LS7 427" N/A - Nitrous Short Block
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$8,200.00This 427" short block has proven time and time again as a solid foundation for your high horsepower needs. The versatility of the naturally aspirated LS7 platform will fulfill your demand from twisted axle rock crawlers to the wide open everglades in an air boat. Filled with nothing short of the highest quality tested parts, this short block is built with reliability in mind even with the worst punishment you can give it.
Displacement: | 427" | Bore: | 4.125" |
Proven Power Rating: | 800 RWHP | Stroke: | 4.000" |
Compression Ratio: | 12:1 | Rod Length | 6.125" |
Cylinder Head Compatibility: | Any LS Configuration | Oil System Type: | Dry or Wet Sump |
Block: | Choose from options |
Crankshaft: | Callies 4340 Compstar w/ LME Blueprinting Process |
Connecting Rods: | Callies Compstar Xtreme H-Beam w/ARP 2000 7/16" Bolts |
Pistons: | Diamond Custom Forged N/A w/Gas Ports |
Wrist Pins: | Trend Tool Steel Standard Wall |
Ring Pack: | NPR Stainless Top (for high heat applications) Napier Second, 3mm Oil |
Bearings: | Clevite H Series Main & Rods, Dura-Bond One Piece Cam Bearings |
Main Studs: | ARP |
******ATTENTION******* GM HAS DISCONTINUED THE LS7 BLOCK. LME NO LONGER OFFERS NEW LS7 BLOCKS. PLEASE CHOOSE FROM THE OPTIONS WE PROVIDE, YOUR LS7 BLOCK, LSR or DART BLOCK.
LME Standard Shortblock Blueprinting Process:
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