Products to Compare (max of 3)
X
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
in
in
  • Expert Tech Support
  • Huge Inventory
  • Fast Shipping
Talk to the Experts. Call 800.979.0122
Shop By
Support
Account
Street
Race
Truck
More...
Chassis and Suspension
Brakes
Steering
Air and Fuel Delivery
Engine
Cooling and Heating
Safety
Wheel and Tire
More...
Select Your Vehicle
All Makes
Year
Make
Model
What Do You Race?
Select Your Race Car
Select Your Vehicle
The Toolbox

When you're ready to get serious about your engine, check out our massive selection of custom rotating assemblies. Our engine rotating kits provide the perfect combination of pistons, connecting rods, and crankshafts to optimize power and durability, without maxing out your budget. We've got the rotating kits for a wide variety of applications from small block Chevys to flathead Fords and everything in between. Take the guesswork out of picking engine components - we'll help you pick out the perfect rotating kit for your ride.

Products
You've Selected:
Selected Filters
Engine Cylinder Block Components Rotating Assemblies
(Clear All)
Select Your Vehicle
See More Filters
Sort by:
Relevance Selected
Relevance Selected Price Low to High Price High to Low
Show:
30 Results
30 Results 60 Results 90 Results
Labor To Side Clearance Rods, Balance Rotating Assembly, 350/377 Kits
Speedway Motors
Part # 91510200

Labor To Side Clearance Rods, Balance Rotating Assembly, 350/377 Kits

$149.99
(4)

350 Chevy Small Block V8, 377 Chevy Small Block V8

Ships Free
Show only Speedway Motors Rotating Assemblies
Compare
Quick View
1939-53 Flathead Ford Rotating Assembly, 286 C.I.
Scat
Part # 915286

1939-53 Flathead Ford Rotating Assembly, 286 C.I.

$1,899.99
(1)
Ships Free

Connecting Rod Type: H-Beam

Piston Style: Flat Top

Stroke: 4.125"

Rod Journal Diameter: 2.00"

Show only Scat Rotating Assemblies
Compare
Quick View
Labor To Side Clearance Rods, Balance Rotating Assembly, 383/400 Kits
Speedway Motors
Part # 91510201

Labor To Side Clearance Rods, Balance Rotating Assembly, 383/400 Kits

$219.99
(1)

383 Chevy Small Block V8, 400 Chevy Small Block V8

Ships Free
Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Machining Labor, 350/383 Chevy Balance & Side Clearance 6 Inch Rods
Speedway Motors
Part # 91510202

Machining Labor, 350/383 Chevy Balance & Side Clearance 6 Inch Rods

$219.99
(2)

350 Chevy Small Block V8, 383 Chevy Small Block V8

Ships Free
Show only Speedway Motors Rotating Assemblies
Compare
Quick View
SB Chevy Rotating Assembly, 350 Flat Top-4 Valve Relief, 5.7 Rod
Speedway Motors
Part # 91510206

SB Chevy Rotating Assembly, 350 Flat Top-4 Valve Relief, 5.7 Rod

$589.99

350 Chevy Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
1939-53 Flathead Ford Rotating Assembly, 274 C.I.
Scat
Part # 915274

1939-53 Flathead Ford Rotating Assembly, 274 C.I.

$1,899.99
(1)
Ships Free

Connecting Rod Type: H-Beam

Piston Style: Flat Top

Stroke: 4.00"

Rod Journal Diameter: 2.00"

Show only Scat Rotating Assemblies
Compare
Quick View
Speedway 429/460 BBF Big Block Ford Stroker Rotating Assembly Kit
Speedway Motors
Part # 915545

Speedway 429/460 BBF Big Block Ford Stroker Rotating Assembly Kit

$1,299.99
(3)

429 Ford Big Block V8, 460 Ford Big Block V8

Ships Free
Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Light Forged SB Chevy Rotating Assem., 350 Flat Top, 6 In Rods
Speedway Motors
Part # 9153010

Light Forged SB Chevy Rotating Assem., 350 Flat Top, 6 In Rods

$2,199.99
(3)

350 Chevy Small Block V8

Ships Free

Piston Material: Forged Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly
Speedway Motors
Part # 9151205

Speedway SBC Small Block Chevy 305 Sprint Car Engine Rotating Assembly

$2,099.99
$2,203.99
(2)

305 Chevy Small Block V8

Ships Free
On Sale
Show only Speedway Motors Rotating Assemblies
Compare
Quick View
1939-53 Flathead Ford Rotating Assembly, 304 C.I.
Scat
Part # 915296

1939-53 Flathead Ford Rotating Assembly, 304 C.I.

