: GM PERFORMANCE PARTS BOWTIE SPORTSMAN BLOCK This is the block to buy if you want to ... GM Performance Parts Bowtie Sportsman block has been the starting point for ... countless racing engines. These iron blocks are available in a variety of finish ... any engine combination. Most of these blocks have siamesed cylinder walls 1 and four ... -bolt main caps 2 that are secured by Grade 8 ... bolts. All blocks in this family have a 9.025 deck ... height. The Bowtie Sportsman blocks are a great foundation for your serious ... between 350 and 500 horsepower. Bowtie blocks are called out by main journal sizes (i ... 400) if the bore is not standard to the main size. Example: #24502501 350 Main- 283 ... Bore size has standard 350 main journal sizes, however the bore is ... to remember 283s). Bowtie Sportsman Block Technical Notes: 2.00" O.D. cam ...
Bowtie V-6 Bare Block (rear) A Bowtie V-6 Bare Block (front) A NOTE ... : 238 V-6 90 ENGINE BLOCKS 10205294 Cast Iron Bare Block Cast iron ... bare block as used in production 4.3L 90 V-6 ... with 4.00" cylinder bores and two-bolt main bearing caps. Uses one-piece rear main ... seal and is machined for either roller or ... flat tappets. Has two oil galleries and an open lifter valley. ... production crankshafts with two-piece rear seals can be installed using seal ... 10051118. A. 10185051 Bowtie V-6 Bare Block Fully CNC-machined block with siamesed ... height is 9.025". Features 8620 steel main caps, priority main oiling, 2.00" O.D. ... cam bearings and wet sump oiling. 25534333 Sportsman V-6 Bare Block This ... is a fully CNC-machined Bowtie block similar in size, dimensions and ...