King Engine Bearings will present “Race Engine Secrets: Bearing Clearance, Tolerances and Oils” during the upcoming technical seminars at two race industry trade shows. The seminars will be conducted by Ron Sledge, King’s new performance and technical manager.
Build, text and photos by Mike Mavrigian . I realize it’s been a while since my last posting of this project’s Part 1 article, but I’ve been tied up with multiple projects at the same time. Since the Part 1 article, I’ve obtained the crankshaft, had the heads finish-machined and assembled [...]
Lunati has taken the wraps off its all-new 4340 alloy steel Signature series connecting rods. As direct replacements for their successful FM (fully machined) series, these new race-ready I-beam forgings are 100 percent sonic tested and Magnaflux inspected. In addition, they are manufactured to extremely close tolerances (.0005in between centers), weight-matched to plus-or-minus 1 gram, [...]
All that’s left is to install the velocity stacks, finish the spark plug wiring and to fabricate an adjustable mount for the alternator. by Mike Mavrigian, Editor OUR FORD FLATTIE Here’s an update on the ongoing build of our Ford Flathead 8BA. I’ve been holding off the start of the article series until the engine [...]
by Mike Mavrigian Build/assembly and all photos by author Our Lunati roller cam features 0.544″ valve lift at intake and 0.560″ at exhaust, with duration of 232 intake and 242 exhaust. Centerline is 108 intake and 116 exhaust. CAMSHAFT AND TIMING Dart thoughtfully provided anti-friction-coated cam bearings with their block. Each bearing is [...]
continued from Part 2 Considering the anticipated forces that a set of rod bolts will encounter during high-performance engine use, it doesn’t make sense to compromise by tightening with torque alone. Two examples of rod bolt stretch gauges. A variety of manufacturers offer these tools. The bottom anvil (stationary pointed pin) is adjustable to accommodate [...]
CAMSHAFTS All LS series camshafts are of the roller style. The LS series of engines utilize a camshaft timing sensor. To provide a signal to the sensor, 1997-2004 LS engines feature a machined reluctor on the camshaft, located immediately in front of the No. 5 main cam journal. Camshafts from 2005 and later eliminate this [...]
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