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450 663
= The location to measure piston-to-wall clearance
PATTERN CENTERLINE MANIFOLD
These are much stronger than the single self aligning rockers with the lips on the edge of the roller
DART SMALL BLOCK FORD IRON EAGLE SPORTSMAN BLOCK 9.5"/4.0" 351C MAINS 31355135 450 663CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Dart 351 Sportsman block Part # 31355135 Steel Main Caps 2. 750 Main Bearing Diameter Deck Height 9. 500 Cylinder Bore Diameter 4. 000 Dart Sportsman Iron blocks for Fords are designed to work with stock components, but are much more than a stock replacement. Dart blocks are cast from premium high strength Iron with extra thick cylinder walls and decks. The main webs are beefed up and fitted with steel