New LT4 Supercharged 416ci Wet Sump Engine w/ non direct injection – 871HP
Selling on a Bring a Trailer online auction. View the auction here:
https://bringatrailer.com/listing/engine-174/
This new LT4 Supercharged 416ci Wet Sump Engine w/ non direct injection was dyno tested with 871 horsepower on pump pas. It was professionally built by Aaron Kurt at Late Model Engines located in Houston, Texas. The Chevrolet Performance LT4 Supercharged crate engine is rated with 650 horsepower and 650 lb-ft of torque. Aaron built this engine for himself personally with an open checkbook utilizing the best of high performance parts. His vision was to build a pump gas engine with massive power and no direct injection capability so it can run like LS with an aftermarket ECU. He completed this masterpiece in November of 2024. It was dyno tested at Late Model Engines on November 8th, 2024 and 871 horsepower with 796 lb-ft of torque on 93 octane pump gas with 11 psi of boost. His plan was to install the new engine in a vehicle he owned but decided to go in a different direction. MS CLASSIC CARS purchased the engine directly from Aaron in April of 2025. MS CLASSIC CARS had intentions of installing it in a vehicle at some point in the future but decided to offer it for sale. October of 2025 is the first it's been listed for sale. The Chevrolet Performance LT4 Supercharged crate engines are scarce and very desirable. This is the ultimate LT4 engine and a great opportunity. An engine specifications sheet, parts list, dyno sheets and engine stand are included. MS CLASSIC CARS will assist the new owner with packaging and shipping anywhere in the lower 48 United States.
PARTS LIST IN NO PARTICULAR ORDER:
GM LT4 OE block bored to 4.070”.
Callies 5TO-31Q-CS.0” LT1/LT4 crankshaft.
Texas Speed I-Beam connecting rods with ARP 2000 bolts.
Diamond 2K 4.070” pistons 911LME.
Trend wrist pins H927-2250-250.
Piston rings total seal 4.070” LME4070.
ARP main studs 234-5802.
Clevite H Series main bearings MS2299H STD.
ACL rod bearings 8B663HN-STD.
OE GM camshaft bearings.
Cam Motion custom camshaft S/N 117491 (244/252 DUR/.630 Lift 116+4).
Johnson tie bar lifters 2116LSR.
Cloyes timing chain 9-303.
LME VVT delete billet wet sump timing cover powder coated textured black.
LME modified Cloyes camshaft gear.
Katech wet sump oil pump KAT-A7502.
LME billet timing chain guide.
OE GM LT1/LT4 crankshaft gear 12713934 modified for Callies Crankshaft.
OE GM Rear Cover with OE GM rear crankshaft seal.
GM OE LT4 cylinder heads ported by LME with no direct injection provisions.
GM LT1 hollow stem intake valves 12629513.
R.E.V. stainless exhaust valves X1136.
Brian Tooley valve springs .660 lift SP001.
GM OE LT4 head gaskets 12654622.
LME titanium valve spring retainers R1-045/R1-100.
GM OE LT1/LT4 rocker arms with Comp-Cam trunnion upgrade.
ARP head studs LT1/LT4 234-4342.
Manley 3/8 .080 Wall push rods 7.975” OAL.
ICT billet fuel pump lifter block off plug and plate.
ATI crankshaft balancer 918856.
ARP balancer bolt 234-2503.
GM OE LT4 Supercharger ported by LME with new bearings and oil 103<< throttle body opening.
LT4 OE tall powder coated chrome and black textured Supercharger lid.
LME billet DOD delete valley cover powder coated textured black.
DSX ultra low port injection plates.
Fuel injector connection 1300cc fuel injectors 1300.34.14.15.
Grip Tec 2.30 upper supercharger pulley with ZPE hub.
DSX 9.06 lower supercharger pulley.
Holley LT4 mid height accessory drive system no P/S pump, AC Compressor)
LT swap 6-qt oil pan.