$1,899.99
Ships Free

Connecting Rod Type: H-Beam

Piston Style: Flat Top

Stroke: 4.25"

Rod Journal Diameter: 2.00"

Show only Scat Rotating Assemblies
Compare
Quick View
Speedway Small Block Ford 396 Stroker Kits, H-Beam Rods
Speedway Motors
Part # 915397

Speedway Small Block Ford 396 Stroker Kits, H-Beam Rods

$1,299.99

351W Ford Small Block V8, 396 Ford Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.956"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
SB Chevy Rotating Assembly, 350 Flat Top-2 Valve Relief, 6 Rod
Speedway Motors
Part # 91510212

SB Chevy Rotating Assembly, 350 Flat Top-2 Valve Relief, 6 Rod

$599.99
$624.99
(1)

350 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium SB Chevy Rotating Assembly, 350 Flat Top, 5.7 In Rods
Speedway Motors
Part # 91510220

Premium SB Chevy Rotating Assembly, 350 Flat Top, 5.7 In Rods

$749.99
(1)

350 Chevy Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Light Forged SB Chevy Rotating Assem., 350 Flat Top, 5.7 In. Rod
Speedway Motors
Part # 9153005

Light Forged SB Chevy Rotating Assem., 350 Flat Top, 5.7 In. Rod

$2,134.99
(1)

350 Chevy Small Block V8

Ships Free

Piston Material: Forged Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium Small Block Chevy Rotating Assembly, 383 Flat Top, 6 Inch Rods
Speedway Motors
Part # 91510260

Premium Small Block Chevy Rotating Assembly, 383 Flat Top, 6 Inch Rods

$869.99
$899.99
(1)

383 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium Chevy 383 Rotating Assembly, 1-Piece Main, Flat Top, 6.0 Rod
Speedway Motors
Part # 9151026

Premium Chevy 383 Rotating Assembly, 1-Piece Main, Flat Top, 6.0 Rod

$869.99
$874.99

383 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Forged SB Chevy Rotating Assembly, 383 Flat Top, H-Beam, 6 Rod
Speedway Motors
Part # 9151260

Forged SB Chevy Rotating Assembly, 383 Flat Top, H-Beam, 6 Rod

$1,499.99
$1,549.99
(1)

383 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Forged Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium SB Chevy Rotating Assembly, 383 .150 Dome, 6 In Rods
Speedway Motors
Part # 91510265

Premium SB Chevy Rotating Assembly, 383 .150 Dome, 6 In Rods

$899.99
(1)

383 Chevy Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
SB 383 Chevy Rotating Assem., One Piece, Flat Top-2 Valve, 6 In. Rod
Speedway Motors
Part # 9151035

SB 383 Chevy Rotating Assem., One Piece, Flat Top-2 Valve, 6 In. Rod

$674.99
$699.99

383 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Forged S/B Chevy Rotating Assembly, 421 Flat Top, 400 Mains, 6 Rod
Speedway Motors
Part # 9151272

Forged S/B Chevy Rotating Assembly, 421 Flat Top, 400 Mains, 6 Rod

from
$1,399.99
(2)

421 Chevy Small Block V8

Ships Free

Piston Material: Forged Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Light Forged SB Chevy Rotating Assembly, 350 Dome, 6 In Rods
Speedway Motors
Part # 9153020

Light Forged SB Chevy Rotating Assembly, 350 Dome, 6 In Rods

$2,199.99

350 Chevy Small Block V8

Ships Free

Piston Material: Forged Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Forged S/B Chevy Rotating Assy., 434 Flat Top, 400 Main Journal, 6 Rod
Speedway Motors
Part # 9151275

Forged S/B Chevy Rotating Assy., 434 Flat Top, 400 Main Journal, 6 Rod

$1,429.99
$1,430.99

434 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Forged Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium Small Block Chevy Rotating Assembly, 350 Flat Top, 6 Inch Rods
Speedway Motors
Part # 91510230

Premium Small Block Chevy Rotating Assembly, 350 Flat Top, 6 Inch Rods

$839.99
$849.99

350 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium Small Block Ford 347 Stroker Kits
Speedway Motors
Part # 915349

Premium Small Block Ford 347 Stroker Kits

$1,299.99
(1)

302 Ford Small Block V8, 347 Ford Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.400"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
SB Chevy Rotating Assembly, 400 Flat Top-2 Valve Relief, 5.7 Rod
Speedway Motors
Part # 91510219

SB Chevy Rotating Assembly, 400 Flat Top-2 Valve Relief, 5.7 Rod

$599.99

400 Chevy Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium Chevy 383 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod
Speedway Motors
Part # 9151021

Premium Chevy 383 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod

$869.99
$875.99

383 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Street SB Chevy 383 Rotating Assembly, Dish Dome, 5.7 In Rod
Speedway Motors
Part # 91510242

Street SB Chevy 383 Rotating Assembly, Dish Dome, 5.7 In Rod

$779.99
(1)

383 Chevy Small Block V8

Ships Free

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Premium Chevy 350 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod
Speedway Motors
Part # 9151020

Premium Chevy 350 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod

$759.99
$774.99

350 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Hypereutectic Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Cast Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Forged SB Chevy Rotating Assembly, 350 Flat Top, H-Beam, 5.7 Rods
Speedway Motors
Part # 9151220

Forged SB Chevy Rotating Assembly, 350 Flat Top, H-Beam, 5.7 Rods

$1,499.99
$1,549.99

350 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Forged Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.700"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View
Forged SB Chevy Rotating Assembly, 383 Dome, H-Beam, 6 In Rods
Speedway Motors
Part # 9151265

Forged SB Chevy Rotating Assembly, 383 Dome, H-Beam, 6 In Rods

$1,499.99
$1,549.99

383 Chevy Small Block V8

Ships Free
On Sale

Piston Material: Forged Aluminum

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Crankshaft Material: Forged 4340 Steel

Show only Speedway Motors Rotating Assemblies
Compare
Quick View

Refine Results

Filter
Sort
Relevance Selected
Relevance Selected Price Low to High Price High to Low
Filters

Select Your Vehicle

Tell us what vehicle you drive so we can help you find exactly what you're looking for.

