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#9151021
Premium Chevy 383 Rotating Assembly, 1-Piece Main, Flat Top, 5.7 Rod
- Fits 350/383 Chevy Small Block V8
- Includes cast steel crank, Keith Black Hypereutectic pistons, and Speedway 4340 full floating H-beam rods with ARP bolts
- One-piece rear main seal
$1,545.99
/kit
On Backorder
$1,569.20
Save $23.21
This part is Backordered. We currently do not have an estimate when this item will ship.
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Product Summary
350 mains Main Journal Style, 3.750" Engine Stroke
- Fits 350/383 Chevy Small Block V8
- Includes cast steel crank, Keith Black Hypereutectic pistons, and Speedway 4340 full floating H-beam rods with ARP bolts
- One-piece rear main seal
- Hypereutectic aluminum piston material
- Forged 4340 steel connecting rod
Comes as a Kit
View Kit Components
Key Specs
| MFG. Part # | 9151021 |
| Brand | Speedway Motors |
| Connecting Rod Type | H-Beam |
| Piston Style | Flat Top |
| Piston Material | Hypereutectic Aluminum |
Need To Know
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Speedway Motors 9151021 Details
These rotating assembly engine rebuild kits feature a new one piece rear main cast steel crank with standard size journals, Keith Black Hyperuetectic piston set, and Speedway 4340 full floating H-beam rods with ARP bolts.
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.
Item Details
Flat top, 650 g
C/R 58cc=11.9, 64cc=10.9, 76cc=9.6
Piston/Pin Weight: 650 g
Rod Length: 5.7", Ring Style: A
Kits include:
- Scat Cast Steel Crankshaft
- One-piece rear main
- 80-60-06 cast steel construction
- Fatigue-resistant with near forged steel endurance
- Standard size journals
- Speedway 4340 H-beam Connecting Rods w/ ARP bolts
- Full floating pin in silicon bronze bushing
- Precision bolt bushings to positively locate cap
- 5.7 " (622 grams) or 6.0 " (634 grams) lengths
- Weight matched set of 8 rods
- Keith Black Signature Series Hypereutectic Pistons
- T-5 heat treated aluminum construction
- Super stiff design for maximum ring seal
- 4.000 " bore pistons available in .030, .040, or .060 sizes
- King HP Series Main and Rod Bearings
- 0.015 " thick top layer for superior macro particle embedability and conformability
- 40 Vickers hardness to resist overlay migration and extrusion
- 450°F heat threshold for superior protection against friction and overheating
- Mains are 3/4 grooved for improved oiling to the rod journals
- Bi-metal aluminum silicon alloy featuring fine micro-bore finish
Kits include:
- (1) Scat 935050L 383 Chevy Cast Steel Crankshaft, 1-Piece Main, 5.7 Rod
- (1) Small Block Chevy 5.7 H-Beam Connecting Rods, 4340 Steel, 7/16
- (1) King HP Series Chevy 350/400 Large Journal Engine Rod Bearings
- (1) King MB 557HP HP Series Chevy 350 Large Journal Main Bearings
- (1) Keith Black Flat Top 5.7 Rod Chevy 383 Hypereutectic Pistons
Speedway Motors 9151021 Specifications
Speedway Motors 9151021 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 9151021 |
| Brand | Speedway Motors |
| Connecting Rod Type | H-Beam |
| Piston Style | Flat Top |
| Piston Material | Hypereutectic Aluminum |
| GENERAL | |
| Main Journal Style | 350 mains |
| Engine Stroke | 3.750" |
| Connecting Rod Length | 5.700" |
| Connecting Rod Material | Forged 4340 Steel |
| Connecting Rod Weight | 622 grams |
| Connecting Rod Bolt Diameter | 7/16" |
| Piston Weight | 505 grams |
| Piston Ring Style | A |
| Crankshaft Material | Cast Steel |
| Rear Main Seal Style | 1-piece |
| Wrist Pin Diameter | .9272" |
| Wrist Pin Weight | 145 grams |
| Main Journal Diameter | 2.448" |
| Rod Journal Diameter | 2.10" |
| Bearing Construction | Bi-metal |
| Bearing Undersize | Standard |
| Narrowed Bearing | Yes |
| Coated Bearing | No |
| Sold in Quantity | Kit |
Ratings & Reviews
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Ratings & Reviews
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Excellent deal for a street/strip car
5.0
a year ago
Scott
Greenfield, IN
Verified
The entire assembly was quality parts and bearings. However, this is an externally balanced rotating assembly so you will need the appropriate balancer and flywheel.
