Ross Racing Engines’ Tony Lombardi cut the valve reliefs using an end mill and his adjustable piston vise. Build, text and photos by Mike Mavrigian The Pontiac bigblock build (starting with a 455 block and boring/stroking to 501 CID) is progressing. I apologize for the time delay, but this build has been [...]
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 [...]
WE BEGIN THE BUILD OF A BORED STROKED PONTIAC 455 TO OBTAIN 501 CID AND ABOUT 600 PONIES. THE GOAL:TO CREATE AN IDEAL “INDIAN” POWERPLANT FOR STREET, STRIP AND STREET RODDER APPLICATIONS Prior to block machining, the block exterior was smoothed and detailed. Not only will this ressurected Pontiac provide some ground-pounding thump, but it’ll [...]
THE DYNO RUN Build, text and photos by Mike Mavrigian . Well, we finally ran this engine on dyno. The dyno location was Platinum Engine Designs in Norwich, Ohio, a clean-as-a-whistle top-notch race engine shop in southeast Ohio, equipped with a late-model SuperFlow engine dyno.
Our build is done. See the end of this article for several tasty photos of the finished engine, followed by a complete list of the participating manufacturers. FINAL ASSEMBLY OF OUR NASTY LITTLE DART 427W OUR ONE TRICK PONY IS DONE. WE’RE READY FOR THE DYNO RUN. Engine build, text and photos by Mike [...]
FROM SHORTBLOCK TO LONGBLOCK CYLINDER HEADS & VALVETRAIN Our beasty 427W is finally in longblock form. Engine build, text and photos by Mike Mavrigian The use of studs, as compared to bolts, provides a more accurate and consistent clamping load for the cylinder heads, and eliminates wear & tear on the block’s threaded [...]
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 [...]
The camshaft was checked with a degree wheel. Crane did one heck of a nice job grinding this bumpstick. Lift and timing moments were dead-on to the cam card. With our crank snout pinned for the damper, the timing cover was installed using ARP’s front cover kit (12-point stainless). The front coolant balance tube assembly [...]
PROJECT LS2, PART 4 This has proven to be a fairly easy build. The LS series-both Gen III and IV-shows definite promise. by Mike Mavrigian all photos by author Our LS is now ready for induction and ignition.At this point, our LS2 is a complete longblock. Here, we’ll cover a number of subjects leading up [...]
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