Select Your Vehicle
Brand
KRC Power Steering (1)
Scat (4)
Speedway Motors (100)
Price
Discounts
On Sale (45)
Garage Sale (1)
Customer Rating
(14)
& up (17)
& up (18)
& up (19)
& up (19)
Department
Classic Truck (103)
Street Rod (103)
Oval Track (101)
Muscle Car (100)
Drag Racing (92)
T-Bucket (88)
Truck Accessories (43)
Modern Muscle (42)
See More
See Less
Engine Family
Chevy Small Block V8 (93)
Ford Small Block V8 (6)
Ford Flathead V8 (3)
Ford Big Block V8 (1)
Piston Material
Hypereutectic Aluminum (57)
Forged Aluminum (34)
Connecting Rod Type
H-Beam (48)
I-Beam (46)
Connecting Rod Length
6.000" (44)
5.700" (38)
5.400" (4)
5.090" (1)
5.956" (1)
Crankshaft Material
Cast Steel (55)
Forged 4340 Steel (37)
Rear Main Seal Style
2-piece (68)
1-piece (17)

Additional Filters

Don't see what you're looking for? Click below to see more ways to filter your search.

Main Journal Style
350 mains (67)
400 mains (16)
Piston Style
Dome (34)
Flat Top (31)
Dish (16)
Flat Top w/ 2 valve reliefs (10)
Flat Top w/ 4 valve reliefs (2)
Inverted Dome (1)
Dome Height
.150" (11)
.163" (3)
.200" (3)
.100" (3)
.180" (2)
.275" (2)
.465" (2)
.400" (1)
.068" (1)
.218" (1)
.283" (1)
See More
See Less
Piston Diameter
4.155" (9)
4.165" (8)
4.125" (5)
4.145" (5)
4.185" (4)
4.030" (2)
4.040" (2)
4.060" (2)
4.00" (2)
See More
See Less
Piston Ring Style
C (47)
A (32)
E (12)
Piston Weight
406 grams (1)
410 grams (1)
411 grams (1)
415 grams (3)
420 grams (1)
422 grams (1)
425 grams (4)
427 grams (4)
429 grams (1)
430 grams (2)
433 grams (1)
434 grams (2)
435 grams (1)
439 grams (3)
441 grams (1)
444 grams (1)
450 grams (2)
452 grams (1)
460 grams (4)
463 grams (1)
464 grams (1)
465 grams (1)
469 grams (1)
475 grams (1)
476 grams (1)
479 grams (1)
483 grams (1)
485 grams (2)
492 grams (1)
497 grams (1)
499 grams (1)
500 grams (1)
501 grams (1)
505 grams (5)
510 grams (2)
512 grams (2)
514 grams (2)
522 grams (1)
525 grams (2)
526 grams (1)
528 grams (3)
535 grams (5)
541 grams (2)
550 grams (2)
564 grams (1)
580 grams (1)
583 grams (1)
600 grams (1)
605 grams (1)
645 grams (1)
660 grams (2)
670 grams (2)
676 grams (2)
See More
See Less
Wrist Pin Weight
102 grams (24)
132 grams (12)
133 grams (1)
135 grams (1)
143 grams (2)
145 grams (31)
Wrist Pin Diameter
.9272" (88)
.9120" (2)
Stroke
3.48" (36)
3.75" (34)
4.00" (7)
3.875" (5)
3.40" (3)
4.25" (1)
3.00" (1)
4.125" (1)
3.25" (1)
3.85" (1)
3.5" (1)
See More
See Less
Connecting Rod Material
Forged 4340 Steel (61)
Forged 5140 Steel (28)
Connecting Rod Weight
585 grams (4)
588 grams (3)
590 grams (6)
605 grams (8)
620 grams (4)
622 grams (15)
624 grams (1)
629 grams (1)
634 grams (11)
638 grams (16)
646 grams (16)
See More
See Less
Connecting Rod Bolt Diameter
7/16" (45)
3/8" (28)
5/16" (2)
Main Journal Diameter
2.448" (67)
2.650 (13)
2.648 (3)
Rod Journal Diameter
2.10" (85)
2.00" (3)
Bearing Construction
Bi-metal (82)
Bearing Undersize
Standard (88)
Narrowed Bearing
Yes (82)
No (2)
Coated Bearing
No (90)
Sold in Quantity
Kit (94)
Each (2)
Back
Select Your Vehicle
All Makes
Year
Make
Model
Select Your Vehicle
Suggestions
Error
Note
Ok