Tag: HOLLEY

PONTIAC 455, PART 4

PONTIAC 455, PART 4

  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.   [...]

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PONTIAC 455, PART 3

PONTIAC 455, PART 3

 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 [...]

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LS RETRO BUILD, PART 4

LS RETRO BUILD, PART 4

This installment in our LS 5.3L “retro build” covers installation of our hydraulic roller lifters, cylinder heads, pushrods and rocker arms, completing the valvetrain. . Build, text and photos by Mike Mavrigian . CYLINDER HEADS While there’s nothing to complain about with the original casting number 862 aluminum heads (GM P/N 12559862), making them flow [...]

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PROJECT PONTIAC 455, PART 2

PROJECT PONTIAC 455, PART 2

  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 [...]

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LS RETRO BUILD, PART 3

LS RETRO BUILD, PART 3

WE COMPLETE THE SHORT BLOCK   Build, text and photos by Mike Mavrigian   In this build installment, I’ll cover camshaft, timing, oil pump, windage tray, oil pickup, front and rear engine covers, oil pan installation and more. Due to the length of this article, I’ll save cylinder head details and installation in the next part of this build [...]

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PROJECT PONTIAC 455, PART 1

PROJECT PONTIAC 455, PART 1

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 [...]

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RETRO LS BUILD, PART 1

RETRO LS BUILD, PART 1

WE BUILD AN LS ENGINE ON A BUDGET AND TRANSFORM THE MODERN ENGINE INTO A RETRO MOTOR THAT HARKS BACK TO THE GOOD OLD DAYS IN THE PROCESS. BASICALLY, WE’RE BUILDING A CARBURETED 327 CID LS ENGINE, WITH CUSTOM TOUCHES THAT REMIND US OF AN EARLY 1960′S SMALLBLOCK CHEVY       We started with an [...]

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HOLLEY’S NEW LS OFFERINGS

HOLLEY’S NEW LS OFFERINGS

Holley has announced their all-new, whiz-bang LS engine components catalog, chock-full of newly-released go-fast goodies for GM LS engines.

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PROJECT 632 PART 6:DELIVERANCE (6G)

PROJECT 632 PART 6:DELIVERANCE (6G)

The vacuum pump and alternator setup hangs low, leaving the head area clean. Belt tension adjustment on radius tooth setups don’t require much tension at all, which removes a bit of stress from the crank. The tooth engagement alone provides a positive pulley drive. Routing the -12 plumbing from the vacuum pump to the valve [...]

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PROJECT 632 PART 6:DELIVERANCE (6F)

PROJECT 632 PART 6:DELIVERANCE (6F)

Even though the drive hub system will be clamped to the crank snout with the 6-inch long center bolt to prevent the possibility of independent hub rotation, two roll pins are installed to the hub. The countersunk inside face of the ATI Super Damper was then drilled to accept these roll pins. Plumbing the vacuum [...]

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