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CRATE ENGINES LS SERIES
Available for purchase online at
gmperformanceparts.com
LS327/327
19165628
a classic combination built with modern
ls technology
Reverence for GM’s powertrain heritage has always been part of the LS
engine family’s legacy, from the same 4.40-inch bore centers found on the
original Small-Block to acknowledgements of past engines, as seen in our
LS327/327 crate engine. It’s a 5.3L LS power plant with the same 327-cubicinch
displacement of the high-winding Small-Blocks from the 1960s.
Introduced in 1962, the 327 was found in everything from fuel-injected
Corvettes to the very first Camaros. It was renowned for its high-rpm performance
and surprising torque from a comparatively small-displacement V-8.
Our powerful and economical LS327/327 crate engine delivers a strong
327 horsepower and 347 lb-ft of torque. It is based on the 5.3L engine
used in thousands of GM trucks and SUVs, but it is “breathed on” by GM
Performance Parts engineers with a hotter cam, Grafal-coated high-silicon
pistons and more. An iron block reinforces the engine’s strength and keeps
down the cost, making it the perfect combination for re-powering your truck
(depending on the emissions regulations in your area) or dropping a budget
LS engine into your classic vehicle or street rod.
MOsT ecONOMical ls craTe eNGiNe
Grafal-cOaTed PisTONs
327 hP / 347 lB-fT TOrque
INSTALLATION NOTES
• Not for Active Fuel Management applications
• Assembly does not include any electronics or
intake manifold
• Includes oil pan
• Intended for pre-1976 street vehicles or any
off-road vehicle
• Not intended for marine applications
• For carbureted applications, use intake manifold
P/N 88958675, and MSD Ignition Module
P/N 6010
CRATE ENGINES LS SERIES
The 327 is a classic GM engine and, with the LS327/327, that heritage is
carried on to the next generation!
See page 300 for information on our reference guide P/N 88959384 for
installing an LS engine in an older car.
ls327/327 dyno chart
Possible aPPlications*
ls327/327 tech sPecs
Give your work truck a workout
Get your late model suV back up and
running
install a juiced-up 5.3 into something
special
*Applications have not been validated.
They are merely suggestions of how you
might enjoy your GM Performance Parts
crate engine. Some applications may affect
engine warranty. See page 352 for specific
warranty information. Some applications
may not be emission-legal; check state and
local ordinances.
Part Number: 19165628
engine Type: LS Series Small-Block V-8
displacement (cu in):
327 (5.3L)
Bore x stroke (in):
3.78 x 3.62 (96 x 92mm)
Block (P/N 12551360):
Cast-iron with 6-bolt,
cross-bolted iron main caps
crankshaft (P/N 12553480):
Nodular iron
connecting rods (P/N 12568734): Powdered metal steel
Pistons (P/N 12571545):
Hypereutectic aluminum
camshaft Type (P/N 12561721): Hydraulic roller
camshaft lift (in):
.467 intake / .479 exhaust
camshaft duration (@.050 in): 196° intake / 201° exhaust
cylinder heads (P/N 12559865): Aluminum; cathedral port
Valve size (in):
1.89 intake / 1.55 exhaust
compression ratio: 9.5:1
rocker arms (P/N 10214664): Investment cast, roller trunnion
rocker arm ratio: 1.7:1
recommended fuel:
87 octane
Maximum recommended rpm: 6000
reluctor wheel:
24X
Balanced:
Internal
Available for purchase online at
gmperformanceparts.com
GM Performance Parts Crate Engines include a 24-month
or 50,000-mile/80,000-kilometer limited warranty.
GM Performance Parts does not utilize any used
or remanufactured parts in this crate engine.
For a complete list of parts to complement and finish this engine, turn to page 80.
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