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#550919
Header Bolts, 3/8-16 x 3/4 Inch, Set/16
- Heat-treated steel header bolts
- Zinc-plated for rust and corrosion prevention
- Fits headers on Chevy 396-454, Chrysler 426 Hemi, Ford 289-351W, or Ford 429-460.
$13.99
/set
In Stock
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Product Summary
1.05" Overall Length, 0.75" Under Head Length, Steel
- Heat-treated steel header bolts
- Zinc-plated for rust and corrosion prevention
- Fits headers on Chevy 396-454, Chrysler 426 Hemi, Ford 289-351W, or Ford 429-460.
- Features 3/8"-16 x 3/4" threads
- Set of 16 bolts
Need To Know
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855.313.9176Quick and Easy Returns
Return PolicySpeedway Motors 550919 Details
Speedway Motors 550919 Details
These heat-treated steel header bolts are zinc plated and have 3/8"-16 x 3/4" threads. They are perfect for use with headers on big block Chevy 396-454, Chrysler 426 Hemi, small block Ford 289-351W, or big block Ford 429-460.
Set of 16.
Speedway Motors 550919 Specifications
Speedway Motors 550919 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 550919 |
| Brand | Speedway Motors |
| GENERAL | |
| Overall Length | 1.05" |
| Under Head Length | 0.75" |
| Thread Pitch | 3/8"-16 |
| Wrench Type | Hex |
| Material Type | Steel |
| Finish | Zinc Plated |
| Sold in Quantity | Set |
| Notes | Set of 16 bolts. |
Ratings & Reviews
5
11 Reviews
Consistently praised for their quality and practicality, our header bolts have proved superior in usability and fit. Many customers reported that they stay tightly in place, even under challenging conditions. The bolts' capacity for tight clearances is also highlighted, along with their perfect fit. Their solid construction and nice finish have captured positive attention as well. Compared to competitors' options, many found they were unavailable or didn't match the same quality. Overall, these bolts deliver live up to customer expectations and are a great value.
Ratings & Reviews
5
11 Reviews
Consistently praised for their quality and practicality, our header bolts have proved superior in usability and fit. Many customers reported that they stay tightly in place, even under challenging conditions. The bolts' capacity for tight clearances is also highlighted, along with their perfect fit. Their solid construction and nice finish have captured positive attention as well. Compared to competitors' options, many found they were unavailable or didn't match the same quality. Overall, these bolts deliver live up to customer expectations and are a great value.
5
11 reviews
5
11
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Awesome.
5.0
2 years ago
Keaten
Kingsport Tn
Verified
They are what they are. Do the job and go in easy.
Would Recommend
Sbf header bolts
5.0
2 years ago
Mike
NY
Worked perfectly for bolts on my custom headers for my Ford 289
Would Recommend
Good fasteners
5.0
2 years ago
Thrashinator
Brooklyn, WI
Verified
Had problems with other header bolts loosening up and falling out on the track. Hopefully, these stay tight.
Would Recommend
Good product
5.0
2 years ago
Menace
North Dakota
Verified
Work perfect for tight clearances
Would Recommend
Very good product
5.0
6 years ago
Sugarbear
Inola OKLAHOMA
Verified
It worked as described
Would Recommend
Great value
5.0
6 years ago
Rat Rod Relics
Saginaw MI
Verified
Great price
Would Recommend
Yes
5.0
7 years ago
Al
Marshall Illinois
Verified
Fit perfectly no issues
Would Recommend
great product
5.0
8 years ago
blower bill
tucson
Verified
the header bolts are of a great quality
Would Recommend
Ford header bolt
5.0
8 years ago
Richard
Montrose Co
Verified
Couldn't find set for ford locally
Would Recommend
nice
5.0
10 years ago
bpawl
Aurora, tx
Verified
nice finish
Would Recommend
Showing 10 of 11 reviews
Questions & Answers
Questions & Answers
1 Question • 1 Answer
Hi, do these header bolts have a 3/8" or 7/16" hex head size? Regards Pauly
by Paul
• 6 years ago
1 answer
View Answer
