Porsche Hybrids Wiki

 

LS1 LS6 Dimensions and Clearances

Page history last edited by gt1scca 1 yr ago

 

LS1 / LS2 / LS6 / LS7 General Engine Specs

 

 

 

LS1: A319 T5, 107#

Displacement = 5.7 L. / 346 CID

Bore x Stroke = 99mm x 92mm / 3.90" x 3.62"

Compression Ratio = 10.1:1

Horsepower = 345/350 HP @ 5,200 RPM

Torque = 350/375 #-Ft. @ 4,400 RPM

Redline = 6,000 RPM

Fuel Cut OFF = 6,200 RPM

 

All engine Generic Data:

Firing Order = 1-8-7-2-6-5-4-3

Spark Plug Type = 41-931

Spark Plug Gap = 1.524mm / 0.06"

Oil Type = Mobil 1 (E) 5W-30 Synthetic or Equivalent

Oil Capacity = 6.5 Quarts / 5.7 L. (With oil filter change)

Oil Pressure (Minimum - Hot):

1,000 RPM = 41 kPa / 6 psig

2,000 RPM = 124 kPa / 18 psig

4,000 RPM = 165 kPa / 24 psig

Length = 519mm / 20.43"

Width = 460mm / 18.11"

Cylinder Bank Offset = 24.10 mm / 0.949"

Bank Angle = 45 degrees

Deck Height = 234.7 mm /

 

 

LS6:

Displacement = 5.7 L. / 346 CID

Bore x Stroke = 99mm x 92mm / 3.90" x 3.62"

Compression Ratio = 10.5:1

Horsepower = 385/405 HP @ 6,000 RPM

Torque = 385/400 #-Ft. @ 4,800 RPM

Redline = 6,500 RPM

Fuel Cut OFF = 6,600 RPM

 

 

C5R: A356 T7

Displacement = 7.0 L. 427 CID

Bore x Stroke = 4.160" x

Compression Ratio = 12.5:1

Horsepower = 650 @

Torque = 525 @

Redline = 7,500 RPM

 

 

LS2:

Displacement =

Bore x Stroke =

Compression Ratio =

Horsepower =

Torque =

Redline =

Fuel Cut OFF =

 

 

LS7:

Displacement = 7.0 L. / 427 CID

Bore x Stroke =

Compression Ratio = 11.1:1

Horsepower = 500 HP @ 6,200 RPM

Torque = 475 #-Ft. @ 4,800 RPM

Redline = 7,000 RPM

Fuel Cut OFF = 7,100 RPM

Dry Sump

 

 

 

LS1 / LS6 Engine Dimensions & Clearances

 

 

 

KEY:

Production = (P), Service Limit = (SL), Out-of-Round = O-o-R

Run Out = RO, Inside Dia. = ID, Outside Dia. = OD

 

 

CAMSHAFT:

Base Circle Dia.:

'97-'04 LS1 = 19.7mm / 0.776"

'01 LS6 = 19.3mm / 0.760"

'02 -'04 LS6 = 19.0mm / 0.748

End Play: 0.025-0.305mm / 0.001-0.012"

Journal Dia.: 54.99-55.04mm / 2.164-2.166"

Journal Dia. O-o-R: 0.025mm / 0.001"

Intake Lobe Lift: 7.04mm / 0.277"

Exhaust Lobe Lift: 7.13mm / 0.281"

Roller Lifter Dia.: 17.78mm / 0.700"

RO @ Intermediate Journals: 0.05mm / 0.002"

Lobe Base Circle Radius:

'97-'04 LS1: 19.7mm / 0.776"

'01 LS6: 19.3mm / 0.760" (reduced for ^ valve lift)

'02-'04 LS6: 19.0mm / 0.748 "

 

CONNECTING ROD:

Bearing Bore Dia.: 56.505-56.525mm / 2.224-2.225"

Bearing Bore O-o-R (P): 0.004mm / 0.00015"

Bearing Bore O-o-R (SL): 0.008mm / 0.0003"

Bearing Clearance (P): 0.015-0.063mm / 0.0006-0.00248"

Bearing Clearance (SL): 0.015-0.076mm/0.0006-0.003"

Bearing Width: 24mm / 0.9449"

Side Clearance: 0.11-0.51mm / 0.00433-0.02"

Center to Center: 154.89mm / 6.098"

Piston Pin Bore Dia.: 23.97mm / 0.9436"

Piston Pin Boss Width: 24mm / 0.9449"

Piston Pin Press Interference:0.020-0.043mm / 0.0008-0.0017"

Rod Bolts: M9 x 1" (replace with ARP/Katech if > 450HP)

 

 

CRANKSHAFT:

Rotation = Clockwise (looking at front of block)

Bearing Clearance (P): 0.018-0.054mm / 0.0007-0.00212"

Con Rod Journal Dia. (P): 53.318-53.338mm / 2.0991-2.0999"

Con Rod Journal Dia. (SL): 53.308mm Min. / 2.0987" Min.

