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Ed Rinke Performance

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Aluminum Race Blocks

Aluminum Race Blocks
Less weight and the same great horsepower are the benefits of a Chevrolet
Performance Aluminum Race Block. Chevrolet Performance Aluminum Race
Blocks provide the same competition-level strength and reliability of our
cast-iron Race Blocks, but their lighter weight improves chassis dynamics.
The super-tough A-356 aluminum competition blocks are CNC-machined to
+/- 0.001-inch tolerances. Chevrolet Performance Aluminum Race Blocks are
ideal for road racing applications or high horsepower turbocharged engines.*
See chart on page 120 for complete specifications.

Chevrolet Performance Aluminum Race Block Technical Notes:
• Extra-thick deck surfaces with blind-tapped head bolt holes for improved
head gasket sealing
• Centrifugally spun cast-iron cylinder sleeves
• 2-piece rear-main crankshafts and pre-1986 oil pans required
• Enlarged cam bosses allow machining for larger cam bearings
• 2.000" O.D. (1.867" I.D.) cam bearings P/N 12370843 required
• Blocks may require clearancing at top of lifter bores (0.842") for some
roller lifters
• Timing system clearance should be checked before engine assembly
• Extra thick main bearing bulkhead machined at 5°
• Premium main studs and steel main bearing caps
• Priority main oiling system
• Billet wet sump rear main cap can be converted to dry sump with plugs
• Oil dipstick holes not drilled
• Comes with dowel pins