Apparel
CHEVY LT1
Valves Valvetrain Components Pushrods Rods Pistons Crankshafts / Rotating Assemblies

Manley Performance "PRO SERIES" crankshafts designed for the small block direct injected LT1 engine... Manufactured from a premium 4340 steel forging, these cranks feature a stock 3.622" stroke or a increased 4.000" stroke which can turn your 6.2L into 6.8-7.0L depending on your bore. All crankshafts are shipped with a 58 tooth reluctor wheel installed.
  • 4340 material forgings
  • Multi-step heat treatment process and nitrided for added strength
  • Stress relieved, shot-peened, and 100% magnafluxed
  • Micro polished large radius journals (narrowed rod bearings required)
  • Gun drilled mains and lightened rod journals for weight reduction
  • Counterweights fully profiled
Part No. Stroke Minimum
Rod Length
Main Journal
Diameter
Rod Journal
Diameter
Bobweight
(grams)
Total Weight (lbs.)
  LIGHTWEIGHT
194158 3.622" 6.098" 2.559" 2.100" 1850 51-53
194258 4.000" 6.125" 2.559" 2.100" 1820 51-53
  LIGHTWEIGHT WITH LONG SNOUT (DRY SUMP OILING SYSTEMS)
194358 3.622" 6.098" 2.559" 2.100" 1850 51-53
194458 4.000" 6.125" 2.559" 2.100" 1850 51-53
Note: The stock timing crank gear may need to be chamfered to clear the larger radius on the snout of the crankshaft
Note: Manley crankshafts are not intended for use with highly boosted roots style cog belt superchargers



Ordering a Manley LT1 rotating assembly is as easy as 1-2-3...

1. Choose your crankshaft part number based on required reluctor wheel for your vehicle and order the corresponding rod and main bearing part numbers shown.

2. Choose your connecting rod part number.

3. Choose your piston part number based on bore size and desired compression ratio and the corresponding piston ring part number.

Ordering all of the required components for your SB HEMI rotating assembly from Manley will result in extra $ savings. Please contact your Manley representative for more details.

Order P/N 04000 if you require Manley to perform balancing.

CRANKS
  • Lightweight 4340 material forging
  • Multi-step heat treatment process and Nitrided for added strength
  • Stress relieved, shot-peened, and 100% magnafluxed
  • Micro polished large radius journals
  • Gun drilled mains and lightened rod journals for weight reduction
  • Counterweights fully profiled
RODS
  • Lightweight design 4340 material forgings
  • Fully machined, heat treated, stress relieved, shot peened, and 100% magnafluxed
  • Big and small end bores are final honed to a tolerance of ± .0002"
  • Bend and twist is tightly controlled
  • Weight matched to +/- 1.5 grams
  • H-Beam comes standard with low profile 7/16" ARP 8740 bolts providing additional block and oil pan clearance (affix an R suffix for ARP 2000 bolt upgrade)
  • I-Beam comes standard with 7/16" ARP 2000 bolts (affix an R6 suffix for ARP 625+ bolt upgrade)
PISTONS
  • High strength 2618 alloy forgings
  • Exacting ring groove squareness to cylinder wall provides maximum horsepower.
  • Offset wrist pin design
  • Premium Chrome Moly pin included with Standard Series
  • 9310 Alloy pin included with Extreme Duty Series
  • Moly coated skirts

RINGS

  • 1.2 x 1.2 x 3mm
  • Premium steel top rings are optional (affix ST suffix)

BEARINGS

  • Premium Clevite® "H" Series narrowed rod bearings and "H" Series main bearings

Small Block Chevrolet Direct Injected LT1
Lightweight 1850gm. Bobweight 3.622" Stroke Cranks
Crank P/N Extreme Duty Compression Ratio Balance Req. (Y/N)
Reluctor Wheel Piston Part No. Piston Part No. Piston Description RingPart No. 60cc 14051-8 14359-8 14559-8
194158
58 Tooth
6.125" Rod P/N
Description
14051-8 H-Beam
or
14359-8 LW I-Beam
or
14559-8 SW I-Beam
Bearing P/N
Description
30010 Rod
33110H Main
560065C-8 560065CE-8 4.065/-2cc Dome 46016-8 11.7 N* Y Y
560070C-8 560070CE-8 4.070/-2cc Dome 46017-8 11.7 N* Y Y
560165C-8 560165CE-8 4.065/-12cc Dish 46016-8 10.5 N* Y Y
560170C-8 560170CE-8 4.070/-12cc Dish 46017-8 10.5 N* Y Y
 
 
 
 
 
 
 
 

Small Block Chevrolet Direct Injected LT1
Lightweight 1820gm. Bobweight 4.000" Stroke Cranks
Crank P/N Extreme Duty Compression Ratio Balance Req. (Y/N)
Reluctor Wheel Piston Part No. Piston Part No. Piston Description RingPart No. 60cc 14051-8 14359-8 14559-8
194258
58 Tooth
6.125" Rod P/N
Description
14051-8 H-Beam
or
14359-8 LW I-Beam
or
14559-8 SW I-Beam
Bearing P/N
Description
30010 Rod
33110H Main
560265C-8 560265CE-8 4.065/-10cc Dish 46016-8 11.7 N* Y Y
560270C-8 560270CE-8 4.070/-10cc Dish 46017-8 11.7 N* Y Y
560300C-8 560300CE-8 4.125/-10cc Dish 46060-8 12.0 N* Y Y
560305C-8 560305CE-8 4.130/-10cc Dish 46061-8 12.0 N* Y Y
560465C-8 560465CE-8 4.065/-20cc Dish 46016-8 10.5 N* Y Y
560470C-8 560470CE-8 4.070/-20cc Dish 46017-8 10.5 N* Y Y
560500C-8 560500CE-8 4.125/-20cc Dish 46060-8 10.8 N* Y Y
560505C-8 560505CE-8 4.130/-20cc Dish 46061-8 10.8 N* Y Y





*N = Factory balanced to +/- 1% of bobweight
Order part number 04000 for precision balancing to within 5 grams
Note: "LW" = "Lightweight" design rod and "SW" = "Standard Weight" design rod
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