This Chevrolet Performance Parts big block 454 HO is an awesome value, ready for an easy transplant into your classic muscle car or street rod! It is a Gen VI-based block with a conventional-style mechanical fuel pump boss, and it sounds much like the performance big blocks of the 1960s. The engine has a windage tray, one-piece rear main seal, and high-speed single roller timing chain. An 8.75:1 compression ratio means you've got an engine that's satisfied on today's premium fuel with no appetite for lead, octane boosters, or other fuel additives.

 

Specifications

425 HP @ 5250 RPM

500 ft/lbs @ 3250 RPM

8.75:1 Compression Ratio

Cast-Iron Four Bolt Main Block

Forged Steel Crankshaft

Forged Steel Connecting Rods

Hydraulic Roller Cam (Lift .510" Int/.540" Exh, Duration @ .050" 211° Int/230° Exh)

Cast Iron Rectangular Port 118cc Cylinder Heads (2.19" Int/1.88" Exh valves)

1.7:1 Rocker Arms

8'' Harmonic Balancer

14'' Flexplate

Engine 454 Ho / 425 Hp Details Available In Our Catalog, Or See Gm Performance Catalog For Complete Specs. Not Available For Online Ordering, Please Call For Order Procedure & Current Price