Mullins Race Engines LS7 Latemodel

Mullins Race Engines LS7 Latemodel


The LS7 makes a great engine for a dirt latemodel.  We have made serious strides since we introduced it in 2020.  Our latest changes to the front of the engine makes it the most compact engine available today.  We are 5-6″ shorten than a ford, & 2-3″ Shorter than a Widebore.  The engine is light as well.  Fully Dressed we are under 345 lbs.  Besides it being light and short, the engine is an absolute Power House!  We have set overall fast time at Lucas Oil Shows on 6 different occasions with regional racers.  That shows the the power is there.  These are on bigger race tracks as well.  With all the latest changes to the cooling side of the engine, we are seeing cooler temps than anything currently on the race track/  We have made strides in the driveability as well.  Our latest Billet Manifold has helped with restarts and taking the surge out of the powercurve on the slick tracks.

Additional LS7 Latemodel Options

Product price: $45,098.18
Total options:
Order total:

Pay a deposit $2,000.00

$2,000 Deposit Required to begin production


$2000 Deposit Required to Start Engine Build

Remaining Balance Due Via ACH When Engine Build is Complete


LS7 Latemodel PARTS:
U31937211 – Dart SHP LS Next Non-Skirted Aluminum Bare Block, 9.240″ Deck  X 4.125″ Bore, LS Steel Main Cap, Fully Machined
MRE-LS7IDCSUG2 – LS7 Integrated Deck Cooling System Upgrade GEN 2
APO-34@-UD – Callies Billet Ultra Dirt 4.000″ Stroke X 2.000″ Pins X 2.559″ Mains With Aero Shed
U16310 – Callies Connecting Rods LS1 Ultra H-Beam 6.125″ Length X 2.000″ Rod Journal, .927 Wrist Pin, Set of 8
197877455 – LS7 Flattop Pistons 4.155″ X 1.110″, Set
9288283 – Mahle Wrist Pin, .927″ X 2.288″ X .168″ Wall Chamfered, 128 Grams, Heavy Duty DLC Coated
4160MS-112 – Mahle Piston Ring Set, 4.155″ + .005″ 1.0, 1.0, 2.0MM File Fillet
MS-2199H-C – Coated Main Bearings, H-Series, STD, GM LS-Series
CB-745HN-C – Coated Connecting Rod Bearings, H-Series, STD, Narrowed, 2.000″ Rod Journal
RC-LS-55-937-7-TOOL STEEL – Roller Camshaft, 55mm
XTS95101 – LS Next Elite Series Cam Drive
DSLSNXT16 – Dan Olson LS Next Block Dry Sump Oil Pan With #16 Fitting
ATI-LSY-TR-90 – LS ATI Damper With Trigger Shell For UMP
B-2024-16-X1-BB4 – BAM .904″ LS-Next Double offset, Int & Exh O/S 210 L & R-BB4
MRE-LS7MLSGK – LS7 Complete Gasket Kit
66120028B – Dart LS7 Head Stud Kit
MRE-LS7-S1AH – LS Gen 1 Head, Fully Machined and Assembled
MRE-LS7HLOUG2 – LS7 Head Lightening Option
T8601657 – Trend 8.600″ Length, .165″ Wall, 7/16″ Diameter, Pushrods
2298-0720-0721-0727 – T&D Rocker Shaft System – LS7 Spring Oil Hole, Bushings, and Steel Bodies
LS7-VTA – LS7 Valley Tray Assembly
MRE-LS7BIM – MRE LS7 Billet Manifold
LS GEN 2 Timing Cover – MRE LS Gen 2 Timing Cover With 2 Crank Trigger Provisions
MOR60055 – Crank Trigger Transducer, Magnet-In-Wheel Style (Quantity: 2)
MRE-LSBVC2023 – MRE Custom LS Billet Valve Covers
LS7-OFF – LS7 Oil Feed Fitting (Quantity: 1)
LS7-OLK – LS7 Valve Spring Oil Line Kit (Quantity: 1)
MRE-LS7BMVCCBSK – LS7 Complete Bolt and Washer Kit
39-11901 – Performance Break in Oil 15W-50
1061 – NAPA Gold Oil Filter
NGK R5671A-9 – NGK Spark Plug, 14mm Thread, 0.749″ Reach, Gasket Seat, Stock # 5238, Non-Resistor, Set
Fuel – Race Fuel to Dyno Engine
1020-LS7-DLM – MRE GEN 2 Front Drive Kit
LS7-HDA – LS7 Horizontal Distributor Assembly
MRE-LS-FD-REV LS-UH – Mullins Race Engines Spark Plug Wire Set
ALL10123 – Allstar Engine Lift Plate, 3/16 Inch Thick, Steel, Zinc Oxide, Spread/Square Bore Carb Flange


Horsepower and Torque on Race Fuel:


Spark Plugs Requirements:
NGK R5671A-9 Gapped at .035

Fuel Recommendation:

VP Late Model Plus

Oil Recommendation:
Maxima Semi-Synthetic 20W/50 – Change Oil Every 5 Nights

Oil Capacity:

Not Available

Laps Before Freshening:
1500 With Valve Spring Change Midway

Lash Settings:
.016 – .016 Hot or .003 – .005 Cold
Set or Check Valves every 5-8 nights

27 degrees @ 5000 rpm

Additional information

Weight 450 lbs
Dimensions 48 × 40 × 24 in
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