ENGINE BLOCKS
Chevrolet Big Block Brodix Iron Engine Blocks
Brodix Cast Iron Blocks Feature Premium Iron Alloy. Standard features: Standard cam location, 2-piece rear main, priority main oiling, 4-bolt splayed nodular iron main caps, .842" lifter bore, fuel pump boss, motor mount, oil pan rails and starter. Locations are all OE specs. Additional 10 degree head bolt lugs machined in deck area. Blocks will require align honing. Part No. Description Bore Deck Ht. Main Bore Main Cap Cam Journal BROBRB4584212 BBC Iron Block 4.500" 9.800" 454 4-Bolt BBC BROBRB4584298 BBC Iron Block 4.500" 10.200" 454 4-Bolt BBC
“Big M” Iron Engine Blocks The blocks that set the standard for big block Chevrolet include siamese bores, scalloped water jackets, redesigned oiling systems, valley head stud bosses, adequate clearances for stroker cranks and four-bolt steel main caps. Part No. Description Bore Deck Ht. Main Cap DRT31243344 Big M Mk IV Iron Block 4.250" 9.800" Iron DRT31263344 Big M Iron Block 4.250" 9.800" Steel DRT31263444 Big M Iron Block 4.500" 9.800" Steel DRT31263454 Big M Iron Block 4.500" 10.200" Steel DRT31263644 Big M Iron Block 4.600" 9.800" Steel DRT31263654 Big M Iron Block 4.600" 10.200" Steel DRT31273644 Big M Sportsman Iron Block 4.600" 9.800" Iron DRT31273654 Big M Iron Block 4.600" 10.200" Iron DRT31273344* Big M Sportsman Iron Block 4.250" 9.800" Iron DRT31273444* Big M Sportsman Iron Block 4.500" 9.800" Iron DRT31273444VI*** Big M Mk VI Iron Block 4.600" 9.800" Iron DRT31273454* Big M Sportsman Iron Block 4.500" 10.200" Iron DRT31283665** Big M Race Iron Block 4.600" 10.600" Steel DRT31283675** Big M Race Iron Block 4.600" 11.100" Steel *Sportsman Blocks do not include freeze plugs, coated cam bearings and dowels. **2.125" Cam Journal, +.600" Raised Cam, .904" Lifter Bore *** 1-piece rear main seal Dart Aluminum Blocks Dart aluminum blocks deliver big power in a lightweight block. Race series blocks incorporate increased deck heights and a raised cam location. +.400" raised cam height. Part No. Description Bore Deck Ht. Main Cap DRT31264655 Alum. Race Series 4.600" 10.200" Steel Big M 8.1 Gen 7 Big Block The metric 8.1L big block has been improved with a strengthened design and priority oiling as well as greater cooling with the use of full water jackets. The stepped main oil gallery increas- es oil flow to the crankshaft at high rpm, resulting in more oil at the bearings and pushrods and less power robbing crankcase windage. Cam bearings, freeze plugs, or dowels must be ordered separately. Part No. Description Bore Deck Ht. Main Cap DRT31253354 Gen 7 Iron Block 4.250" 10.236" Iron BB Chevrolet 502 CID Gen VI Bare Block Production-based, Gen VI cast iron block features four-bolt main caps, standard 9.800" deck height and 4.470"-4.500" bore range. Part No. Description Bore Deck Ht. Main Cap GMP19170540* 502 Mark IV/GenVI Iron Block 4.470" 9.800" Iron *1-piece rear main seal
DRT31263454
2018 ENGINE BUILDER CATALOG
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