V8 Engine Swap

How it was Used: In the process of building and swapping in a 350 TPI.

Price Paid: $4000

How it was Used: ZZ502. At the time this was the king of all big block crate engines is the ZZ502/502, with torque and horsepower that will have you grinning and streetable manners that have your competition wondering what hit them.
The ZZ502/502 represents the latest and best efforts to develop awe inspiring big block power in a dependable, durable and driveable big block crate engine. (Now of course the ZZ572 holds the title)
With it's big valve aluminum heads, roller camshaft and complete dyno tuned induction and ignition system, this is as close as you can come to a custom built 502.
The ZZ502/502 makes extensive use of aluminum to keep weight down. This king of the crate engines is full of heavy duty parts, to ensure that it will be making awesome power for a long time. With it's forged aluminum pistons, forged steel connecting rods with 7/16" bolts, forged steel crankshaft, four bolt main block, stainless steel valves, 6 quart oil pan, and windage tray, the ZZ502/502 seems more like a custom race engine than a crate engine. With a 5800 RPM redline it might just feel more like a custom race engine than a crate engine too.
For anyone looking for more power - GM Performance Parts has designed the hot rodder's ultimate dream engine. This 502 cubic inch engine produces a staggering 502 hp with 567 lb ft of torque with a modest 9.6:1 compression ratio. This engine also features an all new oval port aluminum cylinder head design with 2.25" intake and 1.88" exhaust valves and 11/32" valve stems.

Displacement: 502 cubic inches

Horsepower: 502 @ 5200 RPM

Torque: 567 @ 4200 rpm

Max. Rec. rpm: 5800 RPM

Fuel: Premium Unleaded 92 Octane

Spark Plugs: #4 Rapid Fire Gap .035, R43XLS Gap .035

Bore & Stroke: 4.47" x 4.00"

Comp. Ratio: 9.6:1

Block: Gen VI, Cast iron, 4-bolt, 4.470" bore

Crankshaft: Forged Steel

Connecting Rods: Forged Steel shot peened, 7/16" bolts

Piston: Forged Aluminum

Piston Rings: P/N 12524293

Camshaft: Steel hyd. roller (lift: .527" I, .544" E) (Duration @ .050": 224° I, 234° E)

Timing Chain: Single Roller

Cylinder Heads: High Velocity 356-T6 Cast Aluminum Alloy Oval Port, 110cc Semi-Open Combustion Chamber

Intake/Carburetor: Aluminum Intake, Holley 850cfm

Intake Valve: 2.25" Stainless Steel

Exhaust Valve: 1.88" Stainless Steel

Valve Springs: (P/N 12462970)

Valve Lash: Zero

Rocker Arm Ratio: 1.7:1 Stamped Steel

Valve Covers: Premium Die Cast Aluminum

Flexplate: 14" for Automatic Transmission

Spark Timing: 36° total at 5000 RPM, 8° BTDC @ 800 RPM

Price Paid: $5000