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509 W Series Big Block Chevy HHR Pump Gas Engine

    https://www.shafiroff.com/chevy-pump-gas-engine/509-hhr.php
    509/625 HP $ 26,150 Includes Carbs & Ignition You've Been Dreaming About It. You've Waited For It. Now It's Finally Here! This Is Probably The Coolest Engine We've Built In The Last 10 Years And Is Guaranteed To Put More Smiles Per …

Shafiroff Racing's 509 Engine Build - motortrend.com

    https://www.motortrend.com/how-to/1404-shafiroff-racings-509-engine-build/
    The gains were barely recognized with the larger bore so Shafiroff just rolled with the new W-series engines in the 509ci configuration using the 4.370-inch bore and 4.250-inch stroke; he said, "It...

Shafiroff 509 Has ‘Cool’ Factor for Early Chevys & Street Rods

    https://www.streetmusclemag.com/news/shafiroff-509-has-cool-factor-for-early-chevys-street-rods/
    The Shafiroff 509 features a 4.370-inch bore with a 4.250-inch stroke, and it has a 10.75:1 compression ratio. This first prototype also boasts a “hot” hydraulic roller cam, and the Edelbrock heads were CNC ported by Indy Cylinder Heads before being fitted with 2.250/1.75 Manley stainless-steel valves.

Shafiroff Racing dynos HILBORN injected 509 - Holley …

    https://www.holley.com/blog/post/shafiroff_racing_dynos_hilborn_injected_509/
    This engine not only looks the part but has plenty of power which has only been enhanced by the HILBORN injection. “We picked up an extra 50 lb-ft of torque and maybe 15 horsepower,” says Scott Shafiroff. “Same cam, same …

Scott Shafiroff Racing Drag Racing Engines, Pump Gas …

    https://www.shafiroff.com/
    Short Blocks. Long Blocks. Cylinder Heads & Balanced Rotators. Overstock Engine Parts. Unclaimed Engines.

Shafiroff 509 Has ‘Cool’ Factor for Early Chevys & Street Rods

    https://www.chevyhardcore.com/news/shafiroff-509-has-cool-factor-for-early-chevys-street-rods/
    The Shafiroff 509 features a 4.370-inch bore with a 4.250-inch stroke, and it has a 10.75:1 compression ratio. This first prototype also boasts a “hot” hydraulic roller cam, and the Edelbrock heads were CNC ported by Indy Cylinder Heads before being fitted with 2.250/1.75 Manley stainless-steel valves.

Pump Gas Engines by Shafiroff Race Engines and Components

    https://www.shafiroff.com/Pump-Gas-Engines.php
    509/625HP W Series All Aluminum Dual Quad HHR Pump Gas Engine: $26150: Pump Gas Engines - BBC Hilborn EFI: 540/765HP Hilborn EFI-R Pump Gas Engine: $27950: ... Scott Shafiroff Racing Enterprises, Inc. 35A Davinci Drive • Bohemia, NY 11716 HOURS: Mon - Thu 9:00 a.m. ...

Dyno Video: Shafiroff 509ci W-series With Hilborn EFI

    https://www.enginelabs.com/news/dyno-video-shafiroff-509ci-w-series-with-hilborn-efi/
    509 Big Block Chevy W Series Featuring Hilborn Fuel Injection Watch on Last time we checked in with the 509ci retro W-series big-block Chevy developed by Shafiroff Racing, it was making 615 horsepower (later tweaked to 625) and 638 lb-ft of peak torque. That was with a pair of Edelbrock 4-barrel carbs on a traditional dual-quad intake.

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