LME LTR 427" 1400+HP LT1/LT4 LONGBLOCK
Our 427" LTR Longblock is a proven combination to get more cubic inches and power for your ride. This block will go into any C7, or 6th Gen Camaro! Trucks? Of course! Any 5.3 or L86 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. We will customize your cam for your exact combination. These are made to order. Debating on part availability we can have an engine done in 4-8 weeks.
| Displacement: | 427" | Bore: | 4.125" |
| Proven Power Rating: | 1400HP | Stroke: | 4.000" |
| Compression Ratio: | 10.5:1 w/ 64cc Chamber | Rod Length | 6.125" |
| Cylinder Head Compatibility: | LT1, LT4 | Oil System Type: | Wet or Dry |
| Block: | Concept Performance LTR Block |
| Crankshaft: | Callies Compstar 8 Counterweight w/ LME Blueprinting Process |
| Connecting Rods: | Callies Compstar Xtremes Rods 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 |
Heads : LME Ported and Prepared CID HEADS. Heads are setup for the larger 4.125 bore you see in a 427". Heads can be outfitted the way you like. Our 1800HP Package comes with Factory rockers upgraded with a CHE Trunnion Kit.
Intake: Not Included in price
LME Standard Shortblock Blueprinting Process:
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