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ENGINES

Our main focus is the L-series (6cyl), but we do L4, R16, and U20 engines as well.

We offer 5 stages of engine builds, in addition to a stock rebuild. We are beyond an engine assembler or a machine shop. We design and develop our proprietary engine parts to use in our signature series builds to maximize the performance, reliability and longevity. The stage-2 and up will come with value added items, such as a signed and individually numbered engine plaque, a Certificate of Authenticity, and an Engine Score Card. 

OUR PACKAGES

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Eiji Hosomi

SERIAL NO.
HAND BUILT BY
DATSUN SPIRIT, INC.
MANASSAS, VA USA

Eiji Hosomi

SERIAL NO.
HAND BUILT BY
DATSUN SPIRIT, INC.
MANASSAS, VA USA

Eiji Hosomi

SERIAL NO.
HAND BUILT BY
DATSUN SPIRIT, INC.
MANASSAS, VA USA

Eiji Hosomi

SERIAL NO.
HAND BUILT BY
DATSUN SPIRIT, INC.
MANASSAS, VA USA
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STAGE-5 GOLD PLAQUE

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​Ultimate L-engine package. Very limited availability. Serious inquiry only. 

SPECS

  • Base Engine:​​ L28 with N42 head

  • Bore x Stroke:​​ ​89mm x 79mm (longer stroke possible)

  • Pistons:​​​ DSI ultimate short profile pistons 

  • Rods:​​​ DSI H-beam rods

  • Crankshaft:​​ L28, LD28 crankshaft (customer supplied core), or billet crankshaft (85mm and up)

  • ​Newly casted PAMS/JMC head (Not available)

  • Not taking orders as of 1/1/2024

PRICE

Not taking orders

STAGE 5

STAGE-4 SILVER PLAQUE

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The Stage-4 engine package is the ultimate street and track performance package. At the 2019 SEMA show, we proved the world beating performance and durability of this engine at the Optima Batteries Ultimate Street Car Challenge. Designed and built for competition and street use in mind. 

SPECS

  • Customer must provide a core Engine:​​ L28 (N42 or F54 block. N42 cylinder head)

  • Bore x Stroke:​​ ​89mm x 79mm (longer stroke possible)

  • Pistons:​​​ DSI Stage-4 ultra light pistons

  • Rods:​​​ DSI H-beam rods

  • Modified L28, LD28 (customer supplied core), or billet crankshaft

  • DSI Stage-4 ported cylinder head

  • ​​​New camshaft (2024)

  • Adjustable camp sprocket & precise valve timing work 

  • DSI Big Valves, DSI valve guides, DSI Stage-4 series springs & retainers, new OEM rocker arms

  • Pump gas (93 octane) ready.

  • Customer must supply core engine

  • 18+ month lead time

  • Performance: 300 RWHP* 

  • Must be installed & tuned by us. No exceptions. 

PRICE

Not taking orders

STAGE-2 BLACK PLAQUE

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If you are not looking for too much power, but just looking to get a smoother, faster revving sportscar experience, not like a sleepy stock engine, then this package is for you. 

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The Stage-2 engine will have a completely refined revving characteristics and a bit more power, with greatly improved fuel economy. You are still able to run the stock carburetors/fuel injection system, so overall this is a good starter package.

SPECS

  • Base Engine:​​ L24/L26/L28 

  • Bore x Stroke:​​ ​87mm x 79mm (*86mm for L24/L26)

  • DSI L28 pistons 

  • L28 rods

  • L28 crankshaft

  • ​​​DSI Stage-2 street cam

  • Compression: appx 9.5 ~10 to 1

  • Pump gas (93 octane) ready.

  • New OEM rocker arms highly recommended ($290.22/ea, $3482.64 for 12)

  • 3-4 Months lead time

  • Performance: 150-190 RWHP*

PRICE

STARTING AT $7900

STAGE-3 BRONZE PLAQUE

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Our Stage-3 engine package is the most popular engine package that we offer. It has the best balance between performance and cost. This package gives the quick revving, highly responsive engine, but in a much more streetable package. If you are looking for a highly responsive naturally aspirated engine experience, with occasional track day, auto-X or strip capabilities, with relatively low maintenance needs, look no further. 

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SPECS

  • Base Engine:​​ L28 (we can do this with a L24/L26 as well)

  • Bore x Stroke:​​ ​89mm x 79mm 

  • DSI Stage-3 ultra light pistons

  • DSI H-beam rods

  • L28 crankshaft

  • DSI Stage-3 camshaft

  • DSI Stage-3 valve springs & retainers

  • Compression: appx 11.0:1

  • Pump gas (93 octane) ready.

  • New OEM rocker arms highly recommended ($290.22/ea, $3482.64 for 12)

  • Adjustable cam sprocket and dial in valve timing work highly recommended (+$275)

  • 3-4 Months lead time

  • Performance: 200-240 RWHP*

PRICE

STARTING AT $9250

STAGE 4
STAGE 3
STAGE 2

STAGE-1

Currently unavailable.

SPECS

  • Currently unavailable 

PRICE

N/A

STAGE 1

STOCK REBUILD

​We do more than performance engines and we can do stock rebuild. If Keeping it stock is your goal, we can help.

 

*Note: E31, E88, and some early N42 cylinder heads came with brass intake valve seats intended for leaded-gas setup. These brass valve seats are, without exception, eroded and must be replaced. These heads are found on the 240z and 260z, and some early (1975) 280z’s. This is the reason for the higher price than the L28 Overhaul.

SPECS

  • Base Engine:​​ L24/L26/L28 

  • New OEM rocker arms highly recommended ($290.22/ea, $3482.64 for 12)

Stock rebuild PRICE

$4,800 For L28
$5150 For L24/L26

STOCK

DISCLAIMER

The listed engine prices do not include core engine charge, installation, setup, tuning, or shipping. The engine price is for a bare engine (Fully assembled engine, with valve cover, oil pan, and oil pump). It does not include any peripheral parts (i.e. carburetors, exhaust, ignition system, harmonic damper, water pump, alternator, manifold stud kit, starter, flywheel, clutch, thermostat, etc) Any and all peripheral parts are offered separately. 


We recommend using new OEM rocker arms (for all builds) and adjustable cam sprocket and valve timing work (Stage-3 and above). Customers are to provide core engine, or need to purchase one from us (limited availability). 

 

We have limited availability of core engines, and we may not always have the exact head/block combination that you desire. Core charge for an engine is TBD.  (Very limited availability). 

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Prices and availability are subject to change without announcement.

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Notes:
• A core engine must be re-usable. 

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• Special repair work (i.e. warped head, corrosion, cracks, rust, broken bolts, undersizing crankshaft, sleeving cylinder, etc.) will be invoiced separately at cost.

• When sending/bringing a core engine, please remove intake/exhaust/clutch/flywheel

 

You may send/bring us the whole engine assembly with manifolds and other peripheral parts, but keep in mind doing so will incur labor to remove these extra parts.

Any further questions? Please contact us.

 

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