Chevy 383 small block with 500hp custom built by Proformance Unlimited. Engine features the MSD Atomic EFI unit along with dual Spectre air cleaner unit. Engine will be installed into a Chevy Impala. If you have any questions about this custom engine build, please give us a call at 800-267-3940 or visit us online at www.customcrateengines.com | Proformance Unlimited - Custom Crate Engines

1.1K views · 12 shares | Proformance Unlimited's small block Chevy 383 with 400hp and the MSD Atomic EFI. Engine also features finned valve covers, breathers and air cleaner and the March alt/ps/ac pulley kit. You can view this engine package at the following link: https://www.customcrateengines.com/engines/chevy/383-chevy-stroker-turn-key-crate-engine-with-400-hp.html | Proformance Unlimited - Custom Crate Engines | Facebook

Chevy 383 sbc with 450hp. Engine feature the March alt/ps pulley kit. You can view this engine package at the following link: http://www.proformanceunlimited.com/specs/383_350_economy.html Please call us at 800-267-3940 with any questions regarding this engine package. We look forward to speaking with you. | Proformance Unlimited - Custom Crate Engines