Page 196 - 2021-22_EngineCatalogAP

ENGINE BLOCKS
BB Chevrolet 454/502 CID Gen VI Bare Block
Chevrolet Performance
Production-based Gen VI cast iron blocks feature four-bolt main caps, standard 9.800" deck height, and 4.250"-4.470" bore range.
Part No.
GMP19170538 A GMP19170540
A 1-piece rear main seal
Description
454 Mark IV/Gen VI Bare Iron Block 502 Mark IV/Gen VI Bare Iron Block
Bore
4.250" 4.470"
O.D.
4.750" 4.731" 4.702"
Deck Height
9.800" 9.800"
Main Cap
Iron Iron
Flange Thickness
0.188" 0.188" 0.188"
ENGINE BLOCK SLEEVES
CHEVROLET BIG BLOCK
Part No.
Darton Sleeves
DAR100-8007-05 DAR100-8007 DAR100-8005-1
Application
Donovan BBC 700 Block Donovan BBC 700 Block Donovan BBC 500 Block
Rough Bore
4.449" 4.490" 4.492"
Length
8.000" 8.000" 7.250"
Wall Thickness
0.130" 0.120" 0.105"
Flange Diameter
4.897" 4.897" 4.897"
MAIN CAP GIRDLES
PRW Steel Main Cap Girdles
PRW billet Steel main cap girdles are engineered to help eliminate the block flex and cap walk that occurs as a result of stress while under extreme loads, including nitrous oxide power bursts in high-performance engines. PRW main girdles are manufactured from premium-quality 1045 billet steel. These kits include high-quality steel studs, spacers, and nuts (limited machining may be required for proper fitment).
Chevrolet
Part No.
PQX0945400
Description
396-454 Big Block Chevrolet
MAIN BEARING CAPS
Steel Main Caps
Ductile main caps use splayed outside-bolts which pull from the side walls of the block
instead of flimsy main web area. Main caps, bolts, washers, and a drill bushing are included in each kit. In addition to engines listed, main cap kits are available on a special order basis for many Chrysler, Oldsmobile, and Pontiac engines.
Part No. Application Caps Block
Register
MIL11200 396-454 Big Block Chevrolet 4-Bolt 2 or 4-Bolt —
Dart Main Caps
Dart's steel, aluminum, and ductile iron main caps are designed for maximum strength, stability, and balance.
Part No. Application Caps Block Register
DRT32773030H BBC Ductile Iron Dart Block Only, 3 Center Caps 4-Bolt 4-Bolt —
194 2021-22 ENGINE BUILDER CATALOG