Build, photos and text by Mike Mavrigian This build features a GM LS platform, bored and stroked to 408 CID, with a 4.0305” bore and 4.000” stroke. A few of the notable elements include adapting Gen 1 smallblock Chevy valve covers to LS heads and a conversion to carburetion, this time using a [...]
Destructive crankshaft torsional vibration accelerates the wear of critical engine components. Honda® S2000 owners can now protect their engine, while gaining power, with the latest performance damper from Fluidampr® (part #530601, suggested retail $450). Fluidampr protects across a broad frequency band throughout the entire rpm range with a far greater lifespan compared to tuned rubber [...]
By Mike Mavrigian We finally had a chance to run the Pontiac 501 on dyno. Following are the results. We ran the engine at Ross Racing Engine’s new Superflow SF-902 engine dynamometer in late May, 2012 (Ross is located in Niles, OH, about 62 miles east of my facility).
Build, text and photos by Mike Mavrigian The Pontiac 455, bored/stroked to 501 CID, is finally completed. This article covers all remaining aspects of the assembly. Next is the dyno run, which I’ll cover in an upcoming article.
Build, text and photos by Mike Mavrigian Note: This engine, as well as all of our engine projects, is designed, test-fit and assembled by Mike Mavrigian’s Birchwood Automotive facility in Creston, OH. Now that the block, oil pan, valley cover plate and timing cover have been painted, we can begin final assembly. [...]
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 [...]
Fluidampr has released a new catalog (vol. 11) featuring their popular SFI 18.1 spec performance harmonic dampers. The 20 page, full color layout is masterfully designed and includes valuable technical information for an appealing counter guide at any performance business retailer. Highlights include the Fluidampr performance damper for Chevy Camaro LS3 and L99 engines, [...]
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 flattie, adorned with chrome plated headers from Red’s Headers. These pipes fit like a dream. I thought I’d provide an update with regard to both the Ford flathead build (which has already appeared as a 5-part series on precisionenginetech.com and in the latest issue of Hot Rod & Restoration magazine), as well as [...]