Articles tagged #HOLLEY
Articles tagged
#HOLLEY
EFI vs. Carburetor on a Stock Gen VI 454: A Dyno Comparison
A Gen VI 454 from the wrecking yard ran back-to-back on the dyno with its factory EFI intake and a Speedmaster Eliminator dual-plane paired with a Holley 650 XP carburetor. The carb combination produced 370 hp and 476 lb-ft, trading a small amount of low-end torque for stronger power above 3,700 rpm.
From 279 to 506 Horsepower: A 5.0L Ford Top-End and Nitrous Build on the Dyno
Starting with a forged 5.0L short block and stock E7TE heads, this build documents the dyno gains from a complete top-end upgrade and 100-horsepower nitrous shot - taking output from 279 hp to 506 hp.
LS 383 Stroker Turbo Build: From 517 HP to 1,015 HP With a Speedmaster Forged Crank
Starting from a stock 5.3L iron block, this 383 LS stroker used a Speedmaster forged 4.0-inch crank and single turbo to reach 1,015 hp at 6,300 rpm on 16.4 psi of boost.
931 Horsepower from a Naturally Aspirated 557-Cubic-Inch Ford with a Dual-Quad Tunnel Ram
Starting with a production 460 block stroked to 557 cubic inches, this build combined CNC-ported Trick Flow A460 heads, a COMP drag-race roller cam, and a dual-Dominator tunnel ram to produce 931 hp and 757 lb-ft of torque - all naturally aspirated.
Ford 460 Stroker Build: Kaase P-51 Heads and Speedmaster Rotating Assembly Reach 1,014 HP
Built around a Speedmaster 4.50-inch stroker crank and rods, this 557-cubic-inch Ford big-block topped with Kaase P-51 heads delivered 754 hp on pump gas and 1,014 hp with a 200-hp nitrous shot.