19260099 - LSX Finished and Honed 4.185" Bowtie Block
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
Chevrolet Performance 19260099 - LSX Finished and Honed 4.185” Bowtie Bare Block
The LSX Bowtie Engine Block showcases three major improvements
1. Added support on the deck surface.
2. Material Strength: 400 mPa tensile strength, compared to the 250 mPa previously offered. Material: Iron, G4000 with Molybdenum
3. Annulus cut within the cam bearing surface within the block for improved oil feed location. This allows for the oil feed hole to be located at three o'clock position versus the six o'clock position.
LSX Bowtie Block specs and features include:• CNC-machined cast iron block
• True priority main oiling
• 6-head bolts per cylinder
• Standard 4.400” bore spacing
• Extra-thick siamese cylinder bores
• Semi-finished, machined thicker decks
• LS7-style, 6-bolt dowel-located billet main bearing caps
• Wet-sump and dry-sump oiling capability
• Production-style deep-skirt head bolt holes
• Production bolt hole and thread sizes
• Maintains production exterior accessory mounting provisions
• Front motor plate mounting holes added
• Additional material cast around cam bearings for greater strength
• 8mm exterior/interior fifth- and sixth-head bolt holes
• Standard 0.842” lifter bores
• Accommodates all LS oil pumps and oil pans
• External oil pump feed (rear of block)
• Main web bay-to-bay breathing holes to support greater horsepower
• Includes unique cam retainer, rear cover and lifter retainers
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