Con Rod Journal Taper (P): 0.005mm / 0.0002"

(Maximum for 1/2 Journal length)

Con Rod Journal Taper (SL): 0.01mm Max. / 0.0004" Max.

Con Rod Journal O-o-R (P): 0.005mm / 0.0002"

Con Rod Journal O-o-R (SL): 0.01mm / 0.0004"

Con Rod Journal Width: 48.37mm / 1.902"

End Play: 0.04-0.2mm /0.0015-0.0078"

Main Journal Dia. (P): 64.993-65.007mm / 2.558-2.559"

Main Journal Dia. (SL): 64.993mm Min. / 2.558" Min.

Main Journal O-o-R (P): 0.003mm / 0.000118"

Main Journal O-o-R (SL): 0.008mm / 0.0003

Main Journal Taper (P): 0.01mm / 0.0004"

Main Journal Taper (SL): 0.02mm / 0.00078"

Main Journal Width: 22.99mm / 0.905"

Reluctor Ring RO: 0.25mm / 0.01"

(Measured @ 1.0mm/0.04" below tooth Dia.)

Crank RO : 0.05mm / 0.002" (Measured at rear flange)

Flywheel Bolt Base Circle: 78.99mm / 3.110"

Stroke: 92mm / 3.622"

Rear Seal ID: 114.99mm / 4.527"

Thrust Wall RO: 0.025mm / 0.001"

Thrust Wall Width (P): 26.14-26.22mm / 1.029-1.032"

Thrust Wall Width (SL): 26.32 Max. / 1.036" Max.

 

 

CYLINDER BORE:

Bore Dia.: 99.0-99.018mm / 3.897-3.898"

Bore Taper Thrust Side: 0.018mm Max. / 0.0007" Max.

Bank Angle = 45 degrees

Cylinder Bank Offset: 24.10mm / 0.949"

 

 

CYLINDER HEAD: A356 T6

Block Deck Flatness: 0.11mm / 0.004" (within a 6" area)

Block Deck Flatness: 0.22mm / 0.008" (length of head)

Exhaust Manifold Deck Flatness: 0.22mm / 0.008"

Intake Manifold Deck Flatness: 0.22mm / 0.008"

Height: 120.2mm / 4.732" (Deck to Rocker Cover Surfaces)

Valve Angle: 15 degrees

Valve Guide Material = Sintered Iron (Press IN)

Valve Guide Separation: 48.6mm / 1.913"

Valve Seat Angles: 30/45/60 degree blend into chamber

Valve Stem Dia.: 8.001mm / 0.315"

 

 

ENGINE BLOCK: A319 T5 / 107#'s

Length: 519mm / 20.43"

Width: 460mm / 18.11"

Deck Height: 234.57-234.82mm / 9.235-9.245"

Cylinder Bank Angle = 45 degrees

Cylinder Bank Offset: 24.10mm / 0.949"

Center Main = Crank Thrust Wall #3

Indexing = Crank Center Line

Camshaft Bearing Bore Dia.: 55.063-55.088mm / 2.168-2.169"

Block Deck Flatness: 0.11mm / 0.004" (measured within 6")

Block Deck Flatness: 0.22mm / 0.008" (length of Deck)

Main Bearing Bore Dia. (P): 69.871-69.889mm / 2.750-2.751"

Valve Lifter Bore Dia. (P):21.417-21.443 / 0.843-0.844"

 

 

FUEL INJECTION:

LS1 Static Flow Rate = 3.6 gal/sec.

Cranking Fuel pressure = 53 to 63 psi

 

 

IGNITION:

Coil Output = 60mJ

Sparkplug Wire length = 219mm

Sparkplug Type = AC 41-931 / Beru Silverstone S1K

Sparkplug gap = 1.5mm / 0.060"

 

 

INTAKE MANIFOLD:

Head Deck Flatness: 0.5mm / 0.02" @ gasket mating surface

LS1 MAF ID = 75mm

LS1 Throttle Body ID = 75mm

LS6 MAF ID = 80mm

LS6 Throttle Body ID = 80mm

 

 

OIL PAN & FRONT/REAR COVER Alignment:

Oil Pan to Rear of Block: 0.0-0.25mm / 0.0-0.01"

(@ Bellhousing Surface)

Front Cover: 0.0-0.5mm / 0.0-0.2" (@ Oil Pan Surface)

Rear Cover: 0.0-0.5mm / 0.0-0.2" (@ Oil Pan Surface)

 

OIL PUMP:

Dia: 89.99mm / 3.543"

