Chevrolet Performance SP383 Deluxe 383ci/435HP Crate Engine

Big-Torque Small Block 383 Stroker!

Chevrolet Performance's big-torque SP383 is more powerful than ever. Chevrolet added their revised cylinder heads that incorporate a new, high-rpm valvetrain to help the SP383 produce 435 horsepower and 445 lb.-ft of torque. The new, lightweight aluminum cylinder head casting is based on the proven Fast Burn design. They feature angle spark plugs (5/8" Hex, 3/4" Reach, Tapered Plugs), hollow-stem intake valves, sodium-filled exhaust valves, Blue beehive valve springs, steel retainers, machined steel spring seats and split key locks, D-shaped exhaust ports, dual intake bolt pattern, and both perimeter and center-bolt valve cover bolt patterns. The beehive-style valve springs enable greater high-rpm performance and durability, allowing the SP383 to rev higher and build more power to complement its low-rpm torque. JEGS has everything you need to finish off the engine and get this small-block stroker running in your vehicle faster!