1 of 1 questions shown
Fitment
Fitment
1964 AC Shelby Cobra
Ford 289
1968-1973 AC Shelby Cobra
Ford 289
1965 Chevy Bel Air
396 Chevy Big Block V8
1966-1969 Chevy Bel Air
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Bel Air
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy Bel Air
454 Chevy Big Block V8
1965 Chevy Biscayne
396 Chevy Big Block V8
1966-1969 Chevy Biscayne
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Biscayne
402 Chevy Big Block V8
454 Chevy Big Block V8
1969 Chevy Brookwood
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Brookwood
402 Chevy Big Block V8
454 Chevy Big Block V8
1969 Chevy C10
396 Chevy Big Block V8
1970-1972 Chevy C10
402 Chevy Big Block V8
1973-1979 Chevy C10
454 Chevy Big Block V8
1968-1969 Chevy C10 Suburban
396 Chevy Big Block V8
1970-1972 Chevy C10 Suburban
402 Chevy Big Block V8
1973-1979 Chevy C10 Suburban
454 Chevy Big Block V8
1988 Chevy C15
454 Chevy Big Block V8
1990 Chevy C1500
454 Chevy Big Block V8
1991 Chevy C1500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5
1992-1993 Chevy C1500
454 Chevy Big Block V8
1968-1969 Chevy C20
396 Chevy Big Block V8
1970-1972 Chevy C20
402 Chevy Big Block V8
1973-1987 Chevy C20
454 Chevy Big Block V8
1968-1969 Chevy C20 Suburban
396 Chevy Big Block V8
1970-1972 Chevy C20 Suburban
402 Chevy Big Block V8
1973-1986 Chevy C20 Suburban
454 Chevy Big Block V8
1991 Chevy C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 Chevy C2500
454 Chevy Big Block V8
1996-1997 Chevy C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1992-1995 Chevy C2500 Suburban
454 Chevy Big Block V8
1996-1997 Chevy C2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1968-1969 Chevy C30
396 Chevy Big Block V8
1970-1972 Chevy C30
402 Chevy Big Block V8
1973-1986 Chevy C30
454 Chevy Big Block V8
1988-1990 Chevy C3500
454 Chevy Big Block V8
1991 Chevy C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 Chevy C3500
454 Chevy Big Block V8
1996-1997 Chevy C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1967 Chevy Camaro
Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78
1968-1969 Chevy Camaro
Chevy Big Block V8 Mark IV 396 L34
Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78
427 Chevy Big Block V8
1970-1972 Chevy Camaro
402 Chevy Big Block V8
1966-1969 Chevy Caprice
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Caprice
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1976 Chevy Caprice
454 Chevy Big Block V8
1965-1969 Chevy Chevelle
396 Chevy Big Block V8
1970-1972 Chevy Chevelle
402 Chevy Big Block V8
454 Chevy Big Block V8
1973 Chevy Chevelle
454 Chevy Big Block V8
1968 Chevy Chevy II
396 Chevy Big Block V8
1965 Chevy Corvette
396 Chevy Big Block V8
1966-1969 Chevy Corvette
427 Chevy Big Block V8
1970-1974 Chevy Corvette
454 Chevy Big Block V8
1966-1969 Chevy El Camino
396 Chevy Big Block V8
1970-1972 Chevy El Camino
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy El Camino
454 Chevy Big Block V8
1969 Chevy Estate
396 Chevy Big Block V8
427 Chevy Big Block V8
1970 Chevy Estate
402 Chevy Big Block V8
454 Chevy Big Block V8
1996-2000 Chevy Express 2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1996-2000 Chevy Express 3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1988-1990 Chevy G30
454 Chevy Big Block V8
1991 Chevy G30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 Chevy G30
454 Chevy Big Block V8
1996 Chevy G30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1965 Chevy Impala
396 Chevy Big Block V8
1966-1969 Chevy Impala
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Impala
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1976 Chevy Impala
454 Chevy Big Block V8
1969 Chevy K10
396 Chevy Big Block V8
1970-1972 Chevy K10
402 Chevy Big Block V8
1973-1974 Chevy K10
454 Chevy Big Block V8
1968-1969 Chevy K10 Suburban
396 Chevy Big Block V8
1970-1972 Chevy K10 Suburban
402 Chevy Big Block V8
1973-1974 Chevy K10 Suburban
454 Chevy Big Block V8
1968-1969 Chevy K20
396 Chevy Big Block V8
1970-1972 Chevy K20