Would Recommend
Showing 1 of 1 reviews
Questions & Answers
Questions & Answers
2 Questions • 3 Answers
Is this a balanced assembly?
by Nancy the newbee
• 3 years ago
2 answers
View Answers
Do the rods and pistons come already assembled or will I have to get that done?
by Alanj
• 6 years ago
1 answer
View Answer
2 of 2 questions shown
Fitment
Fitment
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1990-1992 Cadillac Fleetwood
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1993-1996 Cadillac Fleetwood
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1987-1994 Chevy Blazer
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1986 Chevy C10
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1986 Chevy C10 Suburban
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1988 Chevy C15
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1988-1995 Chevy C1500
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1996-1999 Chevy C1500
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Vortec L31 Small Block Chevy
1992-1995 Chevy C1500 Suburban
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1996-1999 Chevy C1500 Suburban
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1986-1987 Chevy C20
Gen 1 L05 Small Block Chevy
1986 Chevy C20 Suburban
Gen 1 L05 Small Block Chevy
1988-1995 Chevy C2500
Gen 1 L05 Small Block Chevy
1996-1999 Chevy C2500
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Vortec L31 Small Block Chevy
1992-1995 Chevy C2500 Suburban
Gen 1 L05 Small Block Chevy
1996-1999 Chevy C2500 Suburban
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1986 Chevy C30
Gen 1 L05 Small Block Chevy
1988-1995 Chevy C35
Gen 1 L05 Small Block Chevy
1996-1999 Chevy C35
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1988-1995 Chevy C3500
Gen 1 L05 Small Block Chevy
1996-1999 Chevy C3500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1987-1991 Chevy Camaro
Gen 1 L98 Small Block Chevy
1992 Chevy Camaro
Gen 1 L98 Small Block Chevy
Gen 2 LT1 Small Block Chevy
1993-1995 Chevy Camaro
Gen 2 LT1 Small Block Chevy
1996-1999 Chevy Camaro
Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy
1986-1993 Chevy Caprice
Gen 1 L05 Small Block Chevy
1994-1995 Chevy Caprice
Gen 2 LT1 Small Block Chevy
1996 Chevy Caprice
Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy
1986-1991 Chevy Corvette
Gen 1 L98 Small Block Chevy
1992-1995 Chevy Corvette
Gen 2 LT1 Small Block Chevy
1996 Chevy Corvette
Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy
1996-1999 Chevy Express 1500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1996 Chevy Express 2500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1997 Chevy Express 2500
Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy
1998-1999 Chevy Express 2500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1996-1999 Chevy Express 3500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1986-1993 Chevy G10
Gen 1 L05 Small Block Chevy
1986-1995 Chevy G20
Gen 1 L05 Small Block Chevy
1986-1995 Chevy G30
Gen 1 L05 Small Block Chevy
1996 Chevy G30
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1994-1995 Chevy Impala
Gen 2 LT1 Small Block Chevy
1996 Chevy Impala
Gen 2 LT1 Small Block Chevy
Vortec L31 Small Block Chevy
1986 Chevy K10
Gen 1 L05 Small Block Chevy
1986 Chevy K10 Suburban
Gen 1 L05 Small Block Chevy
1988-1995 Chevy K1500
Gen 1 L05 Small Block Chevy
1996-1999 Chevy K1500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1992-1995 Chevy K1500 Suburban
Gen 1 L05 Small Block Chevy
