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Sgi Forged 4340 Steel Nitride Crankshaft C3-427a, Fe 428 4.250” Stroker & Kits on 2040-parts.com

US $600.00
Location:

Rowland Heights, California, United States

Rowland Heights, California, United States
Condition:New Brand:SGI Surface Finish:Forged 4340 Steel Nitride Manufacturer Part Number:C3-427A Warranty:No

SGI Forged 4340 Steel Nitride Crankshaft C3-427A, FE 428 4.250” Stroke & Kits 

By choosing a STAR GALAXY INC Crankshaft marked with P/N C3-427A, you’ll receive one of the finest HP crankshafts on the market available today. SGI Crankshafts dominate the industry when it comes to precision CNC’d crankshafts. Utilizing only daily calibrated state of the art CNC equipment, working in unison along with extremely highly qualified master craftsmen, SGI Crankshafts has incorporated all the precision and detail with high production capabilities in a mass array of applications and designs. SGI C3-427 series Crankshafts features: 4340 AQ Chromoly steel non-twist forgings; Multiple stage heat treatments; X-rayed; Magnafluxed and Sonic tested; Completely CNCmachined with a two step micro polishing on the journals; Oil passages are cross drilled; Crankshafts are plasma nitrated to a minimum depth of .060; 3D exclusively designed arrow counterweights and gun drilled mains for 20% less crankcase windage than our competitors; 1 inch lightening holes in all 4 rod throws reduces rotating mass and helps eliminate the need of Mallory when balancing. 

Customer Service: 1-626-839-5700 or visit SGI website site stargalaxyinc.com

 

Part Number

DESCRIPTIONS

Balance

Main Journal

 Rod Journal

 Rods

Weight

Rated HP

Price

  C3-427A

BBF 427, 4.250” Stroke, Chevy Journal

internally

2.7484-2.7492

2.1990-2.2000

6.700”

70 lbs

1200

$600

Each unit is marked with an assigned part number C3-427A, then gets well packed in a stronger carton box with triple layer of walls, at a size of 30” X 7.5” X 7.5”, with a shipping weight of about 75 lbs. Weights and dimensions are for reference only, actual data may vary. Prices are based from California warehouse (CA 91748), and subject to change without prior notice. Check part number and specifications first before ordering. Most orders will be shipped within 24 hours. 

The following chart may help, for reference information only, finds more components connecting to the crankshaft:

Choice A - Assembling Kits AK3-445/455/462 Series of FE 428:  SGI Rotating Kit includes SGI forged 4340 steel crankshaft, SGI forged 4340 steel H or I beam rods with ARP 2000 cap screw bolts, forged aluminum pistons and Moly rings. Special requests may require two weeks to hit your door. All special requests must be prepaid, to insure receipt of your kit(s).

Notes on Forged 2168 High Strength Alloy Pistons: FTP - Flat Top, DTP – Dome Top, RDP - Reverse Dome Top, DIP – Dish Top, C/H - Chamber High, T/V - Top Volume, C/R – Compression.

KIT NUMBER

Crankshaft

SGI Rods

PISTON

BORE

C/H

T/V

COMPRESSION RATIO

PIN

RINGS

PRICE

68cc

72cc

76cc

AK3-445 FTP

C3-427A  4.250

R3-6700 H

14773

30

4.080

1.330

-4.0cc

12.00

11.49

11.03

.990X2.750

3150043

1600

AK3-445 RDP

C3-427A  4.250

R3-6700 H

14785

30

4.080

1.330

-17.5cc

10.46

10.08

9.73

.990X2.750

3150043

1600

AK3-455 FTP

C3-427A  4.250

R3-6700 H

14776

STD

4.130

1.330

-4.0cc

12.23

11.72

11.25

.990X2.750

3150032

1600

AK3-455 RDP

C3-427A  4.250

R3-6700 H

14791

STD

4.130

1.330

-21.1cc

10.32

9.96

9.63

.990X2.750

3050032

1600

AK3-462 FTP

C3-427A  4.250

R3-6700 H

14776

30

4.160

1.330

-4.0cc

12.38

11.85

11.38

.990X2.750

3050032

1600

AK3-462 RDP

C3-427A  4.250

R3-6700 H

14791

30

4.160

1.330

-21.0cc

10.44

10.08

9.74

.990X2.750

3050032

1600

 

Choice B - Balanced Assembling Kits (at $2300): By choosing SGI completely assemblies, spun and balanced by extremely highly qualified master craftsmen, you’ll receive one of the finest stroke kits available today, get a whole kit internally balanced along with main bearings, H rods bearings, damper, and flexplate.

Shipping Cost on kit will be around $130 nationwide.

 

 We accept Visa / Master cards, and PayPal payment. Will call is available for a fee.

 

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