Gear Thickness: 10.69mm / 0.421"

Pressure Relief Setting (Factory): 60 psig @ 5,000 RPM

 

 

PISTONS: Cast Eutectic Aluminum, +'03 have coated skirts

Weight = 434 grams

Piston OD: 98.964-98.982mm / 3.8962-3.8969"

Piston to Bore Clearance(P): 0.018-0.054mm/0.0007-0.00212"

Piston to Bore Clear. (SL): 0.018-0.054mm / 0.0007-0.00212"

(Maximum)

Piston Deck Height in Operation: 0.203mm / 0.008"

(Above Deck Surface)

Top Land Thickness: 34mm / 0.177"

 

 

PISTON PINS:

Pin to Piston Bore (P): 0.01-0.02mm / 0.0004-0.00078"

Pin to Piston Bore (SL): 0.01-0.02mm / 0.0004-0.00078" Max.

Pin Dia.: 23.997-24.0mm / 0.9447-0.9448"

Pin Fit in Con Rod: 0.02-0.043mm / 0.00078-0.00169"

(Interference)

 

 

PISTON RINGS:

Top Comp. Thickness: 1.500mm / 0.59"

Top Comp. Gap Clocking: None Required

Top Comp. End Gap (P): 0.23-0.38mm / 0.009-0.0149"

Top Comp. End Gap (SL): 0.23-0.38mm / 0.009-0.0149" Max.

Top Comp. Groove (P):0.04-0.085mm / 0.00157-0.003346"

Top Comp. Groove (SL):0.04-0.085mm/0.00157-0.003346"Max.

2nd Comp. Thickness: 1.500mm / 0.59"

Top Comp Gap Clocking: None Required

2nd Comp. End Gap (P): 0.44-0.64mm / 0.0173-0.0251"

2nd Comp. End gap (SL): 0.44-0.64mm / 0.0173-0.0251" Max.

2nd Comp. Groove (P): 0.04-0.08mm / 0.00157-0.003149"

2nd Comp. Groove (SL):0.04-0.08mm/0.00157-0.003149"Max.

Oil Cont. Rail Thickness (2): 3.00mm / .188" (EACH)

Oil Cont. Top Rail Gap Clocking: 25 degrees from Top Ring

Oil Cont. 2nd Rail gap Clocking: 25 degrees from Expander

Oil Cont. End Gap (P): 0.18-0.69mm / 0.007-0.0271"

Oil Cont. End Gap (SL): 0.18-0.69mm / 0.007-0.0271" Max.

Oil Cont. Groove (P): 0.01-0.22mm / 0.0004-0.00866"

Oil Cont. Groove (SL):0.01-0.22mm / 0.0004-0.00866" Max.

 

 

VALVETRAIN: Hydraulic Roller

Rocker Arm Ratio = 1.70:1

Valve Lash Net Lash: No Adjustment

Valve Face Angle = 45 degrees

Valve Seat Angle = 46 degrees

Valve Seat RO: 0.05mm / 0.002" Max.

Valve Seat Width (Intake) = 1.02mm / 0.04"

Valve Seat Width (Exhaust) = 1.78mm / 0.07"

Valve Stem Clearances:

Intake (P): 0.025-0.066mm / 0.001-0.0026"

Intake (SL): 0.093mm / 0.0037" Max.

Exhaust (P): 0.025-0.066mm / 0.001-0.0026"

Exhaust (SL): 0.093mm / 0.0037" Max

Oil Seal Installed Height = 18.1-19.1mm / 0.712-0.752"

(Measured from VS Shim to Top Edge of Seal Body)

Valve Stem Dia. (P): 7.955-7.976mm / 0.313-0.314"

Valve Stem Dia. (SL) 7.9mm / 0.311 Min.

Valve Spring:

Free Length = 52.9mm / 2.08"

Pressure (Closed) = 340 N @ 45.75mm / 76# @ 1.80"

Pressure (Open) = 980 N @ 33.55mm / 220# @ 1.32"

Installed Height (Intake) = 45.75mm / 1.800"

Installed Height (Exhaust) = 45.75mm / 1.8"

Valve Guide Installed Height = 17.32mm / 0.682"

(Measured from Spring Seat Surface to Top of valve Guide)

Roller Lifter Dia.:17.78mm / 0.700"

Valve Material: Stainless Steel, Hollow Stems, Na filled Exhaust

Net Valve Lift: Intake/Exhaust

'97-00 LS1: 0.472" (11.99mm) / 0.479" (12.17mm)

'01 LS6: 0.525" (13.34mm) / 0.551" (13.33mm)

'02-'04 LS6: 0.525" (14.01mm) / 0.547" (13.91mm)

Comments (0)

You don't have permission to comment on this page.

Printable version
 
Anonymous Create an account or Log in