1996-1999 Chevy K1500 Suburban
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1986 Chevy K20
Gen 1 L05 Small Block Chevy
1986 Chevy K20 Suburban
Gen 1 L05 Small Block Chevy
1988-1995 Chevy K2500
Gen 1 L05 Small Block Chevy
1996-1999 Chevy K2500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1992-1995 Chevy K2500 Suburban
Gen 1 L05 Small Block Chevy
1996-1999 Chevy K2500 Suburban
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1986 Chevy K30
Gen 1 L05 Small Block Chevy
1988-1995 Chevy K3500
Gen 1 L05 Small Block Chevy
1996-1999 Chevy K3500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1986 Chevy K5 Blazer
Gen 1 L05 Small Block Chevy
1986-1995 Chevy P30
Gen 1 L05 Small Block Chevy
1996-1999 Chevy P30
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1987 Chevy R10
Gen 1 L05 Small Block Chevy
1987-1988 Chevy R10 Suburban
Gen 1 L05 Small Block Chevy
1989-1991 Chevy R1500 Suburban
Gen 1 L05 Small Block Chevy
1987-1988 Chevy R20
Gen 1 L05 Small Block Chevy
1987-1988 Chevy R20 Suburban
Gen 1 L05 Small Block Chevy
1995 Chevy R25
Gen 1 L05 Small Block Chevy
1996-1999 Chevy R25
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1989 Chevy R2500
Gen 1 L05 Small Block Chevy
1989-1991 Chevy R2500 Suburban
Gen 1 L05 Small Block Chevy
1987-1988 Chevy R30
Gen 1 L05 Small Block Chevy
1989-1991 Chevy R3500
Gen 1 L05 Small Block Chevy
1995 Chevy Silverado
Gen 1 L05 Small Block Chevy
1996-1999 Chevy Silverado
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1987-1994 Chevy Suburban
Gen 1 L05 Small Block Chevy
1995 Chevy Suburban 1500
Gen 1 L05 Small Block Chevy
1996-1999 Chevy Suburban 1500
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1995 Chevy Tahoe
Gen 1 L05 Small Block Chevy
1996-1999 Chevy Tahoe
Gen 1 L05 Small Block Chevy
Vortec L31 Small Block Chevy
1987 Chevy V10
Gen 1 L05 Small Block Chevy
1987-1988 Chevy V10 Suburban
Gen 1 L05 Small Block Chevy
1989-1991 Chevy V1500 Suburban
Gen 1 L05 Small Block Chevy
1987 Chevy V20
Gen 1 L05 Small Block Chevy
1987-1988 Chevy V20 Suburban
Gen 1 L05 Small Block Chevy
1989-1991 Chevy V2500 Suburban
Gen 1 L05 Small Block Chevy
1987-1988 Chevy V30
Gen 1 L05 Small Block Chevy
1989-1991 Chevy V3500
Gen 1 L05 Small Block Chevy
1998-1999 GMC C1500
Vortec L31 Small Block Chevy
1992-1999 GMC C1500 Suburban
Vortec L31 Small Block Chevy
1987-1995 GMC G1500
Gen 1 L05 Small Block Chevy
1987-1995 GMC G2500
Gen 1 L05 Small Block Chevy
1987-1994 GMC G3500
Gen 1 L05 Small Block Chevy
1995-1996 GMC G3500
Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy
1986 GMC Jimmy
Gen 1 L05 Small Block Chevy
1987 GMC Jimmy
Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy
1988-1990 GMC Jimmy
Gen 1 L05 Small Block Chevy
1998-1999 GMC K1500
Vortec L31 Small Block Chevy
1981-1986 GMC K1500 Suburban
Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy
1992-1999 GMC K1500 Suburban
Vortec L31 Small Block Chevy
1986 GMC K2500
Gen 1 L05 Small Block Chevy
1996-2000 GMC K2500
Vortec L31 Small Block Chevy
1992-1993 GMC K2500 Suburban
Gen 1 L05 Small Block Chevy
1987 GMC R1500 Suburban
Vortec L31 Small Block Chevy
1988-1991 GMC R1500 Suburban
Gen 1 L98 Small Block Chevy
1996-2000 GMC Savana 1500
Vortec L31 Small Block Chevy
1987-1991 GMC V1500 Suburban
Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy
1987 GMC V2500
Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy
1987-1991 GMC V2500 Suburban
Gen 1 L05 Small Block Chevy
Gen 1 L98 Small Block Chevy
1992-2011 GMC Yukon
Vortec L31 Small Block Chevy