The LSX Iron Block is based of the LS7 block with more material in critical areas to increase strength and allow for up to 4.200" bore which leaves a .200" wall thickness. This block can support 454 cubic inches displacement. Thicker decks and 6 bolts per cylinder. Can accept all gen 4 LS cranks, cams, heads, oil pans, accessories ETC.
These blocks have been used in forced induction combinations that have seen north of 2000HP
GM part number 19417351
KIT INCLUDES Unique rear cover, cam plate, cam bearings and lifter guides.
LSX Bowtie Block – Standard Deck
• 3.880" finished siamese cylinder bores
• 9.260" semi-finished standard deck height (ready to be decked)
• 4.250" maximum stroke (professional engine builders only!)
• Capable of 364- to 482-cubic-inch displacements
• Orange powder-coated finish
• Accepts all LS and LSX Series heads, cranks, cams, etc.
• Approximate finished weight is 225 pounds
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
For the advanced LSX competition engine builder, you will fully enjoy the following features of the new LSX Bowtie Block:
• Front oil feed holes can be plugged/restricted for mechanical flat tappet or mechanical roller lifter applications
• Can be machined safely to 9.200" deck height
• Maximum 4.200" bore at .200" minimum wall thickness (naturally aspirated applications)
• Head bolt holes can be machined for 1/2" studs
• Cam bores can be machined to accept 60mm roller bearings
• Can be machined for larger diameter lifters and/or 1.060" bronze bushings
• Front oil feed lines can be plugged and external oil pump and/or aftermarket dry sump systems can be used via oil pump feed at rear of block – may be required with certain large stroke/aluminium rod combinations
• Belt cam drive systems can be accommodated – some machining will be required
• Front motor plate can be used for racing chassis applications (sprint car, drag racing, truck pulling, etc.).
• Threaded water plugs can be used for external heaters or coolers
• Extra stock for main bearing align-honed
• 400 mPa tensile strength iron
- Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up.
- NOW IN SMEATON GRANGE!