402 Chevy Big Block V8
1973-1974 Chevy K20
454 Chevy Big Block V8
1968-1969 Chevy K20 Suburban
396 Chevy Big Block V8
1970-1972 Chevy K20 Suburban
402 Chevy Big Block V8
1973-1974 Chevy K20 Suburban
454 Chevy Big Block V8
1985 Chevy K20 Suburban
454 Chevy Big Block V8
1991 Chevy K2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 Chevy K2500
454 Chevy Big Block V8
1996-1997 Chevy K2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1992-1995 Chevy K2500 Suburban
454 Chevy Big Block V8
1996-1997 Chevy K2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1968-1969 Chevy K30
396 Chevy Big Block V8
1970-1972 Chevy K30
402 Chevy Big Block V8
1977-1986 Chevy K30
454 Chevy Big Block V8
1988-1990 Chevy K3500
454 Chevy Big Block V8
1991 Chevy K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 Chevy K3500
454 Chevy Big Block V8
1996-1997 Chevy K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1969 Chevy Kingswood
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Kingswood
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy Laguna
454 Chevy Big Block V8
1965-1967 Chevy Malibu
396 Chevy Big Block V8
1973-1975 Chevy Malibu
454 Chevy Big Block V8
1970-1972 Chevy Monte Carlo
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy Monte Carlo
454 Chevy Big Block V8
1969 Chevy Nova
396 Chevy Big Block V8
1970 Chevy Nova
402 Chevy Big Block V8
1975-1990 Chevy P30
454 Chevy Big Block V8
1991 Chevy P30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5
1992-1995 Chevy P30
454 Chevy Big Block V8
1996-1997 Chevy P30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1972 Chevy P30 Van
402 Chevy Big Block V8
1973-1974 Chevy P30 Van
454 Chevy Big Block V8
1987-1988 Chevy R20
454 Chevy Big Block V8
1987-1988 Chevy R20 Suburban
454 Chevy Big Block V8
1989 Chevy R2500
454 Chevy Big Block V8
1989-1990 Chevy R2500 Suburban
454 Chevy Big Block V8
1991 Chevy R2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1987-1988 Chevy R30
454 Chevy Big Block V8
1989-1990 Chevy R3500
454 Chevy Big Block V8
1991 Chevy R3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1969 Chevy Townsman
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Townsman
402 Chevy Big Block V8
454 Chevy Big Block V8
1987-1988 Chevy V20 Suburban
454 Chevy Big Block V8
1990 Chevy V2500 Suburban
454 Chevy Big Block V8
1987-1988 Chevy V30
454 Chevy Big Block V8
1989-1990 Chevy V3500
454 Chevy Big Block V8
1991 Chevy V3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1967 DeTomaso Mangusta
Ford 289
1970-1971 Dodge Challenger
426 Hemi
1966-1971 Dodge Charger
426 Hemi
1966-1971 Dodge Coronet
426 Hemi
1963 Ford 300
Ford 289
1966-1968 Ford Bronco
Ford 289
1963-1967 Ford Club Wagon
Ford 289
1963-1968 Ford Country Sedan
Ford 289
1969-1973 Ford Country Sedan
429 Ford 385 Series Big Block V8
1963-1968 Ford Country Squire
Ford 289
1969-1973 Ford Country Squire
429 Ford 385 Series Big Block V8
1964-1968 Ford Custom
Ford 289
1969-1972 Ford Custom
429 Ford 385 Series Big Block V8
1964-1968 Ford Custom 500
Ford 289
1969-1973 Ford Custom 500
429 Ford 385 Series Big Block V8
1963-1968 Ford Fairlane
Ford 289
1970 Ford Fairlane
429 Ford 385 Series Big Block V8
1964-1968 Ford Falcon
Ford 289
1970 Ford Falcon
429 Ford 385 Series Big Block V8
1964-1965 Ford Falcon Sedan Delivery
Ford 289
1963 Ford Ford 300
Ford 289
1963-1967 Ford Galaxie
Ford 289
1963-1967 Ford Galaxie 500
Ford 289
1969-1973 Ford Galaxie 500
429 Ford 385 Series Big Block V8
1972-1973 Ford Gran Torino
429 Ford 385 Series Big Block V8
1964-1969 Ford GT40
Ford 289
1965-1968 Ford LTD
Ford 289
1969-1973 Ford LTD
429 Ford 385 Series Big Block V8
1964-1968 Ford Mustang
Ford 289
1969-1971 Ford Mustang
429 Ford 385 Series Big Block V8
1963-1968 Ford Ranch Wagon
Ford 289
1969-1973 Ford Ranch Wagon
429 Ford 385 Series Big Block V8
1960-1961 Ford Ranchero
Ford 289
1965-1968 Ford Ranchero
Ford 289
1970-1973 Ford Ranchero
429 Ford 385 Series Big Block V8
1964 Ford Sprint
Ford 289
1968-1973 Ford Thunderbird
429 Ford 385 Series Big Block V8
1968 Ford Torino
