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

#91510206

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

The cast steel crankshaft will fit a two-piece rear main
I-beam claimer connecting rods are made from 5140 heat treated steel
They are shot peened and magnafluxed

$1,147.99

In Stock

$1,165.38

Save $17.39

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

350 mains Main Journal Style, 3.480" Engine Stroke

The cast steel crankshaft will fit a two-piece rear main
I-beam claimer connecting rods are made from 5140 heat treated steel
They are shot peened and magnafluxed
Pistons feature a T-5 hypereutectic construction
Can be used with press fit or floating wrist pins

Comes as a Kit

View Kit Components

See more details

Key Specs

MFG. Part #	91510206
Brand	Speedway Motors
Connecting Rod Type	I-Beam
Piston Style	Flat Top w/ 4 valve reliefs
Piston Material	Hypereutectic Aluminum

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Speedway Motors 91510206 Details

Speedway introduces rotating assembly engine rebuild kits, with an optional balance job. Includes 2-pc rear main seal cast steel crank, rods and pistons. Cranks are new so they use standard size bearings.

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.

Kits include:

Speedway Cast Steel Crankshaft
- Two-piece rear main
- 80-60-06 cast steel construction
- Fatigue-resistant with near forged steel endurance
- Standard size journals
Speedway 5140 I-Beam Claimer Connecting Rods
- 5140 heat treated steel
- Shot peened and magnafluxed
- 5.7" length
- Press pin
- 646 grams
KB Signature Series Hypereutectic Claimer Pistons
- Coated skirts
- Wrist pin lock rings
- T-5 hypereutectic construction
- Can be used with press fit or floating wrist pins
- C/R 58cc=10.9, 64cc=10.2, 76cc=9.0
  Piston/Pin Weight: 630 g
  Rod Length: 5.7"

Item Details

Flat top, 4 valve relief
Ring style: A

Guides & Documents

Pistons Technical Information (4749901)

Speedway Motors 91510206 Specifications

KEY SPECS
MFG. Part #	91510206
Brand	Speedway Motors
Connecting Rod Type	I-Beam
Piston Style	Flat Top w/ 4 valve reliefs
Piston Material	Hypereutectic Aluminum

GENERAL
Main Journal Style	350 mains
Engine Stroke	3.480"
Connecting Rod Length	5.700"
Connecting Rod Material	Forged 5140 Steel
Connecting Rod Weight	646 grams
Connecting Rod Bolt Diameter	3/8"
Piston Weight	528 grams
Piston Ring Style	A
Crankshaft Material	Cast Steel
Rear Main Seal Style	2-piece
Wrist Pin Diameter	.9272"
Wrist Pin Weight	102 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

Be the first to write a review.

Fitment

1973-1975 Chevy Bel Air

Gen 1 L48 Small Block Chevy

1972 Chevy Blazer

Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy

1973-1974 Chevy Blazer

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1973-1982 Chevy C10

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1983 Chevy C10

2-Piece Rear Main Chevy 350

1984 Chevy C10

Gen 1 L48 Small Block Chevy

1985 Chevy C10

2-Piece Rear Main Chevy 350

1972-1982 Chevy C10 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1983 Chevy C10 Suburban

2-Piece Rear Main Chevy 350

1984 Chevy C10 Suburban

Gen 1 L48 Small Block Chevy

1985 Chevy C10 Suburban

2-Piece Rear Main Chevy 350

1982-1987 Chevy C15

Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1972-1982 Chevy C20

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1984 Chevy C20

Gen 1 L48 Small Block Chevy

1972-1982 Chevy C20 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1984 Chevy C20 Suburban

