Free Shipping & Handling on Orders Over $95 - Order by 11pm EST for Same-Day Shipping!
0
My Cart
$0.00
Shop By
Category
All Categories

Rebates
Gift Certificates
My Account
Help

Chevrolet Performance 19170540

502 Bare Block 9.800 Deck Height



Chevrolet Performance 19170540

Part Number: 809-19170540

502 Bare Block
  • 9.800 Deck Height
  • 1-Piece Rear Main Seal
  • 4-bolt Main Cast Iron Caps
  • Max Stroke 4.250
  • $1,840.74
    Ships
    Truck Freight: $119.00
    Chevrolet Performance 19170540 502 Bare Block 9.800 Deck Height $1,840.74

    Chevrolet Performance 19170540 Details

    Performance Big Block Bare Block




    A Better Big-Block

    The classic Chevy Big-Block production engine was introduced in 1965. In the late 1980s, a new version arrived, designed for marine and fuel-injected applications. The early-style engines are known as Mark IV Big-Blocks, while the later style is referred to as the Gen V (and Gen VI) Big-Block. You can tell them at a glance by checking for a mechanical fuel pump mounting pad. If it has one, it's a Mark IV. If there's no fuel pump pad, it's a Gen V block.

    Despite the fuel pump mounting pad difference in their castings, the cylinder blocks of the Mark IV and Gen V are based on the same design architecture. There are several other differences?particularly in the water jackets near the deck surfaces?that make some Mark IV and Gen V parts incompatible, including crucial components such as the cylinder head gaskets.

    Within the last few years, Chevrolet Performance revised the basic Big-Block architecture to commonize the Mark IV and Gen V, creating an all-new cylinder block casting that combines the features of both generations. It also incorporates significant updates and strength-enhancing features that make the Big-Block a stronger engine foundation with provisions to support 21st-century performance.

    Although the basic Big-Block architecture is revised, Chevrolet Performance continues to offer two versions, each differentiated by performance and displacement capability. The Bowtie block continues to be the block of maximum performance. All of our crate engines use the revised Big-Block design.

    Here's what distinguishes the latest Chevrolet Performance Big-Blocks from earlier castings:
  • Water jackets are revised near the deck surfaces so that Mark IV or Gen V head gaskets can be used interchangeably
  • Oil pressure feed holes are added to the oil filter boss and front bulk head to support oil feeds for superchargers, turbochargers, etc.
  • The oil hole next to the camshaft bore at the front of the block is repositioned to enable safe machining of the cam bore to accept a 50mm roller camshaft bearing
  • A mechanical fuel pump mounting pad is included, similar to the Mark IV
  • A boss next to the distributor hole in the valley supports hardware for digital ignition equipment
  • The front bulkhead is thicker and stronger, with marked provisions for a 10-bolt timing cover (non-Bowtie blocks are delivered with drilled and tapped holes for 6-bolt covers; remaining holes must be drilled and tapped at the prescribed positions)
  • Non-Bowtie blocks are machined for 4-bolt parallel main caps; Bowtie blocks are machined for 4-bolt splayed caps
  • Revised rear-of-block allowed for the machining of 1- or 2-piece main seals (similar to Gen V design)
  • A front clutch boss is included for older muscle car applications
  • 454 blocks have a slightly beefier main web than previous blocks
  • All blocks are made with the standard production roller camshaft and lifter machining
  • 502 and Bowtie blocks share the same main web, which is strengthened considerably from the Mark IV and the first-generation Gen V Bowtie block
  • Bowtie blocks feature a distinctive water jacket design to allow up to 4.600'' bores. These blocks can be identified by a ''B'' suffix behind the casting number.
  • Two additional core plugs are featured in the rear bulkhead. They enhance the manufacturing process at the foundry and help improve overall quality. Also, a ''Bowtie'' logo and other identifying marks are incorporated on the Bowtie block, distinguishing it from previous generations.

  • Specifications:

    Cam Bearings Included
    No
    Cylinder Bore as Shipped (in.)
    4.47
    Cylinder Bore Diameter (in.)
    4.5
    Deck Height (in.)
    9.8
    Engine Block Material
    Cast iron
    Engine Block Style
    Aftermarket
    Engine Block Weight (lbs.)
    269
    Finished Cylinder Bores
    No
    Freeze Plugs Included
    Yes
    Main Bearings Included
    No
    Main Bolt Style
    4-bolt
    Main Cap Fasteners Included
    Yes
    Main Cap Material
    Cast iron
    Main Caps Included
    Yes
    Main Journal Type
    454 mains
    Quantity
    Sold individually
    Raised Cam Location
    No
    Rear Main Seal Style
    1-piece
    Manufacturer's Part Number:
    19170540

    The DIY Foundation for Big Torque!

    Free Shipping!

    The Chevrolet Performance ZZ502 Partial engine is designed for those who need the max, the 502ci Gen VI Chevrolet big-block with roller camshaft. The pistons, rods and crankshaft are the same as Gen V. This engine features a standard deck height block with four-bolt main bearing caps, a 4.00" stroke forged steel crankshaft and 4.47" diameter forged pistons. The compression ratio is a reasonable 8.75:1 when used with 118cc chambers cast iron heads, or 9.6:1 with 110cc chamber aluminum heads. It has 4340 steel connection rods with 7/16 rod bolts. This partial includes block, crankshaft, pistons, flex plate, damper, oil pump, oil pan, front cover and steel hydraulic roller camshaft with lifters!

    ZZ502/502 PARTIAL ENGINE TECH SPECS:
  • Engine Type: Chevy Big-Block V-8
  • Displacement: 502ci
  • Bore x Stroke: 4.470'' x 4.000''
  • Block: Cast-iron with four-bolt main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged steel, shot peened
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .527'' intake / .544'' exhaust
  • Camshaft Duration (@.050 in.): 224° intake / 234° exhaust
  • Compression Ratio: 9.6:1 with 110cc combustion chamber cylinder heads
  • Flexplate: 14'' diameter, externally balanced
  • Maximum Recommended RPM: 5500
  • Balanced: External
  • GM Warranty

    Items You Need
    Intended for pre-1978 street vehicles and all off-road vehicles. Not intended for marine use.