Our 427" LSR Shortblock is a proven combination to get more cubic inches and power for your ride. This block will go into any LS-powered vehicle! Any LS1,LS2,LS3,LSA,LS7 or LS9 can be pulled out and replaced with this stout unit! This engine is set up for a forced induction application. Supercharger, turbos, procharger it doesn’t matter this engine will take it. The aluminum block saves weight for those applications in need of weight savings.
| Displacement: | 427" | Bore: | 4.125" |
| Proven Power Rating: | 1400 HP | Stroke: | 4.000" |
| Compression Ratio: | 10.5:1 w/ 64cc Chamber | Rod Length | 6.125" |
| Cylinder Head Compatibility: | Any LS | Oil System Type: | Wet or Dry |
| Block: | Concept Performance LSR Block |
| Crankshaft: | Callies 4340 Compstar 8 Counterweight w/ LME Blueprinting Process |
| Connecting Rods: | Callies Compstar XD (1600HP Rated)w/ARP Bolts |
| Pistons: | LME/Diamond 2K Custom Forged FI w/Gas Ports (.300" material above top ring land) |
| Wrist Pins: | Trend H-13 Tool Steel Heavy Wall .250" |
| Ring Pack: | Total Seal 1.5mm AP Stainless Top (for high heat applications) .043" Ductil Napier Second, 3mm Oil |
| Bearings: | Clevite H-Series Main & Rods |
| Main Studs: | ARP |
***CORE EXCHANGE SHIPPING: LME is happy to assist you in shipping your block and crankshaft cores to help you save money. Exchanging your block & crank cores helps reduce the overall engine build cost without sacrificing quality. We can have your existing shortblock picked up at a location convenient for you.
LME Standard Shortblock Blueprinting Process:
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USD : 92.69
WASHING INSTRUCTIONS:
Machine wash separately in cold water on a gentle cycle. Tumble dry separately on low heat. Add QE Home Wool Dryer Balls to reduce wrinkles and increases drying efficiency. Touch up with a low heat iron as needed. Do not bleach or dry clean.