Ford 289
1970-1973 Ford Torino
429 Ford 385 Series Big Block V8
1975-1978 GMC C15
454 Chevy Big Block V8
1975-1978 GMC C15 Suburban
454 Chevy Big Block V8
1973-1974 GMC C15/C1500 Pickup
454 Chevy Big Block V8
1973-1974 GMC C15/C1500 Suburban
454 Chevy Big Block V8
1979 GMC C1500
454 Chevy Big Block V8
1979 GMC C1500 Suburban
454 Chevy Big Block V8
1975-1978 GMC C25
454 Chevy Big Block V8
1975-1978 GMC C25 Suburban
454 Chevy Big Block V8
1967-1970 GMC C25/C2500 Pickup
396 Chevy Big Block V8
1971-1972 GMC C25/C2500 Pickup
402 Chevy Big Block V8
1973-1974 GMC C25/C2500 Pickup
454 Chevy Big Block V8
1967-1970 GMC C25/C2500 Suburban
396 Chevy Big Block V8
1971-1972 GMC C25/C2500 Suburban
402 Chevy Big Block V8
1973-1974 GMC C25/C2500 Suburban
454 Chevy Big Block V8
1979-1986 GMC C2500
454 Chevy Big Block V8
1988-1990 GMC C2500
454 Chevy Big Block V8
1991 GMC C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 GMC C2500
454 Chevy Big Block V8
1996-2000 GMC C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1979-1986 GMC C2500 Suburban
454 Chevy Big Block V8
1992-1995 GMC C2500 Suburban
454 Chevy Big Block V8
1996-1999 GMC C2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1975-1978 GMC C35
454 Chevy Big Block V8
1967-1970 GMC C35/C3500 Pickup
396 Chevy Big Block V8
1971-1972 GMC C35/C3500 Pickup
402 Chevy Big Block V8
1979-1986 GMC C3500
454 Chevy Big Block V8
1988-1990 GMC C3500
454 Chevy Big Block V8
1991 GMC C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 GMC C3500
454 Chevy Big Block V8
1996-2000 GMC C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1967-1970 GMC K25/K2500 Pickup
396 Chevy Big Block V8
1971-1972 GMC K25/K2500 Pickup
402 Chevy Big Block V8
1967-1970 GMC K25/K2500 Suburban
396 Chevy Big Block V8
1971-1972 GMC K25/K2500 Suburban
402 Chevy Big Block V8
1994-1999 GMC K2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1977-1978 GMC K35
454 Chevy Big Block V8
1967-1970 GMC K35/K3500 Pickup
396 Chevy Big Block V8
1971-1972 GMC K35/K3500 Pickup
402 Chevy Big Block V8
1979-1986 GMC K3500
454 Chevy Big Block V8
1988-1990 GMC K3500
454 Chevy Big Block V8
1991 GMC K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1992-1995 GMC K3500
454 Chevy Big Block V8
1996-2000 GMC K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1987-1989 GMC R2500
454 Chevy Big Block V8
1987-1990 GMC R2500 Suburban
454 Chevy Big Block V8
1991 GMC R2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1987-1990 GMC R3500
454 Chevy Big Block V8
1991 GMC R3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 L19
1996-2000 GMC Savana 2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1996-2000 GMC Savana 3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1971-1972 GMC Sprint
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1977 GMC Sprint
454 Chevy Big Block V8
1967 GMC Suburban
396 Chevy Big Block V8
402 Chevy Big Block V8
1964-1967 Mercury Caliente
Ford 289
1966-1967 Mercury Capri
Ford 289
1969-1973 Mercury Colony Park
429 Ford 385 Series Big Block V8
1964-1968 Mercury Comet
Ford 289
1967 Mercury Commuter
Ford 289
1967-1968 Mercury Cougar
Ford 289
1969-1971 Mercury Cougar
429 Ford 385 Series Big Block V8
1963 Mercury Country Cruiser
Ford 289
1964-1968 Mercury Cyclone
Ford 289
1969-1971 Mercury Cyclone
429 Ford 385 Series Big Block V8
1969-1970 Mercury Marauder
429 Ford 385 Series Big Block V8
1969-1973 Mercury Marquis
429 Ford 385 Series Big Block V8
1963 Mercury Meteor
Ford 289
1968 Mercury Montego
Ford 289
1970-1973 Mercury Montego
429 Ford 385 Series Big Block V8
1969-1973 Mercury Monterey
429 Ford 385 Series Big Block V8
1964-1967 Mercury Villager
Ford 289
1966-1967 Mercury Voyager
Ford 289
1968-1971 Plymouth Barracuda
426 Hemi
1966-1970 Plymouth Belvedere
426 Hemi
1966-1967 Plymouth Belvedere II
426 Hemi
1970-1971 Plymouth Cuda
426 Hemi
1966 Plymouth Fury
426 Hemi
1967-1970 Plymouth GTX
426 Hemi
1968-1971 Plymouth Roadrunner
426 Hemi
1966-1967 Plymouth Satellite
426 Hemi
1970 Plymouth Superbird
426 Hemi
1963-1968 Shelby Cobra
Ford 289