluminum |
| Valve size | 2.30/1.88-inch |
| Rockers | Comp Pro Magnum,1.7:1 |
| Drivetrain |
| Transmission | Powerglide w/transbrake |
| Converter | TCI 8-inch |
| Rearend | Narrowed 12-bolt |
| Gears | 4.30:1 w/spool |
| Rear rubber |
| 33x19.50 Mickey Thompson Sportman Pro |
| Numbers |
| Peak Horsepower | 839.3 @ 6,300 rpm |
| Peak Torque | 773 @ 4,900 rpm |
With nearly 2 tons to move, Les Hays wanted to make certain that he would not have a power problem. So he assembled his own 588-inch big-block that converts pump gas into over 800 happy horses. Les's engine develops huge power by flowing lots of air through a set of Air Flow Research cylinder heads that flow 385 cfm measured at 0.600-inch lift. The bumpstick is a very big solid roller. We had a chance to hear the thunder of this motor and can attest that it is awesome.
| Les Hays |
| '56 Chevy |
| Specs |
| Displacement | 588 ci |
| Block | Merlin block w/splayed billet caps |
| Bore x Stroke: | 4.560 x 4.500 inches |
| Compression | 10.25:1 |
| Rod | 6.700-inch, Scat |
| Induction |
| Carburetor | Holley Dominator 1,050-cfm |
| Intake | Edelbrock 454R |
| Camshaft Specs |
| Comp Cams solid roller |
| Valve lift | 0.714/0.714 inch |
| Duration | @ 0.050 266/272 |
| Lobe separation | 112 |
| Cylinder heads |
| AFR aluminum 335, CNC-ported |
| Valve size | 2.30/1.88-inch |
| Rockers | Jesel Sportsman, 1.7:1 |
| Drivetrain |
| Transmission | TH400, Remac Transmission |
| Converter | Continental 9-inch |
| Rearend | 9-inch Bill Thomas Enterprises, Detroit Locker, Strange 33-spline axles |
| Gears | 4.56:1 |
| Rear rubber |
| 33x21.50 Mickey Thompson Sportsman Pro |
| Numbers |
| Peak Horsepower | 837 @ 6,500 rpm |
| Peak Torque | 773 @ 4,900 rpm |