368789

MY STORE LME LTR 427" 1800+HP LT1/LT4 LONGBLOCK

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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:1800HPStroke:4.000"
Compression Ratio:10.5:1 w/ 64cc ChamberRod Length6.125"
Cylinder Head Compatibility:LT1, LT4Oil System Type:Wet or Dry







































Block:Concept Performance LTR Block
Crankshaft:Callies Apex 8 Counterweight w/ LME Blueprinting Process 
Connecting Rods:Boostline 6.125" 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 1400HP and 1800HP package comes with factory rockers upgraded with a CHE trunnion kit, Our 2000HP + package will come with manton rockers.


Intake: Not Included in price. +4995 for Natural. $5249.00 Black, 


LME Standard Shortblock Blueprinting Process:


















































  • Block is fully deburred & inspected for flaws







  • Cylinders diamond honed with torque plates for optimal clearance per application







  • Crankshaft journals indexed & trued to exact tolerance







  • Optimal cylinder geometry achieved with diamond hone and surface finish verified with profilometer







  • Chamfered oil holes for improved oiling to bearings







  • Cylinders machined for rod clearance per application







  • Crankshaft journals polished to 2 Ra or better surface finish







  • Block and components meticulously deburred & cleaned after machining process







  • Crankshaft balanced within ¼ oz-in tolerance







  • All five main bearings & all eight rod bearing clearances measured and adjusted for application







  • Connecting rod housing bores checked & adjusted for optimal roundness & size







  • Ring are precision file fit per application







  • Piston pin bores measured & adjusted for application







  • Cam bearings installed and test cam fitted to ensure smooth rotation







  • Block aline honed and set to low of spec for maximun bearing crush







  • All oil galley plugs and dowel pins installed







  • Deck surfaces machined perpendicular to mains & deck height set for optimal quench







  • Meticulous final assembly of shortblock







  • Cylinders bored (when applicable) on 4 axis CNC perpendicular to mains giving you a true 90o  V8







  • All tolerances, clearances, machining specs, and part numbers are recorded and documented in build sheet






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.

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