Gen 1 L82 Small Block Chevy

1972-1982 Chevy C30

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1984 Chevy C30

Gen 1 L46 Small Block Chevy

1983-1987 Chevy C35

Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1973-1982 Chevy Camaro

Gen 1 L48 Small Block Chevy

1973-1982 Chevy Caprice

Gen 1 L48 Small Block Chevy

1983 Chevy Caprice

2-Piece Rear Main Chevy 350

1984 Chevy Caprice

Gen 1 L48 Small Block Chevy

1985 Chevy Caprice

2-Piece Rear Main Chevy 350

1973 Chevy Chevelle

Gen 1 L48 Small Block Chevy

1973-1974 Chevy Corvette

Gen 1 L48 Small Block Chevy

1980 Chevy Corvette

Gen 1 L48 Small Block Chevy

1984 Chevy Corvette

Gen 1 L83 Small Block Chevy

1985 Chevy Corvette

2-Piece Rear Main Chevy 350

1973-1977 Chevy El Camino

Gen 1 L48 Small Block Chevy

1978-1979 Chevy El Camino

2-Piece Rear Main Chevy 350

1983 Chevy El Camino

2-Piece Rear Main Chevy 350

1984 Chevy El Camino

Gen 1 L81 Small Block Chevy

1975-1982 Chevy G10

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1984 Chevy G10

Gen 1 L82 Small Block Chevy

1970 Chevy G10 Van

2-Piece Rear Main Chevy 350

1972-1974 Chevy G10 Van

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1975-1982 Chevy G20

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L82 Small Block Chevy

1972 Chevy G20 Van

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1973-1974 Chevy G20 Van

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L82 Small Block Chevy

1975-1982 Chevy G30

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy

1970 Chevy G30 Van

2-Piece Rear Main Chevy 350

1972-1974 Chevy G30 Van

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy

1973-1982 Chevy Impala

Gen 1 L48 Small Block Chevy

1983 Chevy Impala

2-Piece Rear Main Chevy 350

1985 Chevy Impala

2-Piece Rear Main Chevy 350

1972-1982 Chevy K10

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1972-1982 Chevy K10 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1972-1982 Chevy K20

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1972-1982 Chevy K20 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1972-1974 Chevy K30

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1977-1982 Chevy K30

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1970-1974 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1975-1982 Chevy K5 Blazer

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1983 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1984 Chevy K5 Blazer

Gen 1 L48 Small Block Chevy

1985 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1973-1975 Chevy Laguna

Gen 1 L48 Small Block Chevy

1976 Chevy Laguna

2-Piece Rear Main Chevy 350

1973-1982 Chevy Malibu

Gen 1 L48 Small Block Chevy

1970-1971 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1973-1975 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1976-1977 Chevy Monte Carlo

Gen 1 L48 Small Block Chevy

1982-1983 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1975 Chevy Monza

Gen 1 L48 Small Block Chevy

1973-1974 Chevy Nova

Gen 1 L48 Small Block Chevy

1975 Chevy Nova

2-Piece Rear Main Chevy 350

1976-1979 Chevy Nova

Gen 1 L48 Small Block Chevy

1975-1979 Chevy P30

Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy

1980-1983 Chevy P30

2-Piece Rear Main Chevy 350

1985 Chevy P30

2-Piece Rear Main Chevy 350

1970 Chevy P30 Van

2-Piece Rear Main Chevy 350

1972 Chevy P30 Van

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy

1973-1974 Chevy P30 Van

Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy

1967 GMC C15/C1500 Suburban

2-Piece Rear Main Chevy 350

1980-1984 GMC C1500

2-Piece Rear Main Chevy 350

1980-1986 GMC C1500 Suburban

2-Piece Rear Main Chevy 350

1967-1972 GMC C25/C2500 Pickup

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1972 GMC C25/C2500 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1974 GMC C35/C3500 Pickup

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1978-1987 GMC Caballero

2-Piece Rear Main Chevy 350

1975-1978 GMC G15

2-Piece Rear Main Chevy 350

1967-1974 GMC G15/G1500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G1500

2-Piece Rear Main Chevy 350

1975-1978 GMC G25

2-Piece Rear Main Chevy 350

1967-1974 GMC G25/G2500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G2500

2-Piece Rear Main Chevy 350

1975-1978 GMC G35

2-Piece Rear Main Chevy 350

1967 GMC G35/G3500 Van

2-Piece Rear Main Chevy 350

1970-1974 GMC G35/G3500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G3500

2-Piece Rear Main Chevy 350

1974-1977 GMC Jimmy

2-Piece Rear Main Chevy 350

1983-1984 GMC Jimmy

2-Piece Rear Main Chevy 350

1975-1978 GMC K15

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1975-1978 GMC K15 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1974 GMC K15/K1500 Pickup

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1974 GMC K15/K1500 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1979-1984 GMC K1500

2-Piece Rear Main Chevy 350

1979-1980 GMC K1500 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1975-1978 GMC K25

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1975-1978 GMC K25 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1974 GMC K25/K2500 Pickup

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1974 GMC K25/K2500 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1979-1984 GMC K2500

2-Piece Rear Main Chevy 350

1979-1986 GMC K2500 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1994-1999 GMC K2500 Suburban

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1967-1974 GMC K35/K3500 Pickup

Gen 1 L46 Small Block Chevy
Gen 1 L48 Small Block Chevy
Gen 1 L65 Small Block Chevy
Gen 1 L81 Small Block Chevy
Gen 1 L82 Small Block Chevy

1973-1977 GMC Sprint

Gen 1 LM1 Small Block Chevy

1967 GMC Suburban

Gen 1 L46 Small Block Chevy

1987-1991 GMC V1500 Suburban

350 Chevy Small Block V8

1987 GMC V2500

350 Chevy Small Block V8

1987-1991 GMC V2500 Suburban

350 Chevy Small Block V8

1987-1991 GMC V3500

350 Chevy Small Block V8