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Home > Race Parts > Engine Parts - Chevy > Rotating Assemblies

FORGED ROTATING ASSEMBLIES

Speedway introduces forged rotating assemblies, with an optional balance job. Includes new crank, rods and pistons. Cranks are new so they use standard size bearings.
  • New 4340 forged steel crank-standard size journals
  • Keith Black forged pistons
  • Speedway 4340 full floating H-beam rods with ARP bolts.
NOTE: 350 and 383 assemblies available with piston oversize of .030, .040 and .060. YOU MUST SPECIFY THE PISTON OVERSIZE IN THE COMMENTS SECTION WHEN YOU CHECK OUT.

All balancing is done with our state-of-the-art "hines" balancer by race mechanics with over 30 years of experience!

A kit purchased with the optional balance job will ship in 24-48 hours.

NOTE: Piston rings are not included and must be purchased separately.

Forged Rotating Assemblies
View Larger
Tech Tip

Application

If you are going to run this crank 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 #
Description
Units
Price 
   
Qty
9151220
ROT. ASSEMBLY - 350 FLAT TOP 5.7" ROD
Ring style C
KT $1259.99  

9151230
ROT. ASSEMBLY - 350 FLAT TOP 6" ROD
Ring style C
KT $1299.99  

9151235
ROT. ASSEMBLY - 350 .150" DOME 6" ROD
Ring style C
KT $1329.99  

9151250
ROT. ASSEMBLY - 383 FLAT TOP 5.7" ROD
Ring style C
KT $1259.99  

9151255
ROT. ASSEMBLY - 383 .100" DOME 5.7" ROD
Ring style C
KT $1299.99  

9151260
ROT. ASSEMBLY - 383 FLAT TOP 6" ROD
Ring style C
KT $1299.99  

9151265
ROT. ASSEMBLY - 383 .150" DOME 6" ROD
Ring style C
KT $1329.99  

91510200
Side Clearance Rods & Balance Rotating Assembly
350/377 kit - Please allow 24-48 hrs for a kit to ship w/ this labor option.
KT $149.99  

9151270-030
ROT. ASSEMBLY - 350 FLAT TOP 6.0" ROD, 030
Ring style C
EA $1399.99  

9151270-040
ROT. ASSEMBLY - 350 FLAT TOP 6.0" ROD, 040
Ring style C
EA $1399.99  

9151275-030
ROT. ASSEMBLY - 400 FLAT TOP 6.0" RODS, 030
Ring style C
EA $1399.99  

9151275-040
ROT. ASSEMBLY - 400 FLAT TOP 6.0" RODS, 040
Ring style C
EA $1399.99  

9151280-030
ROT. ASSEMBLY - 350 DOME 6.0" RODS, 030
Ring style C
EA $1399.99  

9151280-040
ROT. ASSEMBLY - 350 DOME 6.0" RODS, 040
Ring style C
EA $1399.99  

9151285-030
ROT. ASSEMBLY - 400 DOME 6.0" RODS, 030
Ring style C
EA $1399.99  

9151285-040
ROT. ASSEMBLY - 400 DOME 6.0" RODS, 040
Ring style C
EA $1399.99  

 

Some parts are not legal for sale or use in California on any pollution controlled motor vehicles.

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Speedway Motors, Inc. | 340 Victory Lane | Lincoln, NE 68528 | 1.800.979.0122