Build, text and photos by Mike Mavrigian This final article installment covers the completion of the 408 LS build, along with the engine dyno results. Our radical-looking baby pulled a respectable 670.5 HP at 6500 rpm and 581/7 lb-ft of torque at 4900 rpm.
Build, text and photos by Mike Mavrigian BLOCK PLUGS Using all new GM plugs, I installed the four threaded water jacket and oil plugs on the outside of the block (three steel 16mm plugs and one brass 30mm plug). These plugs feature straight metric threads. No NPT threads exist on the OE block. [...]
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 [...]
MAHLE Clevite Inc. introduced 62 new part numbers in November for various types of bearings, cylinder components, filters, gaskets, piston rings and turbochargers. The part numbers are available for a range of light vehicle and heavy duty applications.
King Engine Bearings, a leader in high performance engine bearings, has introduced new rod and main bearings for Subaru engines in its popular XP Engine Bearings line.
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 [...]
King Engine Bearings has released its new application guide for the company’s HP and XP high performance engine bearings. King manufactures a large selection of bearings engineered for specific applications, including: circle track, drag racing, monster trucks, off-road racing, tractor pulls, sprint cars and off-shore racing. The new application guide includes information on the company’s [...]
King Engine Bearingshas introduced new high-performance rod and main bearings for Chevy engines in its popular HP Engine Bearings line. Made of bi-metal, aluminum silicon alloy, King’s HP bearings feature a 40 Vickers hardness that resists traditional overlay migration and extrusion. HP bearings have a 450 degrees Fahrenheit heat threshold that affords greater protection against [...]
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 [...]