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1971 Datsun 240z - Datsun Spirit Engine Build

   (0 reviews)

1971 Datsun 240z - Datsun Spirit Engine Build

   (0 reviews)


  • Price $23,000
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0 Reviews


1971 Datsun 240Z (Dec 70 build year)

Datsun Spirit 3.0 Engine Build (under 1500 miles since complete)

Engine Build Details

L28 (N42) block + N42 Cylinder Head base

89mm (bore) x 79mm (stroke) = 2949cc

Combustion Chamber Volume: appx 37cc

Head gasket: Metal Head Gasket 90.5mm x1.0mm

Piston above deck: 0.42mm

Piston volume: -5.2cc 

Compression ratio: 11.7 : 1

Main cap Bolts Tightening Torque: 85N/m (High Strength Cap bolts)

Conn-rod Bolts Tightening Torque: 68N/m (Nissan OEM Bolts)

Head Bolts Tightening Torque: 85N/m (Nissan Turbo bolts)

Main cap Bearings:           STD undersize

Connecting rod Bearings: STD undersize

 Camshaft & Valve Timing

 Camshaft: Stage II

Duration 290

Max Valve lift: 12.45mm

Lobe Center: 106 (IN: 104)

Valve Timing @ 0.50” lift: IN: 19 BTDC, 47 ABDT, EX: 17ATDC, 53 BBDC 

Lash pads: IN: 7.0mm EX: 6.0mm

Bottom End

Block: N42 Block, Bored and honed

Crankshaft: L28 crankshaft, straightened to within 2/100”. STD size, journals polished

Rods: DSI 139.5mm rods

Pistons: DSI Stage III pistons. 89mm bore.

Headgasket: Multi-Layered Metal head gasket


Under the Hood

Aluminum radiator

Electric fans

Optima battery                                                                          

Mallory Distributor

DSI plug wires

Silicone radiator hoses

Aeroflow Catch Can

6 into 1 wrapped header

Adjustable fuel regulator

Fuel shut off valve

Lightweight H-beam Rods

Lightweight Flywheel

Carter Electric fuel pump

Custom fuel rail with pressure gauge

Kameri Intake

Brand New Weber Carbs 45 DCOE Tuned to 93 Octane Fuel

Adjustable Cam

Powdercoated valve cover

Arizona Z baffled oil pan

High flow oil pump

New Nissan factory engine mounts

New Nissan OEM Two Row Crank Pulley



280Z Manual 5 Speed with 3.545 rear ratio

Exedy Stage II Clutch



MSA Upgraded blade fuse box

Higher amp alternator

Gear reduction starter

PLX AIR/Fuel gauge

Auto meter water temp and oil pressure gauges

Wiring tucked and tidy with no gremlins



Techno Toy Tuning Suspension Parts Galore

Front Lower Control Arms, Tension Control Rods, Steering Bushing

Adjustable tie rods

Arizona Z Bump Steer Spacers and High Performance Steering Knuckles

Urethane Bushings

Cusco Front Strut Tower Brace

Techno Toy Tuning Rear Strut Brace

Suspension Techniques Front and rear sway bars

Tokico Illumina Adjustable Struts


Pedestrian Signaling

Hella horns

Intake sound from the gods

Middle finger



Willwood Master Cylinder

Upgraded Brake Booster

Front Toyota 4x4 Rotor conversion and 300zx Rear Disk Conversion

Stainless lines

Porterfield Pads



Bolt in Autopower Roll bar

Sparco Speed Seat with adjustable slider

Sparco Suede Steering Wheel

Drake Fire Extinguisher Mount

Techno Toy Tuning Steering Hub Spacer

Techno Toy Tuning Spare Tire Cover

Original driver and passenger seat included with new professional upholstery



MSA Carbon fiber rear wing

MSA body kit

17" wheels with 4 lug wheel adapter spacers

Kumho Ecsta V700 tires

Custom Exhaust

Front and Rear tow hook

Car is fast, has won numerous Autocross first place finishes and first place season finishes.  I have completed the work during my nearly 10 years of ownership.  It has been my passion and hobby restoring this vehicle.  Engine and drive-line is a 10 out of 10, paint is good except Rear fender has started bubbling from 10 year old paint job.  Paint still shows well.  Interior is very nice for a car of its type, no radio, no AC, no heat.  Car has way more than I am listing as I have forgotten much of what I have done over time.  If you have questions let me know.  I am selling as I have new hobbies and am ready to move on.  Car is sold as is with no warranties of any kind.  Many spares included

Winchester, Virginia - United States

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