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Speedway Chevy 350 Crankshaft, Two-Piece Main

SAME DAY SHIPPING! Most orders ship within 24 hours.

Free Shipping Free Shipping
Specs
Weight:
50
Sold in Quantity:
Each
Stroke:
3.48
Main Journal Style:
350 mains
Rod Journal Diameter:
2.10"
Rear Main Seal Style:
2-piece
Garage Sale:
No
Speedway Chevy 350 Crankshaft, Two-Piece Main

Click image to enlarge

Details

Reviews

Q & A

What's in the Box

New, hi-tech fatigue resistant 80-60-06 cast steel crank with near forged steel endurance. All journals are ground and polished to exacting tolerances. Superior quality stock replacement crank at a value price.

  • IMCA southern sport mod legal (Drilled only on the first rod throw)
  • Angle oil shot holes 

Customer Reviews

Rated 5 out of 5 by 3 reviewers.
RATING BREAKDOWN
3 reviews
5 Stars
3
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

jk68mod
Verified Purchaser
Missouri

Great product

June 05, 2015
Very good product and better price than others.
Yes, I recommend this product.
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trader mike
Verified Purchaser
van buren ar

southwest speed crankshaft

December 02, 2011
bought this crank for a sbc i was building as a backup motor and didn't want to spend a lot of money, the crank arrived in a plain brown box, as i pulled the crank out of its container i noticed it look and had the same markings as the scat crank i put in my good motor,very good crankshaft.i will run my backup motor the same rpms and the other motor
Yes, I recommend this product.
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Psychomotors
Verified Purchaser
Bonne Terre , Mo.

I would definately buy again.

May 11, 2011
Upon arrival, I opened the package to find a very nice piece of equipment. The machining of the crank was superb and would have no problem in purchasing another.
Pros:
  • A quality piece of work
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

9 questions : 9 answers

1 answers

crank weight you state the crank weight is 50 lbs. is this correct or just an estimate?

hotrod2788
north carolina
March 06, 2015

crank weight you state the crank weight is 50 lbs. is this correct or just an estimate?

Answers

March 06, 2015
EricM
We have a shipping weight listed as 50.8 pounds. That is an estimate and may vary slightly. Keep in mind that cast crankshafts weigh less than forged crankshafts so a standard weight cast crank will be a few pounds lighter than a standard weight forged crank.
1 answers

Weight of this crank?

6pack
March 04, 2015

Weight of this crank?

Answers

March 04, 2015
EricM
This crankshaft weights approximately 51 pounds.
1 answers

Are the oil holes chamfered ?

tyckrider
March 12, 2014

Are the oil holes chamfered ?

Answers

March 14, 2014
EricM
The oil holes have a very small chamfer.
1 answers

will this fit 1979 block

fastfred
Maine, USA
February 04, 2014

will this fit 1979 block

Answers

February 04, 2014
EricM
Yes this crankshaft would work in a 1979 350 Chevy engine.
1 answers

can i supply the total wt. for each rod journal and still get this crank balanced & will the price still be the same?

br549
September 21, 2013

can i supply the total wt. for each rod journal and still get this crank balanced & will the price still be the same?

Answers

September 23, 2013
Jason
If suppling weight for balancing of crank, we need to know piston weight with wrist pin and rings, big end and small end weight of rod with bearings. To balance a crank Speedway charges $149.99. There may be an additional charge if heavey metal is required for balancing.
1 answers

what ballencer and flexplate do you use?

August 26, 2011

what ballencer and flexplate do you use?

Answers

August 30, 2011
John
The standard 350 crankshaft will run the 350 balancer and flexplate designed for internal balance. We strongly suggest balancing before assembly for a vibration free engine. The 383 with the balance and clearance option runs the balance plate and 400 balancer for external balance.
1 answers

can i use stock connecting rods and bearings with this crank?

May 15, 2011

can i use stock connecting rods and bearings with this crank?

Answers

May 17, 2011
Jason
Yes, the "P" series bearing will work best with a cast crank
1 answers

Will this fit in a 1969 block?

Logan
Shelby Township, MI
June 07, 2015

Will this fit in a 1969 block?

Answers

June 08, 2015
Eric
Expert
Yes this will fit in a 1969 block as long as it is a large journal block.
1 answers

Would this crank be ok in a 520hp circle track car? 6800 to 7200 rpm

J
July 29, 2015

Would this crank be ok in a 520hp circle track car? 6800 to 7200 rpm

Answers

July 31, 2015
Zach
Expert
Yes guys use these all the time in applications like that with great sucess
Page 1 of 1

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(Part #91515500)
                        

As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

  • For 2-piece rear main blocks
  • 2.100" rod pin
  • 51 lbs.
  • Straight shot & chamfered oil holes
  • Nitride hardened for superior wear reisistance
  • Lightening holes in all rod throws
  • Large radius on all journals
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  • Designed at SCAT
  • Engineered at SCAT
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Note: If you are going to run 915-15500 in a sprint car motor, you must have the crank flange turned down prior to balancing the crank to allow it to go through the motor plate. 

Item Details

3.48" stroke - 350 mains
Scat 9-10442 Chevy 350 Crankshaft, Cast Steel
(Part #915104420)
                        

Scat's hi-tech, fatigue resistant 80-60-06 cast steel cranks have near forged steel endurance at a value price! Designed to replace stock cranks that have seen better days. Perfect for stock or mildly built engines.

  • For 2-piece rear main blocks
  • Precision ground and micro polished
  • Internally Balance
  • IMCA southern sport mod legal (Drilled only on the first rod throw)
  • Angle oil shot holes 
Clevite P-Series 1969-Up Small Block Chevy Main Bearings
(Part #757M338)
                        

Not to be confused with standard "passenger" car bearings, Clevite's P-Series is their oldest line of premium high performance bearings. These sets are specifically for 302-305-327-350 S/B Chevy "Large Journal" engines built from 1969-Up (with 2.100" rod journal).

  • Use P-Series rod bearings where extremely high RPM’s cause severe rod bore close-in.
  • Use P-Series main bearings where higher eccentricity is desired to narrow bearing contact patterns and to provide increased oiling to rod bearings.

Note: Will not work with 400 c.i. V-8.

P-Series Features (Link)

Clevite Application Chart

Green Plastigauge for Bearing Clearance, .001-.003 Inch
(Part #9151004)
                        Place a piece of this thread on a rod or main journal, torque cap in place, remove cap and by using the included chart, you know what your bearing clearance is. You should have one of each when assembling your engine. 
                    
Manley 190310 Forged Lightweight Small Block Chevy Crankshaft
(Part #505190310)
                        

This forged crankshaft from Manley Performance is great for IMCA RaceSaver and other classes that require a 48-50 pound crankshaft. The 4320 non-twist forging design allows for internal balance.  For Small Block Chevy applications.

Includes:

  • 2 piece rear main seal
  • OEM "appearing"
  • Not drilled on second/third rod throws
  • No knife edge or undercut
  • 48 - 50 lbs total weight 

Specs:

  • 3.480" stroke
  • 5.700" min rod length
  • 2.450" main journal diameter
  • 2.100" rod journal
  • 1800 gram bob weight